/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:30:25,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:30:25,316 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:30:25,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:30:25,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:30:25,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:30:25,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:30:25,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:30:25,343 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:30:25,345 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:30:25,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:30:25,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:30:25,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:30:25,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:30:25,347 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:30:25,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:30:25,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:30:25,348 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:30:25,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:30:25,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:30:25,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:30:25,349 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:30:25,350 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:30:25,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:30:25,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:30:25,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:30:25,352 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:30:25,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:30:25,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:30:25,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:30:25,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:30:25,574 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:30:25,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2023-12-16 04:30:26,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:30:26,763 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:30:26,764 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i [2023-12-16 04:30:26,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308e1bd7e/61be141b97124f87b4d6ed57262d9ea2/FLAG5d1a62e68 [2023-12-16 04:30:26,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308e1bd7e/61be141b97124f87b4d6ed57262d9ea2 [2023-12-16 04:30:26,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:30:26,796 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:30:26,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:30:26,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:30:26,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:30:26,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:30:26" (1/1) ... [2023-12-16 04:30:26,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc6fca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:26, skipping insertion in model container [2023-12-16 04:30:26,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:30:26" (1/1) ... [2023-12-16 04:30:26,830 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:30:26,916 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2023-12-16 04:30:26,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:30:26,965 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:30:26,972 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-90.i[916,929] [2023-12-16 04:30:27,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:30:27,022 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:30:27,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27 WrapperNode [2023-12-16 04:30:27,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:30:27,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:30:27,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:30:27,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:30:27,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,091 INFO L138 Inliner]: procedures = 26, calls = 162, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 463 [2023-12-16 04:30:27,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:30:27,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:30:27,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:30:27,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:30:27,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,104 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,141 INFO L175 MemorySlicer]: Split 130 memory accesses to 2 slices as follows [2, 128]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 19 writes are split as follows [0, 19]. [2023-12-16 04:30:27,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:30:27,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:30:27,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:30:27,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:30:27,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (1/1) ... [2023-12-16 04:30:27,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:30:27,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:30:27,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 04:30:27,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:30:27,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:30:27,235 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:30:27,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:30:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:30:27,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:30:27,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:30:27,328 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:30:27,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:30:27,674 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:30:27,710 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:30:27,710 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:30:27,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:30:27 BoogieIcfgContainer [2023-12-16 04:30:27,711 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:30:27,726 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:30:27,726 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:30:27,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:30:27,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:30:26" (1/3) ... [2023-12-16 04:30:27,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d9b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:30:27, skipping insertion in model container [2023-12-16 04:30:27,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:30:27" (2/3) ... [2023-12-16 04:30:27,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4d9b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:30:27, skipping insertion in model container [2023-12-16 04:30:27,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:30:27" (3/3) ... [2023-12-16 04:30:27,730 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-90.i [2023-12-16 04:30:27,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:30:27,746 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:30:27,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:30:27,798 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;@1883f1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:30:27,798 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:30:27,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:27,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:30:27,812 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:27,812 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:27,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:27,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:27,817 INFO L85 PathProgramCache]: Analyzing trace with hash 584961870, now seen corresponding path program 1 times [2023-12-16 04:30:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:27,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758064389] [2023-12-16 04:30:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:27,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:28,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:28,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758064389] [2023-12-16 04:30:28,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758064389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:28,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:28,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:30:28,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892553068] [2023-12-16 04:30:28,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:28,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:30:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:28,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:30:28,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:30:28,127 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:28,161 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2023-12-16 04:30:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:30:28,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2023-12-16 04:30:28,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:28,168 INFO L225 Difference]: With dead ends: 205 [2023-12-16 04:30:28,168 INFO L226 Difference]: Without dead ends: 102 [2023-12-16 04:30:28,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:30:28,172 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:28,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:30:28,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-16 04:30:28,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-16 04:30:28,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2023-12-16 04:30:28,218 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2023-12-16 04:30:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:28,218 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2023-12-16 04:30:28,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2023-12-16 04:30:28,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 04:30:28,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:28,226 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:28,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:30:28,227 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:28,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:28,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2029456678, now seen corresponding path program 1 times [2023-12-16 04:30:28,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:28,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313056350] [2023-12-16 04:30:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:28,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:28,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:28,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:28,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313056350] [2023-12-16 04:30:28,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313056350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:28,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:28,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:30:28,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685562147] [2023-12-16 04:30:28,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:28,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:30:28,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:28,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:30:28,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:30:28,637 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:28,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:28,697 INFO L93 Difference]: Finished difference Result 231 states and 339 transitions. [2023-12-16 04:30:28,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:30:28,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-16 04:30:28,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:28,700 INFO L225 Difference]: With dead ends: 231 [2023-12-16 04:30:28,700 INFO L226 Difference]: Without dead ends: 130 [2023-12-16 04:30:28,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:28,702 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 61 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:28,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 466 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:30:28,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-12-16 04:30:28,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 104. [2023-12-16 04:30:28,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2023-12-16 04:30:28,710 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2023-12-16 04:30:28,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:28,711 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2023-12-16 04:30:28,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:28,712 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2023-12-16 04:30:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:30:28,713 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:28,713 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:28,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:30:28,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:28,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 737193547, now seen corresponding path program 1 times [2023-12-16 04:30:28,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:28,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326040204] [2023-12-16 04:30:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:28,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:29,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:29,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:29,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326040204] [2023-12-16 04:30:29,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326040204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:29,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:29,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351043978] [2023-12-16 04:30:29,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:29,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:29,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:29,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:29,111 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:29,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:29,383 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2023-12-16 04:30:29,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:29,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:30:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:29,388 INFO L225 Difference]: With dead ends: 312 [2023-12-16 04:30:29,389 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 04:30:29,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:29,394 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 126 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:29,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 714 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 04:30:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2023-12-16 04:30:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:29,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2023-12-16 04:30:29,414 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2023-12-16 04:30:29,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:29,418 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2023-12-16 04:30:29,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2023-12-16 04:30:29,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-16 04:30:29,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:29,419 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:29,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:30:29,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:29,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1159895373, now seen corresponding path program 1 times [2023-12-16 04:30:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413029413] [2023-12-16 04:30:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:29,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:29,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:29,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413029413] [2023-12-16 04:30:29,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413029413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:29,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:29,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22652032] [2023-12-16 04:30:29,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:29,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:29,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:29,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:29,900 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:30,317 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2023-12-16 04:30:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:30,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-16 04:30:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:30,321 INFO L225 Difference]: With dead ends: 311 [2023-12-16 04:30:30,321 INFO L226 Difference]: Without dead ends: 203 [2023-12-16 04:30:30,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:30,326 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 361 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:30,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 229 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:30,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-16 04:30:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2023-12-16 04:30:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2023-12-16 04:30:30,348 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2023-12-16 04:30:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:30,348 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2023-12-16 04:30:30,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:30,349 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2023-12-16 04:30:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 04:30:30,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:30,351 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:30,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:30:30,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:30,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -685099385, now seen corresponding path program 1 times [2023-12-16 04:30:30,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:30,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273153259] [2023-12-16 04:30:30,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:30,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:31,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:31,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:31,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273153259] [2023-12-16 04:30:31,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273153259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:31,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:31,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:30:31,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947686865] [2023-12-16 04:30:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:31,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:30:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:30:31,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:31,263 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:31,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:31,648 INFO L93 Difference]: Finished difference Result 354 states and 508 transitions. [2023-12-16 04:30:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:30:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2023-12-16 04:30:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:31,649 INFO L225 Difference]: With dead ends: 354 [2023-12-16 04:30:31,649 INFO L226 Difference]: Without dead ends: 244 [2023-12-16 04:30:31,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:30:31,650 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 169 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:31,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 647 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:31,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-16 04:30:31,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 145. [2023-12-16 04:30:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 123 states have (on average 1.3577235772357723) internal successors, (167), 123 states have internal predecessors, (167), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:31,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 207 transitions. [2023-12-16 04:30:31,658 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 207 transitions. Word has length 151 [2023-12-16 04:30:31,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:31,658 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 207 transitions. [2023-12-16 04:30:31,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 207 transitions. [2023-12-16 04:30:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 04:30:31,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:31,659 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:31,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:30:31,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:31,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash -943264823, now seen corresponding path program 1 times [2023-12-16 04:30:31,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:31,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720955549] [2023-12-16 04:30:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:31,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:32,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:32,380 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:32,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720955549] [2023-12-16 04:30:32,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720955549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:32,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:32,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:30:32,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765820068] [2023-12-16 04:30:32,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:32,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:30:32,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:32,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:30:32,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:32,382 INFO L87 Difference]: Start difference. First operand 145 states and 207 transitions. Second operand has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:32,653 INFO L93 Difference]: Finished difference Result 313 states and 445 transitions. [2023-12-16 04:30:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:30:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2023-12-16 04:30:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:32,656 INFO L225 Difference]: With dead ends: 313 [2023-12-16 04:30:32,656 INFO L226 Difference]: Without dead ends: 169 [2023-12-16 04:30:32,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:30:32,657 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 177 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:32,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 457 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:32,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-16 04:30:32,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2023-12-16 04:30:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.3410852713178294) internal successors, (173), 129 states have internal predecessors, (173), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 04:30:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 213 transitions. [2023-12-16 04:30:32,665 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 213 transitions. Word has length 151 [2023-12-16 04:30:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 213 transitions. [2023-12-16 04:30:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 213 transitions. [2023-12-16 04:30:32,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:30:32,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:32,668 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:32,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 04:30:32,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:32,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:32,668 INFO L85 PathProgramCache]: Analyzing trace with hash 372292528, now seen corresponding path program 1 times [2023-12-16 04:30:32,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:32,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119883488] [2023-12-16 04:30:32,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:32,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:33,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:34,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:34,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119883488] [2023-12-16 04:30:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119883488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:30:34,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471483073] [2023-12-16 04:30:34,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:34,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:30:34,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:30:34,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:30:34,041 INFO L87 Difference]: Start difference. First operand 152 states and 213 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:35,049 INFO L93 Difference]: Finished difference Result 464 states and 651 transitions. [2023-12-16 04:30:35,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 04:30:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:30:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:35,050 INFO L225 Difference]: With dead ends: 464 [2023-12-16 04:30:35,050 INFO L226 Difference]: Without dead ends: 313 [2023-12-16 04:30:35,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:30:35,051 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 275 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:35,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1283 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:30:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-12-16 04:30:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 213. [2023-12-16 04:30:35,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 187 states have (on average 1.3475935828877006) internal successors, (252), 188 states have internal predecessors, (252), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:30:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 296 transitions. [2023-12-16 04:30:35,062 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 296 transitions. Word has length 152 [2023-12-16 04:30:35,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:35,062 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 296 transitions. [2023-12-16 04:30:35,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 296 transitions. [2023-12-16 04:30:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:30:35,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:35,064 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:35,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:30:35,064 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:35,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:35,064 INFO L85 PathProgramCache]: Analyzing trace with hash -214513486, now seen corresponding path program 1 times [2023-12-16 04:30:35,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:35,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794384995] [2023-12-16 04:30:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:35,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:35,930 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:35,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:35,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794384995] [2023-12-16 04:30:35,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794384995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:35,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:35,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:30:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114157233] [2023-12-16 04:30:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:35,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:30:35,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:35,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:30:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:35,932 INFO L87 Difference]: Start difference. First operand 213 states and 296 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:36,223 INFO L93 Difference]: Finished difference Result 502 states and 696 transitions. [2023-12-16 04:30:36,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:30:36,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-16 04:30:36,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:36,226 INFO L225 Difference]: With dead ends: 502 [2023-12-16 04:30:36,226 INFO L226 Difference]: Without dead ends: 290 [2023-12-16 04:30:36,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:30:36,226 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 118 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:36,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 817 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:36,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-16 04:30:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 207. [2023-12-16 04:30:36,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 181 states have (on average 1.3370165745856353) internal successors, (242), 182 states have internal predecessors, (242), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:30:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 286 transitions. [2023-12-16 04:30:36,236 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 286 transitions. Word has length 152 [2023-12-16 04:30:36,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:36,237 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 286 transitions. [2023-12-16 04:30:36,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:36,237 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 286 transitions. [2023-12-16 04:30:36,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:30:36,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:36,238 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:36,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 04:30:36,238 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:36,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1216055374, now seen corresponding path program 1 times [2023-12-16 04:30:36,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:36,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198091272] [2023-12-16 04:30:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:36,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:36,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198091272] [2023-12-16 04:30:36,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198091272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:36,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:36,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:30:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109941367] [2023-12-16 04:30:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:36,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:30:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:36,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:30:36,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:36,989 INFO L87 Difference]: Start difference. First operand 207 states and 286 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:37,301 INFO L93 Difference]: Finished difference Result 492 states and 679 transitions. [2023-12-16 04:30:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:30:37,301 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 152 [2023-12-16 04:30:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:37,303 INFO L225 Difference]: With dead ends: 492 [2023-12-16 04:30:37,303 INFO L226 Difference]: Without dead ends: 286 [2023-12-16 04:30:37,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:30:37,303 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 133 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:37,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 689 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-16 04:30:37,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 207. [2023-12-16 04:30:37,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 181 states have (on average 1.3259668508287292) internal successors, (240), 182 states have internal predecessors, (240), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-16 04:30:37,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 284 transitions. [2023-12-16 04:30:37,315 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 284 transitions. Word has length 152 [2023-12-16 04:30:37,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:37,316 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 284 transitions. [2023-12-16 04:30:37,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:37,316 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 284 transitions. [2023-12-16 04:30:37,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 04:30:37,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:37,317 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:37,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 04:30:37,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:37,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:37,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1802861388, now seen corresponding path program 1 times [2023-12-16 04:30:37,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:37,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171006250] [2023-12-16 04:30:37,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:37,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:37,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:38,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 54 proven. 54 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-12-16 04:30:38,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:38,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171006250] [2023-12-16 04:30:38,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171006250] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:30:38,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813398922] [2023-12-16 04:30:38,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:38,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:30:38,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:30:38,043 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) [2023-12-16 04:30:38,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:30:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:38,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-16 04:30:38,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:30:38,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2023-12-16 04:30:38,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2023-12-16 04:30:38,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-12-16 04:30:38,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:30:38,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 32 [2023-12-16 04:30:38,464 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:30:38,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:30:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:38,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813398922] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:30:38,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:30:38,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 10] total 19 [2023-12-16 04:30:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019551017] [2023-12-16 04:30:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:38,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:30:38,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:38,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:30:38,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:30:38,630 INFO L87 Difference]: Start difference. First operand 207 states and 284 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:39,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:39,191 INFO L93 Difference]: Finished difference Result 539 states and 739 transitions. [2023-12-16 04:30:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:30:39,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-16 04:30:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:39,193 INFO L225 Difference]: With dead ends: 539 [2023-12-16 04:30:39,193 INFO L226 Difference]: Without dead ends: 333 [2023-12-16 04:30:39,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 339 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2023-12-16 04:30:39,194 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 211 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:39,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1020 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:39,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2023-12-16 04:30:39,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 260. [2023-12-16 04:30:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 228 states have internal predecessors, (298), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:30:39,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2023-12-16 04:30:39,211 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 152 [2023-12-16 04:30:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:39,211 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2023-12-16 04:30:39,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:39,211 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2023-12-16 04:30:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:30:39,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:39,212 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:39,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:30:39,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 04:30:39,423 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:39,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1680575609, now seen corresponding path program 1 times [2023-12-16 04:30:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:39,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795827996] [2023-12-16 04:30:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:39,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:39,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:39,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795827996] [2023-12-16 04:30:39,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795827996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:39,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:39,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:39,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829296506] [2023-12-16 04:30:39,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:39,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:39,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:39,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:39,914 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:40,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:40,112 INFO L93 Difference]: Finished difference Result 760 states and 1041 transitions. [2023-12-16 04:30:40,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:30:40,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:30:40,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:40,115 INFO L225 Difference]: With dead ends: 760 [2023-12-16 04:30:40,115 INFO L226 Difference]: Without dead ends: 501 [2023-12-16 04:30:40,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:40,116 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 142 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:40,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 378 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-16 04:30:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 256. [2023-12-16 04:30:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 222 states have (on average 1.3198198198198199) internal successors, (293), 224 states have internal predecessors, (293), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:30:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 349 transitions. [2023-12-16 04:30:40,131 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 349 transitions. Word has length 153 [2023-12-16 04:30:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:40,131 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 349 transitions. [2023-12-16 04:30:40,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 349 transitions. [2023-12-16 04:30:40,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:30:40,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:40,133 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:40,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 04:30:40,133 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:40,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:40,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1603274437, now seen corresponding path program 1 times [2023-12-16 04:30:40,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:40,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711998973] [2023-12-16 04:30:40,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:40,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:40,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,329 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:40,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:40,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711998973] [2023-12-16 04:30:40,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711998973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:40,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:40,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122141905] [2023-12-16 04:30:40,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:40,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:40,331 INFO L87 Difference]: Start difference. First operand 256 states and 349 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:40,546 INFO L93 Difference]: Finished difference Result 649 states and 889 transitions. [2023-12-16 04:30:40,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:30:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:30:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:40,548 INFO L225 Difference]: With dead ends: 649 [2023-12-16 04:30:40,548 INFO L226 Difference]: Without dead ends: 394 [2023-12-16 04:30:40,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:40,549 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 141 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:40,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 504 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:40,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-16 04:30:40,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 295. [2023-12-16 04:30:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 261 states have (on average 1.314176245210728) internal successors, (343), 263 states have internal predecessors, (343), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:30:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 399 transitions. [2023-12-16 04:30:40,564 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 399 transitions. Word has length 153 [2023-12-16 04:30:40,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:40,564 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 399 transitions. [2023-12-16 04:30:40,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:40,564 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 399 transitions. [2023-12-16 04:30:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:30:40,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:40,565 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:40,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 04:30:40,566 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:40,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1912791813, now seen corresponding path program 1 times [2023-12-16 04:30:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:40,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463000031] [2023-12-16 04:30:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:40,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:40,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463000031] [2023-12-16 04:30:40,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463000031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:40,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:40,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:40,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785043508] [2023-12-16 04:30:40,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:40,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:40,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:40,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:40,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:40,747 INFO L87 Difference]: Start difference. First operand 295 states and 399 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:40,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:40,989 INFO L93 Difference]: Finished difference Result 829 states and 1140 transitions. [2023-12-16 04:30:40,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:30:40,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:30:40,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:40,991 INFO L225 Difference]: With dead ends: 829 [2023-12-16 04:30:40,992 INFO L226 Difference]: Without dead ends: 535 [2023-12-16 04:30:40,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:40,993 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 135 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:40,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 612 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:40,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2023-12-16 04:30:41,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 336. [2023-12-16 04:30:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 302 states have (on average 1.3178807947019868) internal successors, (398), 304 states have internal predecessors, (398), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-16 04:30:41,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 454 transitions. [2023-12-16 04:30:41,008 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 454 transitions. Word has length 153 [2023-12-16 04:30:41,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:41,009 INFO L495 AbstractCegarLoop]: Abstraction has 336 states and 454 transitions. [2023-12-16 04:30:41,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 454 transitions. [2023-12-16 04:30:41,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 04:30:41,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:41,010 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:41,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 04:30:41,010 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:41,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:41,011 INFO L85 PathProgramCache]: Analyzing trace with hash -901674563, now seen corresponding path program 1 times [2023-12-16 04:30:41,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468504520] [2023-12-16 04:30:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:41,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:41,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:41,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:41,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:41,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468504520] [2023-12-16 04:30:41,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468504520] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:41,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:41,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34381499] [2023-12-16 04:30:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:41,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:41,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:41,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:41,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:41,546 INFO L87 Difference]: Start difference. First operand 336 states and 454 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:41,744 INFO L93 Difference]: Finished difference Result 757 states and 1019 transitions. [2023-12-16 04:30:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-16 04:30:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:41,746 INFO L225 Difference]: With dead ends: 757 [2023-12-16 04:30:41,747 INFO L226 Difference]: Without dead ends: 422 [2023-12-16 04:30:41,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:41,748 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 106 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:41,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 535 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2023-12-16 04:30:41,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 295. [2023-12-16 04:30:41,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 263 states have (on average 1.2927756653992395) internal successors, (340), 264 states have internal predecessors, (340), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 04:30:41,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 392 transitions. [2023-12-16 04:30:41,761 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 392 transitions. Word has length 153 [2023-12-16 04:30:41,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:41,763 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 392 transitions. [2023-12-16 04:30:41,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:41,763 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 392 transitions. [2023-12-16 04:30:41,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 04:30:41,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:41,765 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:41,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 04:30:41,765 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:41,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 880059055, now seen corresponding path program 1 times [2023-12-16 04:30:41,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:41,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472147548] [2023-12-16 04:30:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:41,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:42,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:42,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472147548] [2023-12-16 04:30:42,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472147548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:42,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:42,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:30:42,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777142670] [2023-12-16 04:30:42,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:42,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:30:42,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:42,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:30:42,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:30:42,294 INFO L87 Difference]: Start difference. First operand 295 states and 392 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:42,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:42,624 INFO L93 Difference]: Finished difference Result 665 states and 893 transitions. [2023-12-16 04:30:42,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:30:42,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2023-12-16 04:30:42,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:42,626 INFO L225 Difference]: With dead ends: 665 [2023-12-16 04:30:42,626 INFO L226 Difference]: Without dead ends: 371 [2023-12-16 04:30:42,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:30:42,627 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 268 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:42,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 614 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:42,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2023-12-16 04:30:42,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 297. [2023-12-16 04:30:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 265 states have (on average 1.290566037735849) internal successors, (342), 266 states have internal predecessors, (342), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 04:30:42,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 394 transitions. [2023-12-16 04:30:42,640 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 394 transitions. Word has length 154 [2023-12-16 04:30:42,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:42,641 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 394 transitions. [2023-12-16 04:30:42,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:42,641 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 394 transitions. [2023-12-16 04:30:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:42,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:42,642 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:42,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 04:30:42,643 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:42,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:42,643 INFO L85 PathProgramCache]: Analyzing trace with hash -533290926, now seen corresponding path program 1 times [2023-12-16 04:30:42,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:42,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193177262] [2023-12-16 04:30:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:43,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:43,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193177262] [2023-12-16 04:30:43,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193177262] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:43,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:43,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905517702] [2023-12-16 04:30:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:43,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:43,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:43,082 INFO L87 Difference]: Start difference. First operand 297 states and 394 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:43,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:43,334 INFO L93 Difference]: Finished difference Result 808 states and 1060 transitions. [2023-12-16 04:30:43,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:43,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:43,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:43,337 INFO L225 Difference]: With dead ends: 808 [2023-12-16 04:30:43,337 INFO L226 Difference]: Without dead ends: 512 [2023-12-16 04:30:43,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:43,338 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 79 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:43,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 523 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:43,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-12-16 04:30:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 509. [2023-12-16 04:30:43,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 454 states have (on average 1.2665198237885462) internal successors, (575), 457 states have internal predecessors, (575), 44 states have call successors, (44), 10 states have call predecessors, (44), 10 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 04:30:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 663 transitions. [2023-12-16 04:30:43,365 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 663 transitions. Word has length 155 [2023-12-16 04:30:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:43,366 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 663 transitions. [2023-12-16 04:30:43,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 663 transitions. [2023-12-16 04:30:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:43,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:43,368 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:43,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 04:30:43,368 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:43,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash -926317936, now seen corresponding path program 1 times [2023-12-16 04:30:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471389693] [2023-12-16 04:30:43,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:43,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:44,080 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:44,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:44,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471389693] [2023-12-16 04:30:44,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471389693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:44,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:44,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:30:44,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277814760] [2023-12-16 04:30:44,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:44,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:30:44,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:44,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:30:44,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:30:44,082 INFO L87 Difference]: Start difference. First operand 509 states and 663 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:44,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:44,785 INFO L93 Difference]: Finished difference Result 1315 states and 1701 transitions. [2023-12-16 04:30:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:30:44,786 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:44,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:44,788 INFO L225 Difference]: With dead ends: 1315 [2023-12-16 04:30:44,788 INFO L226 Difference]: Without dead ends: 807 [2023-12-16 04:30:44,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:30:44,789 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 355 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:44,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1119 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:30:44,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-12-16 04:30:44,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 792. [2023-12-16 04:30:44,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 694 states have (on average 1.2463976945244957) internal successors, (865), 700 states have internal predecessors, (865), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 04:30:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1021 transitions. [2023-12-16 04:30:44,832 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1021 transitions. Word has length 155 [2023-12-16 04:30:44,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:44,832 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1021 transitions. [2023-12-16 04:30:44,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:44,832 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1021 transitions. [2023-12-16 04:30:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:44,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:44,834 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:44,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 04:30:44,834 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:44,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:44,834 INFO L85 PathProgramCache]: Analyzing trace with hash -381826501, now seen corresponding path program 1 times [2023-12-16 04:30:44,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:44,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346274546] [2023-12-16 04:30:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:44,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:45,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:45,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:45,381 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:45,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:45,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346274546] [2023-12-16 04:30:45,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346274546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:45,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:45,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:45,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011319879] [2023-12-16 04:30:45,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:45,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:45,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:45,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:45,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:45,382 INFO L87 Difference]: Start difference. First operand 792 states and 1021 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:45,605 INFO L93 Difference]: Finished difference Result 1652 states and 2138 transitions. [2023-12-16 04:30:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:30:45,605 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:45,608 INFO L225 Difference]: With dead ends: 1652 [2023-12-16 04:30:45,608 INFO L226 Difference]: Without dead ends: 861 [2023-12-16 04:30:45,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:45,609 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 77 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:45,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 523 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-12-16 04:30:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 781. [2023-12-16 04:30:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 683 states have (on average 1.2357247437774523) internal successors, (844), 689 states have internal predecessors, (844), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 04:30:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1000 transitions. [2023-12-16 04:30:45,673 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1000 transitions. Word has length 155 [2023-12-16 04:30:45,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:45,673 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1000 transitions. [2023-12-16 04:30:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1000 transitions. [2023-12-16 04:30:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:45,675 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:45,675 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:45,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 04:30:45,675 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:45,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1704536005, now seen corresponding path program 1 times [2023-12-16 04:30:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:45,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450055413] [2023-12-16 04:30:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:45,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:46,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:46,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450055413] [2023-12-16 04:30:46,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450055413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:46,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:46,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:46,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441202242] [2023-12-16 04:30:46,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:46,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:46,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:46,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:46,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:46,262 INFO L87 Difference]: Start difference. First operand 781 states and 1000 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:46,460 INFO L93 Difference]: Finished difference Result 1582 states and 2027 transitions. [2023-12-16 04:30:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:46,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:46,463 INFO L225 Difference]: With dead ends: 1582 [2023-12-16 04:30:46,463 INFO L226 Difference]: Without dead ends: 802 [2023-12-16 04:30:46,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:46,465 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 140 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:46,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 460 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:30:46,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-12-16 04:30:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 777. [2023-12-16 04:30:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 679 states have (on average 1.2312223858615612) internal successors, (836), 685 states have internal predecessors, (836), 78 states have call successors, (78), 19 states have call predecessors, (78), 19 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-16 04:30:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 992 transitions. [2023-12-16 04:30:46,513 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 992 transitions. Word has length 155 [2023-12-16 04:30:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:46,513 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 992 transitions. [2023-12-16 04:30:46,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 992 transitions. [2023-12-16 04:30:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:46,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:46,514 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:46,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 04:30:46,515 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:46,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:46,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1553071580, now seen corresponding path program 1 times [2023-12-16 04:30:46,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:46,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996270371] [2023-12-16 04:30:46,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:46,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:46,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996270371] [2023-12-16 04:30:46,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996270371] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:46,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:46,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508207892] [2023-12-16 04:30:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:46,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:46,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:46,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:46,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:46,859 INFO L87 Difference]: Start difference. First operand 777 states and 992 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:47,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:47,165 INFO L93 Difference]: Finished difference Result 1776 states and 2264 transitions. [2023-12-16 04:30:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:47,177 INFO L225 Difference]: With dead ends: 1776 [2023-12-16 04:30:47,177 INFO L226 Difference]: Without dead ends: 1000 [2023-12-16 04:30:47,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:47,179 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 85 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:47,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 467 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:47,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2023-12-16 04:30:47,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 997. [2023-12-16 04:30:47,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 872 states have (on average 1.2259174311926606) internal successors, (1069), 880 states have internal predecessors, (1069), 100 states have call successors, (100), 24 states have call predecessors, (100), 24 states have return successors, (100), 92 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:30:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1269 transitions. [2023-12-16 04:30:47,243 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1269 transitions. Word has length 155 [2023-12-16 04:30:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:47,243 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1269 transitions. [2023-12-16 04:30:47,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1269 transitions. [2023-12-16 04:30:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:47,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:47,245 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:47,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 04:30:47,246 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:47,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1946098590, now seen corresponding path program 1 times [2023-12-16 04:30:47,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:47,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025402380] [2023-12-16 04:30:47,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:47,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:47,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025402380] [2023-12-16 04:30:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025402380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:47,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:47,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:30:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073976890] [2023-12-16 04:30:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:47,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:30:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:30:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:30:47,987 INFO L87 Difference]: Start difference. First operand 997 states and 1269 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:48,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:48,883 INFO L93 Difference]: Finished difference Result 2207 states and 2805 transitions. [2023-12-16 04:30:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 04:30:48,886 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 155 [2023-12-16 04:30:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:48,890 INFO L225 Difference]: With dead ends: 2207 [2023-12-16 04:30:48,890 INFO L226 Difference]: Without dead ends: 1211 [2023-12-16 04:30:48,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2023-12-16 04:30:48,892 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 270 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:48,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1076 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:30:48,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2023-12-16 04:30:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 979. [2023-12-16 04:30:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 877 states have (on average 1.2212086659064993) internal successors, (1071), 883 states have internal predecessors, (1071), 80 states have call successors, (80), 21 states have call predecessors, (80), 21 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 04:30:48,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1231 transitions. [2023-12-16 04:30:48,940 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1231 transitions. Word has length 155 [2023-12-16 04:30:48,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:48,940 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 1231 transitions. [2023-12-16 04:30:48,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:48,941 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1231 transitions. [2023-12-16 04:30:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 04:30:48,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:48,942 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:48,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 04:30:48,943 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:48,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:48,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1615111194, now seen corresponding path program 1 times [2023-12-16 04:30:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54450043] [2023-12-16 04:30:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:49,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:49,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:49,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54450043] [2023-12-16 04:30:49,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54450043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:49,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:49,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747344952] [2023-12-16 04:30:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:49,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:49,083 INFO L87 Difference]: Start difference. First operand 979 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:49,311 INFO L93 Difference]: Finished difference Result 2078 states and 2635 transitions. [2023-12-16 04:30:49,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:49,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2023-12-16 04:30:49,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:49,316 INFO L225 Difference]: With dead ends: 2078 [2023-12-16 04:30:49,316 INFO L226 Difference]: Without dead ends: 1100 [2023-12-16 04:30:49,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:49,318 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 121 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:49,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 721 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2023-12-16 04:30:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 940. [2023-12-16 04:30:49,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 838 states have (on average 1.220763723150358) internal successors, (1023), 844 states have internal predecessors, (1023), 80 states have call successors, (80), 21 states have call predecessors, (80), 21 states have return successors, (80), 74 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-16 04:30:49,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1183 transitions. [2023-12-16 04:30:49,362 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1183 transitions. Word has length 155 [2023-12-16 04:30:49,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:49,362 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1183 transitions. [2023-12-16 04:30:49,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1183 transitions. [2023-12-16 04:30:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 04:30:49,364 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:49,364 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:49,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 04:30:49,364 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:49,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 208953684, now seen corresponding path program 1 times [2023-12-16 04:30:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012936122] [2023-12-16 04:30:49,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:49,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:49,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012936122] [2023-12-16 04:30:49,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012936122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:49,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:49,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:30:49,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828128343] [2023-12-16 04:30:49,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:49,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:30:49,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:49,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:30:49,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:30:49,461 INFO L87 Difference]: Start difference. First operand 940 states and 1183 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:49,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:49,687 INFO L93 Difference]: Finished difference Result 2641 states and 3326 transitions. [2023-12-16 04:30:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 04:30:49,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2023-12-16 04:30:49,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:49,691 INFO L225 Difference]: With dead ends: 2641 [2023-12-16 04:30:49,691 INFO L226 Difference]: Without dead ends: 1702 [2023-12-16 04:30:49,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:49,692 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:49,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 327 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:49,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2023-12-16 04:30:49,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1250. [2023-12-16 04:30:49,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1123 states have (on average 1.2279608192341942) internal successors, (1379), 1129 states have internal predecessors, (1379), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:30:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1579 transitions. [2023-12-16 04:30:49,743 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1579 transitions. Word has length 156 [2023-12-16 04:30:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:49,743 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1579 transitions. [2023-12-16 04:30:49,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1579 transitions. [2023-12-16 04:30:49,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 04:30:49,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:49,745 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:49,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 04:30:49,745 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:49,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:49,745 INFO L85 PathProgramCache]: Analyzing trace with hash -377852330, now seen corresponding path program 1 times [2023-12-16 04:30:49,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:49,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120021992] [2023-12-16 04:30:49,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:49,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120021992] [2023-12-16 04:30:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120021992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:30:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992189439] [2023-12-16 04:30:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:50,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:30:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:30:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:50,303 INFO L87 Difference]: Start difference. First operand 1250 states and 1579 transitions. Second operand has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:30:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:50,747 INFO L93 Difference]: Finished difference Result 3133 states and 3957 transitions. [2023-12-16 04:30:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:30:50,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2023-12-16 04:30:50,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:50,753 INFO L225 Difference]: With dead ends: 3133 [2023-12-16 04:30:50,753 INFO L226 Difference]: Without dead ends: 2184 [2023-12-16 04:30:50,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:30:50,755 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 128 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:50,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 726 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2023-12-16 04:30:50,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 1480. [2023-12-16 04:30:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1353 states have (on average 1.23059866962306) internal successors, (1665), 1359 states have internal predecessors, (1665), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:30:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1865 transitions. [2023-12-16 04:30:50,818 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1865 transitions. Word has length 156 [2023-12-16 04:30:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:50,818 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 1865 transitions. [2023-12-16 04:30:50,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.8) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 04:30:50,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1865 transitions. [2023-12-16 04:30:50,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:50,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:50,820 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:50,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 04:30:50,821 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:50,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash 899515343, now seen corresponding path program 1 times [2023-12-16 04:30:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966504172] [2023-12-16 04:30:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:50,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966504172] [2023-12-16 04:30:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966504172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559035564] [2023-12-16 04:30:51,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:51,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:51,002 INFO L87 Difference]: Start difference. First operand 1480 states and 1865 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:51,238 INFO L93 Difference]: Finished difference Result 2849 states and 3605 transitions. [2023-12-16 04:30:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:30:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:51,243 INFO L225 Difference]: With dead ends: 2849 [2023-12-16 04:30:51,243 INFO L226 Difference]: Without dead ends: 1662 [2023-12-16 04:30:51,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:51,245 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 158 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:51,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 665 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:51,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2023-12-16 04:30:51,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1480. [2023-12-16 04:30:51,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1353 states have (on average 1.2187730968218773) internal successors, (1649), 1359 states have internal predecessors, (1649), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:30:51,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1849 transitions. [2023-12-16 04:30:51,301 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1849 transitions. Word has length 157 [2023-12-16 04:30:51,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:51,302 INFO L495 AbstractCegarLoop]: Abstraction has 1480 states and 1849 transitions. [2023-12-16 04:30:51,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:51,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1849 transitions. [2023-12-16 04:30:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:51,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:51,304 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:51,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 04:30:51,304 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:51,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:51,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1109446901, now seen corresponding path program 1 times [2023-12-16 04:30:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:51,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611605135] [2023-12-16 04:30:51,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,699 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:30:51,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:51,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611605135] [2023-12-16 04:30:51,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611605135] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:30:51,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441188490] [2023-12-16 04:30:51,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:51,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:30:51,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:30:51,701 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) [2023-12-16 04:30:51,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:30:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:51,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 04:30:51,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:30:51,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-16 04:30:52,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2023-12-16 04:30:52,249 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:52,249 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:30:52,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441188490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:52,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:30:52,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2023-12-16 04:30:52,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062227204] [2023-12-16 04:30:52,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:52,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:30:52,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:52,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:30:52,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:30:52,251 INFO L87 Difference]: Start difference. First operand 1480 states and 1849 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:53,086 INFO L93 Difference]: Finished difference Result 5395 states and 6741 transitions. [2023-12-16 04:30:53,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-16 04:30:53,087 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:30:53,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:53,097 INFO L225 Difference]: With dead ends: 5395 [2023-12-16 04:30:53,097 INFO L226 Difference]: Without dead ends: 4226 [2023-12-16 04:30:53,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=205, Invalid=985, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 04:30:53,100 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 516 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:53,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 715 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:30:53,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2023-12-16 04:30:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 2353. [2023-12-16 04:30:53,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2353 states, 2125 states have (on average 1.2117647058823529) internal successors, (2575), 2137 states have internal predecessors, (2575), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:30:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 2935 transitions. [2023-12-16 04:30:53,225 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 2935 transitions. Word has length 157 [2023-12-16 04:30:53,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:53,225 INFO L495 AbstractCegarLoop]: Abstraction has 2353 states and 2935 transitions. [2023-12-16 04:30:53,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:53,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 2935 transitions. [2023-12-16 04:30:53,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:53,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:53,227 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:53,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 04:30:53,433 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,SelfDestructingSolverStorable25 [2023-12-16 04:30:53,433 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:53,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1410513033, now seen corresponding path program 1 times [2023-12-16 04:30:53,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:53,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828596303] [2023-12-16 04:30:53,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:53,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:53,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:53,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828596303] [2023-12-16 04:30:53,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828596303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:53,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:53,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:30:53,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030065978] [2023-12-16 04:30:53,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:53,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:30:53,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:53,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:30:53,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:30:53,804 INFO L87 Difference]: Start difference. First operand 2353 states and 2935 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:54,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:54,425 INFO L93 Difference]: Finished difference Result 5256 states and 6560 transitions. [2023-12-16 04:30:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:30:54,425 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-16 04:30:54,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:54,434 INFO L225 Difference]: With dead ends: 5256 [2023-12-16 04:30:54,434 INFO L226 Difference]: Without dead ends: 3310 [2023-12-16 04:30:54,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2023-12-16 04:30:54,438 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 316 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:54,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 789 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:30:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2023-12-16 04:30:54,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2631. [2023-12-16 04:30:54,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2403 states have (on average 1.200582605076987) internal successors, (2885), 2415 states have internal predecessors, (2885), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:30:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3245 transitions. [2023-12-16 04:30:54,574 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3245 transitions. Word has length 157 [2023-12-16 04:30:54,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:54,575 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3245 transitions. [2023-12-16 04:30:54,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3245 transitions. [2023-12-16 04:30:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:54,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:54,577 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:54,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 04:30:54,578 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:54,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:54,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2984757, now seen corresponding path program 1 times [2023-12-16 04:30:54,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:54,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721350442] [2023-12-16 04:30:54,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:54,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:54,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:54,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721350442] [2023-12-16 04:30:54,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721350442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:54,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:54,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:54,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117952723] [2023-12-16 04:30:54,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:54,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:54,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:54,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:54,807 INFO L87 Difference]: Start difference. First operand 2631 states and 3245 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:55,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:55,184 INFO L93 Difference]: Finished difference Result 5207 states and 6449 transitions. [2023-12-16 04:30:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:55,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:30:55,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:55,192 INFO L225 Difference]: With dead ends: 5207 [2023-12-16 04:30:55,192 INFO L226 Difference]: Without dead ends: 2905 [2023-12-16 04:30:55,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:55,195 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 282 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:55,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 345 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:55,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2023-12-16 04:30:55,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2631. [2023-12-16 04:30:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2403 states have (on average 1.1681231793591345) internal successors, (2807), 2415 states have internal predecessors, (2807), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:30:55,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3167 transitions. [2023-12-16 04:30:55,301 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3167 transitions. Word has length 157 [2023-12-16 04:30:55,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:55,302 INFO L495 AbstractCegarLoop]: Abstraction has 2631 states and 3167 transitions. [2023-12-16 04:30:55,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3167 transitions. [2023-12-16 04:30:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:55,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:55,304 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:55,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 04:30:55,304 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:55,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:55,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1249995511, now seen corresponding path program 1 times [2023-12-16 04:30:55,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:55,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548692350] [2023-12-16 04:30:55,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:55,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:55,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548692350] [2023-12-16 04:30:55,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548692350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:55,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:55,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:30:55,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94619040] [2023-12-16 04:30:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:55,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:30:55,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:30:55,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:30:55,646 INFO L87 Difference]: Start difference. First operand 2631 states and 3167 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:56,235 INFO L93 Difference]: Finished difference Result 4536 states and 5503 transitions. [2023-12-16 04:30:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:30:56,236 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:30:56,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:56,241 INFO L225 Difference]: With dead ends: 4536 [2023-12-16 04:30:56,241 INFO L226 Difference]: Without dead ends: 3180 [2023-12-16 04:30:56,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:30:56,244 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 250 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:56,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 934 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:30:56,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2023-12-16 04:30:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 2732. [2023-12-16 04:30:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2504 states have (on average 1.165335463258786) internal successors, (2918), 2516 states have internal predecessors, (2918), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:30:56,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3278 transitions. [2023-12-16 04:30:56,357 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3278 transitions. Word has length 157 [2023-12-16 04:30:56,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:56,357 INFO L495 AbstractCegarLoop]: Abstraction has 2732 states and 3278 transitions. [2023-12-16 04:30:56,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3278 transitions. [2023-12-16 04:30:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:56,360 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:56,361 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:56,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 04:30:56,361 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:56,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1269964423, now seen corresponding path program 1 times [2023-12-16 04:30:56,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:56,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322287876] [2023-12-16 04:30:56,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:56,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:30:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322287876] [2023-12-16 04:30:56,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322287876] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:30:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342947412] [2023-12-16 04:30:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:56,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:30:56,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:30:56,778 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) [2023-12-16 04:30:56,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:30:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:56,941 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-16 04:30:56,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:30:56,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-12-16 04:30:57,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 55 [2023-12-16 04:30:57,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:30:57,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 47 [2023-12-16 04:30:57,495 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:57,495 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:30:57,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342947412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:57,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:30:57,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 19 [2023-12-16 04:30:57,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053637821] [2023-12-16 04:30:57,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:57,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:30:57,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:57,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:30:57,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2023-12-16 04:30:57,497 INFO L87 Difference]: Start difference. First operand 2732 states and 3278 transitions. Second operand has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:58,640 INFO L93 Difference]: Finished difference Result 6577 states and 7884 transitions. [2023-12-16 04:30:58,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 04:30:58,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:30:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:58,647 INFO L225 Difference]: With dead ends: 6577 [2023-12-16 04:30:58,648 INFO L226 Difference]: Without dead ends: 5120 [2023-12-16 04:30:58,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=187, Invalid=1003, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 04:30:58,651 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 338 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:58,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1093 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:30:58,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2023-12-16 04:30:58,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 3175. [2023-12-16 04:30:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2947 states have (on average 1.166610111978283) internal successors, (3438), 2959 states have internal predecessors, (3438), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:30:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 3798 transitions. [2023-12-16 04:30:58,810 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 3798 transitions. Word has length 157 [2023-12-16 04:30:58,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:58,810 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 3798 transitions. [2023-12-16 04:30:58,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.0) internal successors, (60), 11 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:30:58,810 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 3798 transitions. [2023-12-16 04:30:58,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:30:58,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:58,814 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:58,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:30:59,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:30:59,019 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:59,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:59,020 INFO L85 PathProgramCache]: Analyzing trace with hash -429586727, now seen corresponding path program 1 times [2023-12-16 04:30:59,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62987449] [2023-12-16 04:30:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:59,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:59,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:30:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:30:59,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:59,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62987449] [2023-12-16 04:30:59,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62987449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:59,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:59,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:30:59,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768548687] [2023-12-16 04:30:59,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:59,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:30:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:30:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:30:59,507 INFO L87 Difference]: Start difference. First operand 3175 states and 3798 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:30:59,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:59,998 INFO L93 Difference]: Finished difference Result 4894 states and 5869 transitions. [2023-12-16 04:30:59,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 04:30:59,998 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-16 04:30:59,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:00,003 INFO L225 Difference]: With dead ends: 4894 [2023-12-16 04:31:00,004 INFO L226 Difference]: Without dead ends: 3437 [2023-12-16 04:31:00,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:31:00,006 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 238 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:00,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 691 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:31:00,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2023-12-16 04:31:00,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 3133. [2023-12-16 04:31:00,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3133 states, 2905 states have (on average 1.1652323580034423) internal successors, (3385), 2917 states have internal predecessors, (3385), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2023-12-16 04:31:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3133 states to 3133 states and 3745 transitions. [2023-12-16 04:31:00,119 INFO L78 Accepts]: Start accepts. Automaton has 3133 states and 3745 transitions. Word has length 157 [2023-12-16 04:31:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:00,120 INFO L495 AbstractCegarLoop]: Abstraction has 3133 states and 3745 transitions. [2023-12-16 04:31:00,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3133 states and 3745 transitions. [2023-12-16 04:31:00,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:31:00,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:00,123 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:00,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-16 04:31:00,123 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:00,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:00,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1728703307, now seen corresponding path program 1 times [2023-12-16 04:31:00,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:00,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540524836] [2023-12-16 04:31:00,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:00,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:31:00,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:00,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540524836] [2023-12-16 04:31:00,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540524836] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:31:00,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670342590] [2023-12-16 04:31:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:00,494 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) [2023-12-16 04:31:00,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:31:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:00,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-16 04:31:00,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:31:00,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 47 [2023-12-16 04:31:00,839 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:31:00,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 32 [2023-12-16 04:31:00,885 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:00,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:31:00,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670342590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:00,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:31:00,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2023-12-16 04:31:00,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282781825] [2023-12-16 04:31:00,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:00,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:31:00,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:00,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:31:00,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:31:00,889 INFO L87 Difference]: Start difference. First operand 3133 states and 3745 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:01,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:01,358 INFO L93 Difference]: Finished difference Result 5575 states and 6671 transitions. [2023-12-16 04:31:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:31:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:31:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:01,366 INFO L225 Difference]: With dead ends: 5575 [2023-12-16 04:31:01,366 INFO L226 Difference]: Without dead ends: 4160 [2023-12-16 04:31:01,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:31:01,369 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 117 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:01,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 675 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4160 states. [2023-12-16 04:31:01,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4160 to 2972. [2023-12-16 04:31:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2845 states have (on average 1.161335676625659) internal successors, (3304), 2851 states have internal predecessors, (3304), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:31:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3504 transitions. [2023-12-16 04:31:01,488 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3504 transitions. Word has length 157 [2023-12-16 04:31:01,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:01,489 INFO L495 AbstractCegarLoop]: Abstraction has 2972 states and 3504 transitions. [2023-12-16 04:31:01,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:01,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3504 transitions. [2023-12-16 04:31:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:31:01,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:01,493 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:01,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:31:01,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:01,703 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:01,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash 46304055, now seen corresponding path program 1 times [2023-12-16 04:31:01,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:01,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175135843] [2023-12-16 04:31:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:02,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:02,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:02,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175135843] [2023-12-16 04:31:02,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175135843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:02,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:02,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:31:02,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987803266] [2023-12-16 04:31:02,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:02,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:31:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:31:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:31:02,213 INFO L87 Difference]: Start difference. First operand 2972 states and 3504 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:02,478 INFO L93 Difference]: Finished difference Result 5242 states and 6193 transitions. [2023-12-16 04:31:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:31:02,479 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-16 04:31:02,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:02,483 INFO L225 Difference]: With dead ends: 5242 [2023-12-16 04:31:02,483 INFO L226 Difference]: Without dead ends: 3205 [2023-12-16 04:31:02,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:31:02,487 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 120 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:02,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 483 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:02,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2023-12-16 04:31:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 2871. [2023-12-16 04:31:02,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2744 states have (on average 1.1610787172011663) internal successors, (3186), 2750 states have internal predecessors, (3186), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:31:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 3386 transitions. [2023-12-16 04:31:02,562 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 3386 transitions. Word has length 157 [2023-12-16 04:31:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:02,563 INFO L495 AbstractCegarLoop]: Abstraction has 2871 states and 3386 transitions. [2023-12-16 04:31:02,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 3386 transitions. [2023-12-16 04:31:02,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:31:02,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:02,565 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:02,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-16 04:31:02,566 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:02,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:02,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1588154697, now seen corresponding path program 1 times [2023-12-16 04:31:02,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:02,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337844812] [2023-12-16 04:31:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:02,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,071 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:03,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337844812] [2023-12-16 04:31:03,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337844812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:03,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:03,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:31:03,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47616250] [2023-12-16 04:31:03,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:03,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:31:03,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:03,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:31:03,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:31:03,073 INFO L87 Difference]: Start difference. First operand 2871 states and 3386 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:03,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:03,336 INFO L93 Difference]: Finished difference Result 4996 states and 5898 transitions. [2023-12-16 04:31:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:31:03,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2023-12-16 04:31:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:03,341 INFO L225 Difference]: With dead ends: 4996 [2023-12-16 04:31:03,341 INFO L226 Difference]: Without dead ends: 3060 [2023-12-16 04:31:03,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:31:03,344 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 114 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:03,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 617 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:03,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2023-12-16 04:31:03,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2679. [2023-12-16 04:31:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2552 states have (on average 1.1598746081504703) internal successors, (2960), 2558 states have internal predecessors, (2960), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (100), 94 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-16 04:31:03,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 3160 transitions. [2023-12-16 04:31:03,416 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 3160 transitions. Word has length 157 [2023-12-16 04:31:03,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:03,416 INFO L495 AbstractCegarLoop]: Abstraction has 2679 states and 3160 transitions. [2023-12-16 04:31:03,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:03,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 3160 transitions. [2023-12-16 04:31:03,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 04:31:03,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:03,419 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:03,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-16 04:31:03,419 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:03,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash 186852665, now seen corresponding path program 1 times [2023-12-16 04:31:03,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035660056] [2023-12-16 04:31:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:03,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:03,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:03,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,768 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-16 04:31:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035660056] [2023-12-16 04:31:03,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035660056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:31:03,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65565386] [2023-12-16 04:31:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:03,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:31:03,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:31:03,769 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) [2023-12-16 04:31:03,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:31:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:03,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 04:31:03,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:31:03,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-16 04:31:03,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-16 04:31:03,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-12-16 04:31:03,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2023-12-16 04:31:04,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:31:04,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 71 [2023-12-16 04:31:04,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:31:04,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 49 [2023-12-16 04:31:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:04,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:31:04,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65565386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:04,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:31:04,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2023-12-16 04:31:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664413005] [2023-12-16 04:31:04,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:04,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:31:04,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:04,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:31:04,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:31:04,292 INFO L87 Difference]: Start difference. First operand 2679 states and 3160 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:05,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:05,042 INFO L93 Difference]: Finished difference Result 4881 states and 5782 transitions. [2023-12-16 04:31:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 04:31:05,043 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2023-12-16 04:31:05,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:05,047 INFO L225 Difference]: With dead ends: 4881 [2023-12-16 04:31:05,047 INFO L226 Difference]: Without dead ends: 3046 [2023-12-16 04:31:05,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:31:05,050 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 251 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:05,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 678 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:31:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2023-12-16 04:31:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 2661. [2023-12-16 04:31:05,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2435 states have (on average 1.153593429158111) internal successors, (2809), 2448 states have internal predecessors, (2809), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-16 04:31:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3165 transitions. [2023-12-16 04:31:05,171 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3165 transitions. Word has length 157 [2023-12-16 04:31:05,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:05,171 INFO L495 AbstractCegarLoop]: Abstraction has 2661 states and 3165 transitions. [2023-12-16 04:31:05,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:05,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3165 transitions. [2023-12-16 04:31:05,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:05,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:05,174 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:05,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:31:05,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-12-16 04:31:05,391 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:05,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:05,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1458783158, now seen corresponding path program 1 times [2023-12-16 04:31:05,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:05,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460263636] [2023-12-16 04:31:05,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:05,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:05,769 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:05,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:05,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460263636] [2023-12-16 04:31:05,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460263636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:05,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:05,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:31:05,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295644369] [2023-12-16 04:31:05,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:05,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:31:05,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:05,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:31:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:31:05,770 INFO L87 Difference]: Start difference. First operand 2661 states and 3165 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:06,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:06,338 INFO L93 Difference]: Finished difference Result 5151 states and 6163 transitions. [2023-12-16 04:31:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:31:06,338 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:31:06,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:06,343 INFO L225 Difference]: With dead ends: 5151 [2023-12-16 04:31:06,343 INFO L226 Difference]: Without dead ends: 3003 [2023-12-16 04:31:06,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:31:06,346 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 226 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:06,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1223 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:31:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3003 states. [2023-12-16 04:31:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3003 to 2677. [2023-12-16 04:31:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2451 states have (on average 1.1525907792737657) internal successors, (2825), 2464 states have internal predecessors, (2825), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-16 04:31:06,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3181 transitions. [2023-12-16 04:31:06,467 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3181 transitions. Word has length 159 [2023-12-16 04:31:06,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:06,467 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3181 transitions. [2023-12-16 04:31:06,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:06,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3181 transitions. [2023-12-16 04:31:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:06,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:06,469 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:06,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-16 04:31:06,470 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:06,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:06,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1851810168, now seen corresponding path program 1 times [2023-12-16 04:31:06,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:06,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2210089] [2023-12-16 04:31:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:06,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2210089] [2023-12-16 04:31:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2210089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:06,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:06,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:31:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504032940] [2023-12-16 04:31:06,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:06,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:31:06,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:31:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:31:06,853 INFO L87 Difference]: Start difference. First operand 2677 states and 3181 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:07,224 INFO L93 Difference]: Finished difference Result 5001 states and 5943 transitions. [2023-12-16 04:31:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:31:07,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-16 04:31:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:07,228 INFO L225 Difference]: With dead ends: 5001 [2023-12-16 04:31:07,228 INFO L226 Difference]: Without dead ends: 2837 [2023-12-16 04:31:07,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:31:07,231 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 82 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:07,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 467 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2023-12-16 04:31:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2677. [2023-12-16 04:31:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2450 states have (on average 1.1510204081632653) internal successors, (2820), 2463 states have internal predecessors, (2820), 178 states have call successors, (178), 48 states have call predecessors, (178), 48 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-16 04:31:07,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 3176 transitions. [2023-12-16 04:31:07,368 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 3176 transitions. Word has length 159 [2023-12-16 04:31:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:07,369 INFO L495 AbstractCegarLoop]: Abstraction has 2677 states and 3176 transitions. [2023-12-16 04:31:07,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 3176 transitions. [2023-12-16 04:31:07,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:07,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:07,371 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:07,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-12-16 04:31:07,371 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:07,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash 499051555, now seen corresponding path program 1 times [2023-12-16 04:31:07,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:07,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40004275] [2023-12-16 04:31:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:07,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:07,497 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:07,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:07,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40004275] [2023-12-16 04:31:07,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40004275] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:07,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:07,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:31:07,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703383553] [2023-12-16 04:31:07,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:07,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:31:07,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:07,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:31:07,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:31:07,499 INFO L87 Difference]: Start difference. First operand 2677 states and 3176 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:07,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:07,626 INFO L93 Difference]: Finished difference Result 2721 states and 3233 transitions. [2023-12-16 04:31:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:31:07,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:31:07,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:07,630 INFO L225 Difference]: With dead ends: 2721 [2023-12-16 04:31:07,630 INFO L226 Difference]: Without dead ends: 2719 [2023-12-16 04:31:07,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:31:07,633 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 7 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:07,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 550 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:31:07,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2023-12-16 04:31:07,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2719. [2023-12-16 04:31:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2492 states have (on average 1.1484751203852328) internal successors, (2862), 2505 states have internal predecessors, (2862), 178 states have call successors, (178), 48 states have call predecessors, (178), 48 states have return successors, (178), 165 states have call predecessors, (178), 178 states have call successors, (178) [2023-12-16 04:31:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3218 transitions. [2023-12-16 04:31:07,765 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3218 transitions. Word has length 159 [2023-12-16 04:31:07,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:07,766 INFO L495 AbstractCegarLoop]: Abstraction has 2719 states and 3218 transitions. [2023-12-16 04:31:07,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:07,766 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3218 transitions. [2023-12-16 04:31:07,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:07,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:07,768 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:07,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-16 04:31:07,768 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:07,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:07,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1829177914, now seen corresponding path program 1 times [2023-12-16 04:31:07,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:07,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578295750] [2023-12-16 04:31:07,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:08,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578295750] [2023-12-16 04:31:08,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578295750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:08,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:08,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 04:31:08,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797343109] [2023-12-16 04:31:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:08,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:31:08,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:08,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:31:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:31:08,521 INFO L87 Difference]: Start difference. First operand 2719 states and 3218 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:09,420 INFO L93 Difference]: Finished difference Result 5105 states and 6036 transitions. [2023-12-16 04:31:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 04:31:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-16 04:31:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:09,423 INFO L225 Difference]: With dead ends: 5105 [2023-12-16 04:31:09,423 INFO L226 Difference]: Without dead ends: 2903 [2023-12-16 04:31:09,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:31:09,426 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 335 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:09,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 945 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:31:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2023-12-16 04:31:09,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2691. [2023-12-16 04:31:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2448 states have (on average 1.1454248366013071) internal successors, (2804), 2463 states have internal predecessors, (2804), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (190), 175 states have call predecessors, (190), 190 states have call successors, (190) [2023-12-16 04:31:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 3184 transitions. [2023-12-16 04:31:09,580 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 3184 transitions. Word has length 159 [2023-12-16 04:31:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:09,580 INFO L495 AbstractCegarLoop]: Abstraction has 2691 states and 3184 transitions. [2023-12-16 04:31:09,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 3184 transitions. [2023-12-16 04:31:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:09,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:09,584 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:09,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-12-16 04:31:09,584 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:09,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:09,584 INFO L85 PathProgramCache]: Analyzing trace with hash -770688232, now seen corresponding path program 1 times [2023-12-16 04:31:09,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:09,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953244764] [2023-12-16 04:31:09,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:09,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:10,334 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:10,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:10,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953244764] [2023-12-16 04:31:10,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953244764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:10,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:10,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 04:31:10,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604558001] [2023-12-16 04:31:10,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:10,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 04:31:10,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:10,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 04:31:10,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:31:10,335 INFO L87 Difference]: Start difference. First operand 2691 states and 3184 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:11,231 INFO L93 Difference]: Finished difference Result 4989 states and 5900 transitions. [2023-12-16 04:31:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:31:11,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-16 04:31:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:11,234 INFO L225 Difference]: With dead ends: 4989 [2023-12-16 04:31:11,234 INFO L226 Difference]: Without dead ends: 2797 [2023-12-16 04:31:11,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-12-16 04:31:11,237 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 325 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:11,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 1283 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:31:11,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-12-16 04:31:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2595. [2023-12-16 04:31:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2352 states have (on average 1.1428571428571428) internal successors, (2688), 2367 states have internal predecessors, (2688), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (190), 175 states have call predecessors, (190), 190 states have call successors, (190) [2023-12-16 04:31:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3068 transitions. [2023-12-16 04:31:11,408 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3068 transitions. Word has length 159 [2023-12-16 04:31:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:11,409 INFO L495 AbstractCegarLoop]: Abstraction has 2595 states and 3068 transitions. [2023-12-16 04:31:11,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 13 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3068 transitions. [2023-12-16 04:31:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:11,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:11,411 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:11,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-16 04:31:11,411 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:11,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:11,412 INFO L85 PathProgramCache]: Analyzing trace with hash -400293476, now seen corresponding path program 1 times [2023-12-16 04:31:11,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:11,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130433089] [2023-12-16 04:31:11,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:11,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:11,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130433089] [2023-12-16 04:31:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130433089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:31:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015702239] [2023-12-16 04:31:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:11,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:31:11,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:31:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:31:11,777 INFO L87 Difference]: Start difference. First operand 2595 states and 3068 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:12,331 INFO L93 Difference]: Finished difference Result 4891 states and 5802 transitions. [2023-12-16 04:31:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:31:12,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2023-12-16 04:31:12,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:12,335 INFO L225 Difference]: With dead ends: 4891 [2023-12-16 04:31:12,335 INFO L226 Difference]: Without dead ends: 2777 [2023-12-16 04:31:12,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:31:12,338 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 226 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:12,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1310 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:31:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2023-12-16 04:31:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2427. [2023-12-16 04:31:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2230 states have (on average 1.1452914798206277) internal successors, (2554), 2241 states have internal predecessors, (2554), 154 states have call successors, (154), 42 states have call predecessors, (154), 42 states have return successors, (154), 143 states have call predecessors, (154), 154 states have call successors, (154) [2023-12-16 04:31:12,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 2862 transitions. [2023-12-16 04:31:12,490 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 2862 transitions. Word has length 159 [2023-12-16 04:31:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:12,490 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 2862 transitions. [2023-12-16 04:31:12,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-16 04:31:12,491 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 2862 transitions. [2023-12-16 04:31:12,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 04:31:12,493 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:12,493 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:12,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-12-16 04:31:12,493 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:12,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash -793320486, now seen corresponding path program 1 times [2023-12-16 04:31:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5838810] [2023-12-16 04:31:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:12,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:12,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:31:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:31:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:31:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:31:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:31:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:31:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:31:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:31:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:31:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:31:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:31:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:31:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:31:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:31:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:31:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:31:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:31:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:31:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:31:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 04:31:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:31:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-16 04:31:12,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:31:12,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5838810] [2023-12-16 04:31:12,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5838810] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:31:12,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:31:12,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:31:12,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744499319] [2023-12-16 04:31:12,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:31:12,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:31:12,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:31:12,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:31:12,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:31:12,835 INFO L87 Difference]: Start difference. First operand 2427 states and 2862 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:31:13,156 INFO L93 Difference]: Finished difference Result 4369 states and 5139 transitions. [2023-12-16 04:31:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:31:13,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2023-12-16 04:31:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:31:13,160 INFO L225 Difference]: With dead ends: 4369 [2023-12-16 04:31:13,160 INFO L226 Difference]: Without dead ends: 2423 [2023-12-16 04:31:13,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:31:13,162 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 136 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:31:13,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 534 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:31:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2023-12-16 04:31:13,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2211. [2023-12-16 04:31:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2064 states have (on average 1.1453488372093024) internal successors, (2364), 2071 states have internal predecessors, (2364), 114 states have call successors, (114), 32 states have call predecessors, (114), 32 states have return successors, (114), 107 states have call predecessors, (114), 114 states have call successors, (114) [2023-12-16 04:31:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2592 transitions. [2023-12-16 04:31:13,267 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2592 transitions. Word has length 159 [2023-12-16 04:31:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:31:13,268 INFO L495 AbstractCegarLoop]: Abstraction has 2211 states and 2592 transitions. [2023-12-16 04:31:13,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 04:31:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2592 transitions. [2023-12-16 04:31:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 04:31:13,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:31:13,270 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:31:13,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-16 04:31:13,270 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:31:13,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:31:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1145736066, now seen corresponding path program 1 times [2023-12-16 04:31:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:31:13,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983420168] [2023-12-16 04:31:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:31:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:31:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 04:31:13,992 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:31:13,993 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:13,997 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,000 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,000 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,011 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,012 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,012 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,012 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,012 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,013 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,013 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,013 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,013 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,014 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,015 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,016 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,017 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,017 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,017 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,017 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,017 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,018 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,019 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:31:14,023 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:31:14,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-12-16 04:31:14,023 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 20,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 160 interpolants. [2023-12-16 04:31:14,026 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] [2023-12-16 04:31:14,028 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:31:14,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:31:14 BoogieIcfgContainer [2023-12-16 04:31:14,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:31:14,030 INFO L158 Benchmark]: Toolchain (without parser) took 47234.23ms. Allocated memory was 202.4MB in the beginning and 1.1GB in the end (delta: 934.3MB). Free memory was 164.5MB in the beginning and 597.2MB in the end (delta: -432.7MB). Peak memory consumption was 679.3MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,030 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:31:14,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.29ms. Allocated memory is still 202.4MB. Free memory was 164.1MB in the beginning and 147.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.14ms. Allocated memory is still 202.4MB. Free memory was 147.8MB in the beginning and 143.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,031 INFO L158 Benchmark]: Boogie Preprocessor took 69.30ms. Allocated memory is still 202.4MB. Free memory was 143.7MB in the beginning and 139.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,031 INFO L158 Benchmark]: RCFGBuilder took 549.33ms. Allocated memory is still 202.4MB. Free memory was 139.5MB in the beginning and 109.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,031 INFO L158 Benchmark]: TraceAbstraction took 46304.27ms. Allocated memory was 264.2MB in the beginning and 1.1GB in the end (delta: 872.4MB). Free memory was 231.9MB in the beginning and 597.2MB in the end (delta: -365.3MB). Peak memory consumption was 683.8MB. Max. memory is 8.0GB. [2023-12-16 04:31:14,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 155.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.29ms. Allocated memory is still 202.4MB. Free memory was 164.1MB in the beginning and 147.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.14ms. Allocated memory is still 202.4MB. Free memory was 147.8MB in the beginning and 143.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.30ms. Allocated memory is still 202.4MB. Free memory was 143.7MB in the beginning and 139.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 549.33ms. Allocated memory is still 202.4MB. Free memory was 139.5MB in the beginning and 109.4MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 46304.27ms. Allocated memory was 264.2MB in the beginning and 1.1GB in the end (delta: 872.4MB). Free memory was 231.9MB in the beginning and 597.2MB in the end (delta: -365.3MB). Peak memory consumption was 683.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 162 with TraceHistMax 20,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 160 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.3s, OverallIterations: 43, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7831 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7808 mSDsluCounter, 29049 SdHoareTripleChecker+Invalid, 10.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22800 mSDsCounter, 1051 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20881 IncrementalHoareTripleChecker+Invalid, 21932 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1051 mSolverCounterUnsat, 6249 mSDtfsCounter, 20881 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3404 GetRequests, 2931 SyntacticMatches, 2 SemanticMatches, 471 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3175occurred in iteration=30, InterpolantAutomatonStates: 437, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 42 MinimizatonAttempts, 12542 StatesRemovedByMinimization, 40 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 20.5s InterpolantComputationTime, 7289 NumberOfCodeBlocks, 7289 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 7393 ConstructedInterpolants, 0 QuantifiedInterpolants, 26139 SizeOfPredicates, 56 NumberOfNonLiveVariables, 2318 ConjunctsInSsa, 130 ConjunctsInUnsatCore, 48 InterpolantComputations, 42 PerfectInterpolantSequences, 36321/36480 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