/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_fillercode_fillercodestructure_filler-pe-co_file-73.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:16:08,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:16:08,662 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 20:16:08,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:16:08,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:16:08,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:16:08,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:16:08,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:16:08,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:16:08,686 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:16:08,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:16:08,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:16:08,687 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:16:08,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:16:08,688 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:16:08,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:16:08,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:16:08,688 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:16:08,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:16:08,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:16:08,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:16:08,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:16:08,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:16:08,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:16:08,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:16:08,691 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:16:08,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:16:08,692 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:16:08,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:16:08,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:16:08,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:16:08,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:16:08,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:16:08,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:16:08,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:16:08,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:16:08,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:16:08,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:16:08,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:16:08,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:16:08,695 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:16:08,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:16:08,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:16:08,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:16:08,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:16:08,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:16:08,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:16:08,904 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:16:08,906 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:16:08,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-73.i [2023-12-15 20:16:10,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:16:10,309 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:16:10,309 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-73.i [2023-12-15 20:16:10,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ce3628f/b11319bace3c4e91980a779481bb3727/FLAG01a4a63bb [2023-12-15 20:16:10,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0ce3628f/b11319bace3c4e91980a779481bb3727 [2023-12-15 20:16:10,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:16:10,332 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:16:10,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:16:10,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:16:10,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:16:10,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcac665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10, skipping insertion in model container [2023-12-15 20:16:10,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,383 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:16:10,515 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_fillercode_fillercodestructure_filler-pe-co_file-73.i[919,932] [2023-12-15 20:16:10,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:16:10,607 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:16:10,616 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_fillercode_fillercodestructure_filler-pe-co_file-73.i[919,932] [2023-12-15 20:16:10,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:16:10,680 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:16:10,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10 WrapperNode [2023-12-15 20:16:10,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:16:10,682 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:16:10,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:16:10,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:16:10,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,756 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 264 [2023-12-15 20:16:10,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:16:10,757 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:16:10,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:16:10,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:16:10,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,779 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,796 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 20:16:10,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:16:10,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:16:10,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:16:10,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:16:10,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (1/1) ... [2023-12-15 20:16:10,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:16:10,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:16:10,849 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 20:16:10,873 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 20:16:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:16:10,886 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:16:10,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:16:10,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:16:10,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:16:10,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:16:10,960 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:16:10,962 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:16:11,321 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:16:11,350 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:16:11,351 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:16:11,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:16:11 BoogieIcfgContainer [2023-12-15 20:16:11,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:16:11,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:16:11,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:16:11,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:16:11,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:16:10" (1/3) ... [2023-12-15 20:16:11,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e5cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:16:11, skipping insertion in model container [2023-12-15 20:16:11,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:16:10" (2/3) ... [2023-12-15 20:16:11,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129e5cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:16:11, skipping insertion in model container [2023-12-15 20:16:11,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:16:11" (3/3) ... [2023-12-15 20:16:11,359 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-73.i [2023-12-15 20:16:11,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:16:11,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:16:11,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:16:11,433 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;@7c68e974, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:16:11,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:16:11,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 63 states have (on average 1.492063492063492) internal successors, (94), 64 states have internal predecessors, (94), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-15 20:16:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-15 20:16:11,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:11,455 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:11,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:11,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:11,460 INFO L85 PathProgramCache]: Analyzing trace with hash 803683458, now seen corresponding path program 1 times [2023-12-15 20:16:11,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710122114] [2023-12-15 20:16:11,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:11,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:11,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:12,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:12,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-15 20:16:12,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:12,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710122114] [2023-12-15 20:16:12,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710122114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:16:12,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:16:12,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:16:12,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829249822] [2023-12-15 20:16:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:16:12,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:16:12,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:12,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:16:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:16:12,107 INFO L87 Difference]: Start difference. First operand has 104 states, 63 states have (on average 1.492063492063492) internal successors, (94), 64 states have internal predecessors, (94), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-15 20:16:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:12,160 INFO L93 Difference]: Finished difference Result 205 states and 376 transitions. [2023-12-15 20:16:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:16:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) Word has length 238 [2023-12-15 20:16:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:12,169 INFO L225 Difference]: With dead ends: 205 [2023-12-15 20:16:12,169 INFO L226 Difference]: Without dead ends: 102 [2023-12-15 20:16:12,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 116 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 20:16:12,177 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:12,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:16:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-15 20:16:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2023-12-15 20:16:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-12-15 20:16:12,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2023-12-15 20:16:12,227 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 238 [2023-12-15 20:16:12,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:12,228 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2023-12-15 20:16:12,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-15 20:16:12,228 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2023-12-15 20:16:12,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-15 20:16:12,233 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:12,233 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:12,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 20:16:12,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:12,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:12,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1516549118, now seen corresponding path program 1 times [2023-12-15 20:16:12,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:12,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076445548] [2023-12-15 20:16:12,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:12,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-15 20:16:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:12,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076445548] [2023-12-15 20:16:12,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076445548] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:16:12,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:16:12,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:16:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664776064] [2023-12-15 20:16:12,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:16:12,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:16:12,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:12,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:16:12,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:16:12,652 INFO L87 Difference]: Start difference. First operand 102 states and 164 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:12,749 INFO L93 Difference]: Finished difference Result 261 states and 416 transitions. [2023-12-15 20:16:12,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:16:12,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 238 [2023-12-15 20:16:12,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:12,757 INFO L225 Difference]: With dead ends: 261 [2023-12-15 20:16:12,757 INFO L226 Difference]: Without dead ends: 160 [2023-12-15 20:16:12,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:16:12,762 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 86 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:12,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 367 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:16:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-15 20:16:12,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2023-12-15 20:16:12,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 95 states have (on average 1.3789473684210527) internal successors, (131), 96 states have internal predecessors, (131), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 20:16:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 249 transitions. [2023-12-15 20:16:12,816 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 249 transitions. Word has length 238 [2023-12-15 20:16:12,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:12,817 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 249 transitions. [2023-12-15 20:16:12,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:12,817 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 249 transitions. [2023-12-15 20:16:12,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-12-15 20:16:12,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:12,826 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:12,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 20:16:12,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:12,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1171449989, now seen corresponding path program 1 times [2023-12-15 20:16:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490571941] [2023-12-15 20:16:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:12,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:13,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-15 20:16:13,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:13,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490571941] [2023-12-15 20:16:13,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490571941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:16:13,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:16:13,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:16:13,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268517916] [2023-12-15 20:16:13,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:16:13,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:16:13,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:16:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:16:13,242 INFO L87 Difference]: Start difference. First operand 157 states and 249 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:13,289 INFO L93 Difference]: Finished difference Result 315 states and 501 transitions. [2023-12-15 20:16:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:16:13,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 239 [2023-12-15 20:16:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:13,294 INFO L225 Difference]: With dead ends: 315 [2023-12-15 20:16:13,294 INFO L226 Difference]: Without dead ends: 159 [2023-12-15 20:16:13,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:16:13,300 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:16:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-15 20:16:13,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-12-15 20:16:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 98 states have internal predecessors, (133), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-15 20:16:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 251 transitions. [2023-12-15 20:16:13,329 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 251 transitions. Word has length 239 [2023-12-15 20:16:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:13,330 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 251 transitions. [2023-12-15 20:16:13,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 251 transitions. [2023-12-15 20:16:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-15 20:16:13,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:13,336 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 20:16:13,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:13,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:13,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1898733001, now seen corresponding path program 1 times [2023-12-15 20:16:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054567756] [2023-12-15 20:16:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:13,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:13,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:13,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:13,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2023-12-15 20:16:13,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:13,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054567756] [2023-12-15 20:16:13,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054567756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:16:13,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:16:13,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 20:16:13,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601145458] [2023-12-15 20:16:13,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:16:13,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 20:16:13,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 20:16:13,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:16:13,862 INFO L87 Difference]: Start difference. First operand 159 states and 251 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:14,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:14,247 INFO L93 Difference]: Finished difference Result 508 states and 783 transitions. [2023-12-15 20:16:14,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 20:16:14,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 240 [2023-12-15 20:16:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:14,253 INFO L225 Difference]: With dead ends: 508 [2023-12-15 20:16:14,253 INFO L226 Difference]: Without dead ends: 350 [2023-12-15 20:16:14,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 20:16:14,259 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 207 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:14,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 540 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 20:16:14,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-15 20:16:14,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 261. [2023-12-15 20:16:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 175 states have (on average 1.4114285714285715) internal successors, (247), 178 states have internal predecessors, (247), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 78 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-15 20:16:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 409 transitions. [2023-12-15 20:16:14,299 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 409 transitions. Word has length 240 [2023-12-15 20:16:14,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:14,301 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 409 transitions. [2023-12-15 20:16:14,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-12-15 20:16:14,302 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 409 transitions. [2023-12-15 20:16:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-15 20:16:14,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:14,304 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:14,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 20:16:14,305 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:14,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:14,305 INFO L85 PathProgramCache]: Analyzing trace with hash -580602763, now seen corresponding path program 1 times [2023-12-15 20:16:14,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:14,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79047123] [2023-12-15 20:16:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:14,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:15,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:15,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 27 proven. 84 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-15 20:16:15,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:15,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79047123] [2023-12-15 20:16:15,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79047123] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 20:16:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044800767] [2023-12-15 20:16:15,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:15,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:16:15,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:16:15,692 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 20:16:15,700 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 20:16:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:15,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-15 20:16:15,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:16:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1063 proven. 84 refuted. 0 times theorem prover too weak. 1665 trivial. 0 not checked. [2023-12-15 20:16:16,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:16:18,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 27 proven. 84 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2023-12-15 20:16:18,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044800767] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:16:18,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 20:16:18,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 15 [2023-12-15 20:16:18,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145589100] [2023-12-15 20:16:18,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 20:16:18,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 20:16:18,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:18,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 20:16:18,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-15 20:16:18,679 INFO L87 Difference]: Start difference. First operand 261 states and 409 transitions. Second operand has 15 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (114), 3 states have call predecessors, (114), 6 states have return successors, (114), 5 states have call predecessors, (114), 5 states have call successors, (114) [2023-12-15 20:16:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:20,647 INFO L93 Difference]: Finished difference Result 1435 states and 2218 transitions. [2023-12-15 20:16:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 20:16:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (114), 3 states have call predecessors, (114), 6 states have return successors, (114), 5 states have call predecessors, (114), 5 states have call successors, (114) Word has length 240 [2023-12-15 20:16:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:20,652 INFO L225 Difference]: With dead ends: 1435 [2023-12-15 20:16:20,652 INFO L226 Difference]: Without dead ends: 1175 [2023-12-15 20:16:20,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=871, Unknown=0, NotChecked=0, Total=1190 [2023-12-15 20:16:20,654 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 593 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 1417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:20,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1145 Invalid, 1417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 20:16:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2023-12-15 20:16:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 759. [2023-12-15 20:16:20,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 507 states have (on average 1.3925049309664694) internal successors, (706), 517 states have internal predecessors, (706), 236 states have call successors, (236), 15 states have call predecessors, (236), 15 states have return successors, (236), 226 states have call predecessors, (236), 236 states have call successors, (236) [2023-12-15 20:16:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1178 transitions. [2023-12-15 20:16:20,777 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1178 transitions. Word has length 240 [2023-12-15 20:16:20,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:20,778 INFO L495 AbstractCegarLoop]: Abstraction has 759 states and 1178 transitions. [2023-12-15 20:16:20,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.2) internal successors, (108), 15 states have internal predecessors, (108), 5 states have call successors, (114), 3 states have call predecessors, (114), 6 states have return successors, (114), 5 states have call predecessors, (114), 5 states have call successors, (114) [2023-12-15 20:16:20,778 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1178 transitions. [2023-12-15 20:16:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-12-15 20:16:20,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:20,781 INFO L195 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:16:20,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 20:16:20,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:16:20,996 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:20,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:20,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1791136499, now seen corresponding path program 1 times [2023-12-15 20:16:20,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:20,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628936580] [2023-12-15 20:16:20,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:20,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 20:16:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 20:16:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 20:16:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 20:16:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 20:16:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 20:16:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 20:16:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-12-15 20:16:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 20:16:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 20:16:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 20:16:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 20:16:24,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 20:16:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 20:16:24,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 20:16:24,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 20:16:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 20:16:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 20:16:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 20:16:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 20:16:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 20:16:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 20:16:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 20:16:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 20:16:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 20:16:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 20:16:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 20:16:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 20:16:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 20:16:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-15 20:16:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-15 20:16:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-12-15 20:16:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-12-15 20:16:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-12-15 20:16:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-12-15 20:16:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-12-15 20:16:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-12-15 20:16:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-12-15 20:16:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 177 proven. 138 refuted. 0 times theorem prover too weak. 2497 trivial. 0 not checked. [2023-12-15 20:16:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628936580] [2023-12-15 20:16:25,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628936580] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 20:16:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338704467] [2023-12-15 20:16:25,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:25,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:16:25,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:16:25,037 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 20:16:25,040 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 20:16:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:25,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-15 20:16:25,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:16:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1973 proven. 249 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2023-12-15 20:16:31,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-15 20:17:07,565 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:17:07,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:17:07,605 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 20:17:07,605 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 20:17:07,766 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,SelfDestructingSolverStorable5 [2023-12-15 20:17:07,767 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 241 with TraceHistMax 38,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-15-2-6-3-6-3-4-3-3-1 context. [2023-12-15 20:17:07,770 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-15 20:17:07,772 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:17:07,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:17:07 BoogieIcfgContainer [2023-12-15 20:17:07,774 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:17:07,774 INFO L158 Benchmark]: Toolchain (without parser) took 57441.97ms. Allocated memory was 262.1MB in the beginning and 784.3MB in the end (delta: 522.2MB). Free memory was 206.4MB in the beginning and 317.6MB in the end (delta: -111.2MB). Peak memory consumption was 461.8MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,775 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:17:07,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.48ms. Allocated memory is still 262.1MB. Free memory was 206.4MB in the beginning and 190.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.17ms. Allocated memory is still 262.1MB. Free memory was 190.2MB in the beginning and 186.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,775 INFO L158 Benchmark]: Boogie Preprocessor took 64.66ms. Allocated memory is still 262.1MB. Free memory was 186.0MB in the beginning and 180.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,776 INFO L158 Benchmark]: RCFGBuilder took 528.74ms. Allocated memory is still 262.1MB. Free memory was 180.2MB in the beginning and 149.3MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,776 INFO L158 Benchmark]: TraceAbstraction took 56420.43ms. Allocated memory was 262.1MB in the beginning and 784.3MB in the end (delta: 522.2MB). Free memory was 148.8MB in the beginning and 317.6MB in the end (delta: -168.8MB). Peak memory consumption was 404.2MB. Max. memory is 8.0GB. [2023-12-15 20:17:07,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 347.48ms. Allocated memory is still 262.1MB. Free memory was 206.4MB in the beginning and 190.2MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.17ms. Allocated memory is still 262.1MB. Free memory was 190.2MB in the beginning and 186.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.66ms. Allocated memory is still 262.1MB. Free memory was 186.0MB in the beginning and 180.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 528.74ms. Allocated memory is still 262.1MB. Free memory was 180.2MB in the beginning and 149.3MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 56420.43ms. Allocated memory was 262.1MB in the beginning and 784.3MB in the end (delta: 522.2MB). Free memory was 148.8MB in the beginning and 317.6MB in the end (delta: -168.8MB). Peak memory consumption was 404.2MB. 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 241 with TraceHistMax 38,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-15-2-6-3-6-3-4-3-3-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.4s, OverallIterations: 6, TraceHistogramMax: 38, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 923 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 886 mSDsluCounter, 2527 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1672 mSDsCounter, 464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1252 IncrementalHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 464 mSolverCounterUnsat, 855 mSDtfsCounter, 1252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 947 GetRequests, 906 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=759occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 508 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1435 NumberOfCodeBlocks, 1435 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1668 ConstructedInterpolants, 0 QuantifiedInterpolants, 7240 SizeOfPredicates, 4 NumberOfNonLiveVariables, 557 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 19432/19684 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