/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-62.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:45:38,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:45:39,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:45:39,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:45:39,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:45:39,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:45:39,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:45:39,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:45:39,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:45:39,056 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:45:39,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:45:39,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:45:39,057 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:45:39,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:45:39,058 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:45:39,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:45:39,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:45:39,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:45:39,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:45:39,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:45:39,061 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:45:39,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:45:39,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:45:39,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:45:39,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:45:39,062 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:45:39,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:45:39,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:45:39,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:45:39,063 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:45:39,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:45:39,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:45:39,064 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:45:39,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:45:39,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:45:39,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:45:39,276 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:45:39,276 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:45:39,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-62.i [2023-12-15 21:45:40,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:45:40,496 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:45:40,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-62.i [2023-12-15 21:45:40,502 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c7299580/9837b0a18ad74532b0a75ab91745db04/FLAG1c073f8a4 [2023-12-15 21:45:40,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c7299580/9837b0a18ad74532b0a75ab91745db04 [2023-12-15 21:45:40,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:45:40,520 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:45:40,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:45:40,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:45:40,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:45:40,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,530 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a795fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40, skipping insertion in model container [2023-12-15 21:45:40,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:45:40,678 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-sp_file-62.i[917,930] [2023-12-15 21:45:40,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:45:40,746 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:45:40,758 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-sp_file-62.i[917,930] [2023-12-15 21:45:40,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:45:40,807 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:45:40,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40 WrapperNode [2023-12-15 21:45:40,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:45:40,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:45:40,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:45:40,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:45:40,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,872 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 332 [2023-12-15 21:45:40,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:45:40,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:45:40,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:45:40,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:45:40,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,901 INFO L175 MemorySlicer]: Split 87 memory accesses to 2 slices as follows [2, 85]. 98 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 14 writes are split as follows [0, 14]. [2023-12-15 21:45:40,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,916 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:45:40,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:45:40,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:45:40,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:45:40,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (1/1) ... [2023-12-15 21:45:40,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:45:40,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:45:40,957 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) [2023-12-15 21:45:40,965 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 [2023-12-15 21:45:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:45:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:45:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:45:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:45:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:45:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:45:40,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:45:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:45:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:45:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:45:40,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:45:41,056 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:45:41,058 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:45:41,298 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:45:41,337 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:45:41,337 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:45:41,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:45:41 BoogieIcfgContainer [2023-12-15 21:45:41,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:45:41,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:45:41,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:45:41,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:45:41,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:45:40" (1/3) ... [2023-12-15 21:45:41,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bcc5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:45:41, skipping insertion in model container [2023-12-15 21:45:41,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:40" (2/3) ... [2023-12-15 21:45:41,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35bcc5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:45:41, skipping insertion in model container [2023-12-15 21:45:41,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:45:41" (3/3) ... [2023-12-15 21:45:41,342 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-62.i [2023-12-15 21:45:41,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:45:41,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:45:41,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:45:41,389 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;@f23d032, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:45:41,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:45:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 21:45:41,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:41,399 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:41,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:41,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -324092677, now seen corresponding path program 1 times [2023-12-15 21:45:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:41,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674272086] [2023-12-15 21:45:41,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:41,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:41,638 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:41,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674272086] [2023-12-15 21:45:41,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674272086] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:41,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:41,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:45:41,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485354894] [2023-12-15 21:45:41,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:41,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:45:41,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:41,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:45:41,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:45:41,689 INFO L87 Difference]: Start difference. First operand has 66 states, 55 states have (on average 1.4727272727272727) internal successors, (81), 56 states have internal predecessors, (81), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:41,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:41,725 INFO L93 Difference]: Finished difference Result 129 states and 200 transitions. [2023-12-15 21:45:41,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:45:41,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2023-12-15 21:45:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:41,735 INFO L225 Difference]: With dead ends: 129 [2023-12-15 21:45:41,735 INFO L226 Difference]: Without dead ends: 64 [2023-12-15 21:45:41,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:45:41,742 INFO L413 NwaCegarLoop]: 88 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, 88 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 [2023-12-15 21:45:41,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:45:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-15 21:45:41,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-15 21:45:41,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:41,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 92 transitions. [2023-12-15 21:45:41,781 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 92 transitions. Word has length 68 [2023-12-15 21:45:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:41,782 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 92 transitions. [2023-12-15 21:45:41,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2023-12-15 21:45:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 21:45:41,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:41,788 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:41,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:45:41,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:41,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:41,789 INFO L85 PathProgramCache]: Analyzing trace with hash -384552725, now seen corresponding path program 1 times [2023-12-15 21:45:41,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:41,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289499119] [2023-12-15 21:45:41,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:41,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:42,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:42,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289499119] [2023-12-15 21:45:42,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289499119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:42,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:42,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:45:42,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330345898] [2023-12-15 21:45:42,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:42,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:45:42,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:42,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:45:42,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:45:42,036 INFO L87 Difference]: Start difference. First operand 64 states and 92 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:42,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:42,098 INFO L93 Difference]: Finished difference Result 135 states and 194 transitions. [2023-12-15 21:45:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:45:42,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2023-12-15 21:45:42,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:42,103 INFO L225 Difference]: With dead ends: 135 [2023-12-15 21:45:42,103 INFO L226 Difference]: Without dead ends: 72 [2023-12-15 21:45:42,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:45:42,105 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 12 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:42,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 252 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:45:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-15 21:45:42,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 66. [2023-12-15 21:45:42,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 56 states have internal predecessors, (78), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:42,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2023-12-15 21:45:42,116 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 68 [2023-12-15 21:45:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:42,117 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2023-12-15 21:45:42,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2023-12-15 21:45:42,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 21:45:42,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:42,118 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:42,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:45:42,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:42,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash -327294423, now seen corresponding path program 1 times [2023-12-15 21:45:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182134463] [2023-12-15 21:45:42,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:42,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:42,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:42,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:42,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182134463] [2023-12-15 21:45:42,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182134463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:42,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:42,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:45:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979443432] [2023-12-15 21:45:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:42,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:45:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:45:42,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:45:42,247 INFO L87 Difference]: Start difference. First operand 66 states and 94 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:42,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:42,280 INFO L93 Difference]: Finished difference Result 135 states and 192 transitions. [2023-12-15 21:45:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:45:42,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2023-12-15 21:45:42,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:42,284 INFO L225 Difference]: With dead ends: 135 [2023-12-15 21:45:42,284 INFO L226 Difference]: Without dead ends: 70 [2023-12-15 21:45:42,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:45:42,286 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 3 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:42,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 253 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:45:42,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-15 21:45:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-12-15 21:45:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 58 states have internal predecessors, (80), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 96 transitions. [2023-12-15 21:45:42,291 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 96 transitions. Word has length 68 [2023-12-15 21:45:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:42,292 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 96 transitions. [2023-12-15 21:45:42,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:42,292 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 96 transitions. [2023-12-15 21:45:42,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 21:45:42,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:42,293 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:42,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:45:42,293 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:42,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:42,294 INFO L85 PathProgramCache]: Analyzing trace with hash -327234841, now seen corresponding path program 1 times [2023-12-15 21:45:42,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:42,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120232485] [2023-12-15 21:45:42,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:42,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:42,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120232485] [2023-12-15 21:45:42,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120232485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:42,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:42,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 21:45:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127733012] [2023-12-15 21:45:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:42,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:45:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:42,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:45:42,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:45:42,856 INFO L87 Difference]: Start difference. First operand 68 states and 96 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:43,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:43,031 INFO L93 Difference]: Finished difference Result 171 states and 240 transitions. [2023-12-15 21:45:43,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:45:43,032 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 68 [2023-12-15 21:45:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:43,033 INFO L225 Difference]: With dead ends: 171 [2023-12-15 21:45:43,033 INFO L226 Difference]: Without dead ends: 104 [2023-12-15 21:45:43,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:45:43,041 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 174 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:43,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 168 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:45:43,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-15 21:45:43,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 70. [2023-12-15 21:45:43,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 60 states have (on average 1.3666666666666667) internal successors, (82), 60 states have internal predecessors, (82), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2023-12-15 21:45:43,053 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 68 [2023-12-15 21:45:43,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:43,054 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2023-12-15 21:45:43,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2023-12-15 21:45:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 21:45:43,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:43,055 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:43,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 21:45:43,055 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:43,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash 948488268, now seen corresponding path program 1 times [2023-12-15 21:45:43,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:43,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766360436] [2023-12-15 21:45:43,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:43,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:43,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766360436] [2023-12-15 21:45:43,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766360436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:43,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:43,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:45:43,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884163588] [2023-12-15 21:45:43,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:43,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:45:43,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:45:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:45:43,344 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:43,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:43,553 INFO L93 Difference]: Finished difference Result 205 states and 286 transitions. [2023-12-15 21:45:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:45:43,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 70 [2023-12-15 21:45:43,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:43,555 INFO L225 Difference]: With dead ends: 205 [2023-12-15 21:45:43,555 INFO L226 Difference]: Without dead ends: 136 [2023-12-15 21:45:43,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-12-15 21:45:43,559 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 339 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:43,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 369 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:45:43,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-12-15 21:45:43,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 80. [2023-12-15 21:45:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 70 states have internal predecessors, (96), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:43,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-12-15 21:45:43,572 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 70 [2023-12-15 21:45:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:43,572 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-12-15 21:45:43,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-12-15 21:45:43,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 21:45:43,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:43,577 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:43,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 21:45:43,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:43,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:43,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1383606130, now seen corresponding path program 1 times [2023-12-15 21:45:43,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:43,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471955381] [2023-12-15 21:45:43,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:43,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,087 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:44,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:44,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471955381] [2023-12-15 21:45:44,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471955381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:44,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:44,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 21:45:44,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028025697] [2023-12-15 21:45:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:44,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:45:44,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:44,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:45:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:45:44,090 INFO L87 Difference]: Start difference. First operand 80 states and 112 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:44,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:44,254 INFO L93 Difference]: Finished difference Result 160 states and 224 transitions. [2023-12-15 21:45:44,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:45:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2023-12-15 21:45:44,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:44,256 INFO L225 Difference]: With dead ends: 160 [2023-12-15 21:45:44,256 INFO L226 Difference]: Without dead ends: 81 [2023-12-15 21:45:44,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:45:44,257 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 192 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:44,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 105 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:45:44,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-15 21:45:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 78. [2023-12-15 21:45:44,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 68 states have internal predecessors, (93), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2023-12-15 21:45:44,263 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 70 [2023-12-15 21:45:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:44,264 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2023-12-15 21:45:44,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2023-12-15 21:45:44,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 21:45:44,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:44,265 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:44,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 21:45:44,265 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:44,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:44,265 INFO L85 PathProgramCache]: Analyzing trace with hash -628950047, now seen corresponding path program 1 times [2023-12-15 21:45:44,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:44,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642595435] [2023-12-15 21:45:44,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:44,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:44,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:44,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642595435] [2023-12-15 21:45:44,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642595435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:44,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:44,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:45:44,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2786879] [2023-12-15 21:45:44,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:44,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:45:44,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:44,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:45:44,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:45:44,425 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:44,459 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2023-12-15 21:45:44,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:45:44,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2023-12-15 21:45:44,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:44,460 INFO L225 Difference]: With dead ends: 171 [2023-12-15 21:45:44,460 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:45:44,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:45:44,461 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 60 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:44,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 319 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:45:44,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:45:44,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 81. [2023-12-15 21:45:44,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 71 states have (on average 1.352112676056338) internal successors, (96), 71 states have internal predecessors, (96), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2023-12-15 21:45:44,467 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 72 [2023-12-15 21:45:44,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:44,467 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2023-12-15 21:45:44,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:44,467 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2023-12-15 21:45:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 21:45:44,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:44,468 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:44,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 21:45:44,468 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:44,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:44,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1455457008, now seen corresponding path program 1 times [2023-12-15 21:45:44,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:44,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282537250] [2023-12-15 21:45:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:44,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:44,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:44,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282537250] [2023-12-15 21:45:44,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282537250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:44,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:44,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:45:44,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146131235] [2023-12-15 21:45:44,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:44,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:45:44,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:44,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:45:44,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:45:44,847 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:45,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:45,090 INFO L93 Difference]: Finished difference Result 221 states and 302 transitions. [2023-12-15 21:45:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:45:45,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-15 21:45:45,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:45,092 INFO L225 Difference]: With dead ends: 221 [2023-12-15 21:45:45,092 INFO L226 Difference]: Without dead ends: 141 [2023-12-15 21:45:45,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:45:45,094 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 413 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:45,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 197 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:45:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-15 21:45:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 81. [2023-12-15 21:45:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:45,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 111 transitions. [2023-12-15 21:45:45,104 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 111 transitions. Word has length 72 [2023-12-15 21:45:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:45,104 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 111 transitions. [2023-12-15 21:45:45,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 111 transitions. [2023-12-15 21:45:45,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 21:45:45,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:45,105 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:45,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 21:45:45,105 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:45,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:45,105 INFO L85 PathProgramCache]: Analyzing trace with hash 94187031, now seen corresponding path program 1 times [2023-12-15 21:45:45,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:45,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827236243] [2023-12-15 21:45:45,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:45,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:45,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:45,403 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:45,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:45,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827236243] [2023-12-15 21:45:45,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827236243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:45,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:45,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 21:45:45,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883322335] [2023-12-15 21:45:45,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:45,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:45:45,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:45,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:45:45,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:45:45,404 INFO L87 Difference]: Start difference. First operand 81 states and 111 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:45,764 INFO L93 Difference]: Finished difference Result 229 states and 311 transitions. [2023-12-15 21:45:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:45:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-15 21:45:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:45,765 INFO L225 Difference]: With dead ends: 229 [2023-12-15 21:45:45,765 INFO L226 Difference]: Without dead ends: 149 [2023-12-15 21:45:45,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-12-15 21:45:45,767 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 280 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:45,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 370 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:45:45,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-15 21:45:45,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 84. [2023-12-15 21:45:45,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 74 states have (on average 1.337837837837838) internal successors, (99), 74 states have internal predecessors, (99), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 115 transitions. [2023-12-15 21:45:45,781 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 115 transitions. Word has length 72 [2023-12-15 21:45:45,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:45,782 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 115 transitions. [2023-12-15 21:45:45,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 115 transitions. [2023-12-15 21:45:45,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-15 21:45:45,782 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:45,782 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:45,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 21:45:45,783 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:45,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:45,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1419567270, now seen corresponding path program 1 times [2023-12-15 21:45:45,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:45,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420079212] [2023-12-15 21:45:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:46,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:46,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420079212] [2023-12-15 21:45:46,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420079212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:46,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:46,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:45:46,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046807891] [2023-12-15 21:45:46,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:46,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:45:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:45:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:45:46,154 INFO L87 Difference]: Start difference. First operand 84 states and 115 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:46,456 INFO L93 Difference]: Finished difference Result 235 states and 319 transitions. [2023-12-15 21:45:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:45:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2023-12-15 21:45:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:46,458 INFO L225 Difference]: With dead ends: 235 [2023-12-15 21:45:46,458 INFO L226 Difference]: Without dead ends: 152 [2023-12-15 21:45:46,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:45:46,458 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 159 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:46,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 347 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:45:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-15 21:45:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 87. [2023-12-15 21:45:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 77 states have internal predecessors, (102), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 118 transitions. [2023-12-15 21:45:46,468 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 118 transitions. Word has length 72 [2023-12-15 21:45:46,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:46,468 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 118 transitions. [2023-12-15 21:45:46,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:45:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 118 transitions. [2023-12-15 21:45:46,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 21:45:46,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:46,469 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:46,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 21:45:46,470 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:46,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1469107187, now seen corresponding path program 1 times [2023-12-15 21:45:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832124838] [2023-12-15 21:45:46,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:46,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:46,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:45:46,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:46,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832124838] [2023-12-15 21:45:46,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832124838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:45:46,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:45:46,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:45:46,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80991041] [2023-12-15 21:45:46,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:45:46,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:45:46,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:45:46,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:45:46,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:45:46,555 INFO L87 Difference]: Start difference. First operand 87 states and 118 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:46,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:45:46,616 INFO L93 Difference]: Finished difference Result 203 states and 276 transitions. [2023-12-15 21:45:46,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 21:45:46,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 74 [2023-12-15 21:45:46,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:45:46,617 INFO L225 Difference]: With dead ends: 203 [2023-12-15 21:45:46,617 INFO L226 Difference]: Without dead ends: 117 [2023-12-15 21:45:46,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:45:46,617 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 80 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:45:46,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 410 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:45:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-12-15 21:45:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 88. [2023-12-15 21:45:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 78 states have internal predecessors, (103), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-12-15 21:45:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2023-12-15 21:45:46,625 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 74 [2023-12-15 21:45:46,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:45:46,625 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2023-12-15 21:45:46,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:45:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2023-12-15 21:45:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 21:45:46,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:45:46,626 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:45:46,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 21:45:46,626 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:45:46,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:45:46,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1379444614, now seen corresponding path program 1 times [2023-12-15 21:45:46,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:45:46,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306139079] [2023-12-15 21:45:46,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:46,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:45:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:45:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:45:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:45:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:45:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:45:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:45:47,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:45:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:45:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-15 21:45:47,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:45:47,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306139079] [2023-12-15 21:45:47,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306139079] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:45:47,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181180373] [2023-12-15 21:45:47,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:45:47,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:45:47,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:45:47,608 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) [2023-12-15 21:45:47,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:45:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:45:47,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 73 conjunts are in the unsatisfiable core [2023-12-15 21:45:47,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:45:48,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-15 21:45:49,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:45:50,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2023-12-15 21:45:50,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 43 [2023-12-15 21:45:50,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 50 [2023-12-15 21:45:50,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:45:50,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 60 [2023-12-15 21:45:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 16 proven. 51 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-15 21:45:51,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:46:37,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181180373] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:46:37,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:46:37,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 30 [2023-12-15 21:46:37,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248858094] [2023-12-15 21:46:37,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:46:37,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-15 21:46:37,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:37,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-15 21:46:37,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1574, Unknown=7, NotChecked=0, Total=1722 [2023-12-15 21:46:37,516 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 30 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 7 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-15 21:46:42,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:42,840 INFO L93 Difference]: Finished difference Result 730 states and 941 transitions. [2023-12-15 21:46:42,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-15 21:46:42,841 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 7 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 74 [2023-12-15 21:46:42,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:42,844 INFO L225 Difference]: With dead ends: 730 [2023-12-15 21:46:42,844 INFO L226 Difference]: Without dead ends: 643 [2023-12-15 21:46:42,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 90 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 50.8s TimeCoverageRelationStatistics Valid=969, Invalid=6164, Unknown=7, NotChecked=0, Total=7140 [2023-12-15 21:46:42,846 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2710 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:42,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 1273 Invalid, 1968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 21:46:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-12-15 21:46:42,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 278. [2023-12-15 21:46:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 251 states have (on average 1.2868525896414342) internal successors, (323), 252 states have internal predecessors, (323), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 363 transitions. [2023-12-15 21:46:42,869 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 363 transitions. Word has length 74 [2023-12-15 21:46:42,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:42,870 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 363 transitions. [2023-12-15 21:46:42,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 7 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-15 21:46:42,870 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 363 transitions. [2023-12-15 21:46:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 21:46:42,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:42,870 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:42,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:46:43,076 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,SelfDestructingSolverStorable11 [2023-12-15 21:46:43,076 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:43,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:43,076 INFO L85 PathProgramCache]: Analyzing trace with hash 810721787, now seen corresponding path program 1 times [2023-12-15 21:46:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287998547] [2023-12-15 21:46:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:43,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:46:43,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:43,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287998547] [2023-12-15 21:46:43,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287998547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:43,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:43,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 21:46:43,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321569507] [2023-12-15 21:46:43,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:43,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:46:43,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:43,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:46:43,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:46:43,315 INFO L87 Difference]: Start difference. First operand 278 states and 363 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:46:43,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:43,551 INFO L93 Difference]: Finished difference Result 700 states and 910 transitions. [2023-12-15 21:46:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:46:43,552 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 74 [2023-12-15 21:46:43,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:43,554 INFO L225 Difference]: With dead ends: 700 [2023-12-15 21:46:43,554 INFO L226 Difference]: Without dead ends: 417 [2023-12-15 21:46:43,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:46:43,555 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 166 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:43,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 291 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:46:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-15 21:46:43,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 275. [2023-12-15 21:46:43,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 248 states have (on average 1.2701612903225807) internal successors, (315), 249 states have internal predecessors, (315), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:43,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 355 transitions. [2023-12-15 21:46:43,577 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 355 transitions. Word has length 74 [2023-12-15 21:46:43,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:43,578 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 355 transitions. [2023-12-15 21:46:43,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-15 21:46:43,578 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 355 transitions. [2023-12-15 21:46:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 21:46:43,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:43,578 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 21:46:43,579 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:43,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:43,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1104155446, now seen corresponding path program 1 times [2023-12-15 21:46:43,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:43,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899078175] [2023-12-15 21:46:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:43,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:43,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:43,868 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-15 21:46:43,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:43,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899078175] [2023-12-15 21:46:43,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899078175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:43,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:43,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 21:46:43,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210922652] [2023-12-15 21:46:43,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:43,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:46:43,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:46:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:46:43,870 INFO L87 Difference]: Start difference. First operand 275 states and 355 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:46:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:44,193 INFO L93 Difference]: Finished difference Result 736 states and 954 transitions. [2023-12-15 21:46:44,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 21:46:44,194 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-15 21:46:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:44,196 INFO L225 Difference]: With dead ends: 736 [2023-12-15 21:46:44,196 INFO L226 Difference]: Without dead ends: 462 [2023-12-15 21:46:44,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2023-12-15 21:46:44,197 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 245 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 270 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 [2023-12-15 21:46:44,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 270 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:46:44,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-12-15 21:46:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 295. [2023-12-15 21:46:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 268 states have (on average 1.2649253731343284) internal successors, (339), 269 states have internal predecessors, (339), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 21:46:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 379 transitions. [2023-12-15 21:46:44,217 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 379 transitions. Word has length 74 [2023-12-15 21:46:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:44,217 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 379 transitions. [2023-12-15 21:46:44,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 21:46:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 379 transitions. [2023-12-15 21:46:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 21:46:44,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:44,218 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:44,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 21:46:44,218 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:44,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -93038196, now seen corresponding path program 1 times [2023-12-15 21:46:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249216855] [2023-12-15 21:46:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:46:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:46:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:46:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:46:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:46:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:46:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:46:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:46:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,209 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-15 21:46:45,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:45,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249216855] [2023-12-15 21:46:45,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249216855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:46:45,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112591399] [2023-12-15 21:46:45,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:45,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:45,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:45,224 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) [2023-12-15 21:46:45,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:46:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:45,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-15 21:46:45,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:46,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 49 [2023-12-15 21:46:46,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:46,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:46,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:46,159 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-12-15 21:46:46,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 62 [2023-12-15 21:46:46,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:46,509 INFO L349 Elim1Store]: treesize reduction 8, result has 89.0 percent of original size [2023-12-15 21:46:46,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 102 treesize of output 122 [2023-12-15 21:46:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-15 21:46:46,868 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-15 21:46:51,239 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 [2023-12-15 21:46:51,240 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:46:51,293 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:46:51,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 21:46:51,494 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,SelfDestructingSolverStorable14 [2023-12-15 21:46:51,494 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 75 with TraceHistMax 8,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 27 known predicates. [2023-12-15 21:46:51,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:51,499 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:46:51,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:46:51 BoogieIcfgContainer [2023-12-15 21:46:51,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:46:51,501 INFO L158 Benchmark]: Toolchain (without parser) took 70980.73ms. Allocated memory was 227.5MB in the beginning and 496.0MB in the end (delta: 268.4MB). Free memory was 183.7MB in the beginning and 168.8MB in the end (delta: 14.9MB). Peak memory consumption was 284.9MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,501 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:46:51,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.08ms. Allocated memory is still 227.5MB. Free memory was 183.3MB in the beginning and 169.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.28ms. Allocated memory is still 227.5MB. Free memory was 169.1MB in the beginning and 166.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,501 INFO L158 Benchmark]: Boogie Preprocessor took 50.23ms. Allocated memory is still 227.5MB. Free memory was 166.3MB in the beginning and 162.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,501 INFO L158 Benchmark]: RCFGBuilder took 413.41ms. Allocated memory is still 227.5MB. Free memory was 162.8MB in the beginning and 191.3MB in the end (delta: -28.5MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,502 INFO L158 Benchmark]: TraceAbstraction took 70161.80ms. Allocated memory was 227.5MB in the beginning and 496.0MB in the end (delta: 268.4MB). Free memory was 190.3MB in the beginning and 168.8MB in the end (delta: 21.5MB). Peak memory consumption was 290.4MB. Max. memory is 8.0GB. [2023-12-15 21:46:51,502 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.08ms. Allocated memory is still 227.5MB. Free memory was 183.3MB in the beginning and 169.1MB in the end (delta: 14.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.28ms. Allocated memory is still 227.5MB. Free memory was 169.1MB in the beginning and 166.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.23ms. Allocated memory is still 227.5MB. Free memory was 166.3MB in the beginning and 162.8MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 413.41ms. Allocated memory is still 227.5MB. Free memory was 162.8MB in the beginning and 191.3MB in the end (delta: -28.5MB). Peak memory consumption was 28.0MB. Max. memory is 8.0GB. * TraceAbstraction took 70161.80ms. Allocated memory was 227.5MB in the beginning and 496.0MB in the end (delta: 268.4MB). Free memory was 190.3MB in the beginning and 168.8MB in the end (delta: 21.5MB). Peak memory consumption was 290.4MB. 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 75 with TraceHistMax 8,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 27 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.1s, OverallIterations: 15, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4838 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4833 mSDsluCounter, 4712 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3590 mSDsCounter, 320 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3813 IncrementalHoareTripleChecker+Invalid, 4133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 320 mSolverCounterUnsat, 1122 mSDtfsCounter, 3813 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 516 GetRequests, 326 SyntacticMatches, 4 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 51.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=14, InterpolantAutomatonStates: 138, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 1007 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 54.0s InterpolantComputationTime, 1070 NumberOfCodeBlocks, 1070 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1055 ConstructedInterpolants, 13 QuantifiedInterpolants, 9346 SizeOfPredicates, 25 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 1626/1680 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