./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 111d166f25abb14628c4a40c90c27dbe8c1d7bef0615966c9d9ea8064d60e093 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:52:03,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:52:03,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:52:03,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:52:03,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:52:03,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:52:03,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:52:03,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:52:03,858 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:52:03,861 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:52:03,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:52:03,861 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:52:03,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:52:03,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:52:03,862 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:52:03,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:52:03,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:52:03,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:52:03,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:52:03,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:52:03,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:52:03,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:52:03,865 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:52:03,865 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:52:03,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:52:03,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:52:03,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:52:03,866 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:52:03,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:52:03,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:52:03,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:03,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:52:03,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:52:03,868 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:52:03,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:52:03,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:52:03,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:52:03,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 111d166f25abb14628c4a40c90c27dbe8c1d7bef0615966c9d9ea8064d60e093 [2024-10-24 08:52:04,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:52:04,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:52:04,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:52:04,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:52:04,086 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:52:04,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i [2024-10-24 08:52:05,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:52:05,536 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:52:05,537 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i [2024-10-24 08:52:05,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e481642/255f4035cfd44b9ab6bbc2f2ae99e013/FLAG282a94c2a [2024-10-24 08:52:05,933 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66e481642/255f4035cfd44b9ab6bbc2f2ae99e013 [2024-10-24 08:52:05,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:52:05,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:52:05,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:05,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:52:05,942 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:52:05,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:05" (1/1) ... [2024-10-24 08:52:05,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50065207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:05, skipping insertion in model container [2024-10-24 08:52:05,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:05" (1/1) ... [2024-10-24 08:52:05,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:52:06,128 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i[916,929] [2024-10-24 08:52:06,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:06,198 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:52:06,207 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-12.i[916,929] [2024-10-24 08:52:06,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:06,247 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:52:06,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06 WrapperNode [2024-10-24 08:52:06,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:06,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:06,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:52:06,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:52:06,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,299 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 104 [2024-10-24 08:52:06,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:06,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:52:06,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:52:06,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:52:06,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,335 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]. [2024-10-24 08:52:06,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:52:06,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:52:06,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:52:06,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:52:06,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (1/1) ... [2024-10-24 08:52:06,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:52:06,387 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) [2024-10-24 08:52:06,389 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 [2024-10-24 08:52:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:52:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:52:06,436 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:52:06,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:52:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:52:06,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:52:06,500 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:52:06,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:52:06,727 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-24 08:52:06,727 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:52:06,763 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:52:06,766 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:52:06,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:06 BoogieIcfgContainer [2024-10-24 08:52:06,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:52:06,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:52:06,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:52:06,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:52:06,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:52:05" (1/3) ... [2024-10-24 08:52:06,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a440ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:06, skipping insertion in model container [2024-10-24 08:52:06,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:06" (2/3) ... [2024-10-24 08:52:06,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a440ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:06, skipping insertion in model container [2024-10-24 08:52:06,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:06" (3/3) ... [2024-10-24 08:52:06,777 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-12.i [2024-10-24 08:52:06,793 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:52:06,793 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:52:06,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:52:06,855 INFO L333 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, 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;@587bc20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:52:06,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:52:06,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 08:52:06,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:52:06,870 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:06,871 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:06,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:06,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:06,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1694065204, now seen corresponding path program 1 times [2024-10-24 08:52:06,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:06,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636389017] [2024-10-24 08:52:06,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:06,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:52:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636389017] [2024-10-24 08:52:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636389017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:07,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:07,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:52:07,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347962042] [2024-10-24 08:52:07,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:07,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:52:07,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:52:07,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:52:07,218 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 27 states have internal predecessors, (37), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 08:52:07,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:07,289 INFO L93 Difference]: Finished difference Result 85 states and 148 transitions. [2024-10-24 08:52:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:52:07,292 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 98 [2024-10-24 08:52:07,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:07,297 INFO L225 Difference]: With dead ends: 85 [2024-10-24 08:52:07,297 INFO L226 Difference]: Without dead ends: 41 [2024-10-24 08:52:07,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:52:07,304 INFO L432 NwaCegarLoop]: 56 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, 56 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 [2024-10-24 08:52:07,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:52:07,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-24 08:52:07,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-10-24 08:52:07,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 08:52:07,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 59 transitions. [2024-10-24 08:52:07,346 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 59 transitions. Word has length 98 [2024-10-24 08:52:07,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:07,346 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 59 transitions. [2024-10-24 08:52:07,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-24 08:52:07,346 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-10-24 08:52:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:52:07,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:07,349 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:07,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:52:07,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:07,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash -695827916, now seen corresponding path program 1 times [2024-10-24 08:52:07,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:07,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608967303] [2024-10-24 08:52:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:07,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:09,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:52:09,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608967303] [2024-10-24 08:52:09,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608967303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:09,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:09,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:52:09,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050662641] [2024-10-24 08:52:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:09,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:52:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:09,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:52:09,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:52:09,118 INFO L87 Difference]: Start difference. First operand 41 states and 59 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:09,948 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2024-10-24 08:52:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 08:52:09,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2024-10-24 08:52:09,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:09,951 INFO L225 Difference]: With dead ends: 92 [2024-10-24 08:52:09,951 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 08:52:09,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:52:09,952 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 69 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:09,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 208 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 08:52:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 08:52:09,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 69. [2024-10-24 08:52:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 43 states have internal predecessors, (49), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:52:09,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2024-10-24 08:52:09,977 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 97 transitions. Word has length 98 [2024-10-24 08:52:09,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:09,978 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 97 transitions. [2024-10-24 08:52:09,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2024-10-24 08:52:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-24 08:52:09,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:09,984 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:09,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:52:09,984 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:09,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:09,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1505174542, now seen corresponding path program 1 times [2024-10-24 08:52:09,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:09,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570031818] [2024-10-24 08:52:09,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:09,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:52:17,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:17,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570031818] [2024-10-24 08:52:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570031818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:17,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:17,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 08:52:17,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282593767] [2024-10-24 08:52:17,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:17,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 08:52:17,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:17,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 08:52:17,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:52:17,442 INFO L87 Difference]: Start difference. First operand 69 states and 97 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:20,649 INFO L93 Difference]: Finished difference Result 80 states and 108 transitions. [2024-10-24 08:52:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:52:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 98 [2024-10-24 08:52:20,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:20,652 INFO L225 Difference]: With dead ends: 80 [2024-10-24 08:52:20,652 INFO L226 Difference]: Without dead ends: 78 [2024-10-24 08:52:20,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:52:20,653 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 16 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:20,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 161 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:52:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-24 08:52:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2024-10-24 08:52:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 47 states have internal predecessors, (53), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 08:52:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2024-10-24 08:52:20,666 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 98 [2024-10-24 08:52:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:20,667 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2024-10-24 08:52:20,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:20,667 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2024-10-24 08:52:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 08:52:20,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:20,668 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:20,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:52:20,669 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:20,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:20,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1176034001, now seen corresponding path program 1 times [2024-10-24 08:52:20,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33690416] [2024-10-24 08:52:20,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:20,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:21,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:21,924 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:52:21,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:21,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33690416] [2024-10-24 08:52:21,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33690416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:21,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:21,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 08:52:21,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177210990] [2024-10-24 08:52:21,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:21,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 08:52:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:21,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 08:52:21,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:52:21,927 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:23,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:23,532 INFO L93 Difference]: Finished difference Result 94 states and 124 transitions. [2024-10-24 08:52:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:52:23,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-10-24 08:52:23,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:23,536 INFO L225 Difference]: With dead ends: 94 [2024-10-24 08:52:23,537 INFO L226 Difference]: Without dead ends: 92 [2024-10-24 08:52:23,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:52:23,538 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 48 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:23,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 360 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 08:52:23,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-24 08:52:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2024-10-24 08:52:23,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 56 states have (on average 1.125) internal successors, (63), 58 states have internal predecessors, (63), 28 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 08:52:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2024-10-24 08:52:23,558 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 99 [2024-10-24 08:52:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:23,559 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-10-24 08:52:23,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:23,559 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2024-10-24 08:52:23,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 08:52:23,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:23,560 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:23,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:52:23,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:23,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:23,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1233292303, now seen corresponding path program 1 times [2024-10-24 08:52:23,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:23,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120011174] [2024-10-24 08:52:23,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:23,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:24,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:52:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:52:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:52:24,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:24,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120011174] [2024-10-24 08:52:24,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120011174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:24,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:24,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 08:52:24,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584908028] [2024-10-24 08:52:24,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:24,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 08:52:24,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:24,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 08:52:24,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:52:24,500 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:25,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:25,182 INFO L93 Difference]: Finished difference Result 106 states and 141 transitions. [2024-10-24 08:52:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:52:25,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-10-24 08:52:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:25,184 INFO L225 Difference]: With dead ends: 106 [2024-10-24 08:52:25,184 INFO L226 Difference]: Without dead ends: 104 [2024-10-24 08:52:25,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:52:25,185 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 51 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:25,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 340 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 08:52:25,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-24 08:52:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2024-10-24 08:52:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 66 states have internal predecessors, (69), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 08:52:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 137 transitions. [2024-10-24 08:52:25,208 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 137 transitions. Word has length 99 [2024-10-24 08:52:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:25,209 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 137 transitions. [2024-10-24 08:52:25,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:52:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 137 transitions. [2024-10-24 08:52:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 08:52:25,210 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:25,210 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:25,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:52:25,210 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:25,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:25,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1856092371, now seen corresponding path program 1 times [2024-10-24 08:52:25,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:25,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915928354] [2024-10-24 08:52:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,598 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-10-24 08:53:31,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:53:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:53:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:53:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:53:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:53:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:53:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:53:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:53:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:53:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:53:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:53:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:53:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:53:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:53:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:53:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 08:53:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-10-24 08:53:31,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:53:31,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915928354] [2024-10-24 08:53:31,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915928354] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:53:31,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:53:31,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 08:53:31,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529167347] [2024-10-24 08:53:31,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:53:31,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:53:31,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:53:31,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:53:31,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:53:31,291 INFO L87 Difference]: Start difference. First operand 102 states and 137 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:53:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:53:32,885 INFO L93 Difference]: Finished difference Result 111 states and 146 transitions. [2024-10-24 08:53:32,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:53:32,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 99 [2024-10-24 08:53:32,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:53:32,890 INFO L225 Difference]: With dead ends: 111 [2024-10-24 08:53:32,891 INFO L226 Difference]: Without dead ends: 109 [2024-10-24 08:53:32,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:53:32,892 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 21 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 08:53:32,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 175 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 08:53:32,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-24 08:53:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 102. [2024-10-24 08:53:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 63 states have (on average 1.0952380952380953) internal successors, (69), 66 states have internal predecessors, (69), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 31 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 08:53:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 137 transitions. [2024-10-24 08:53:32,916 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 137 transitions. Word has length 99 [2024-10-24 08:53:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:53:32,917 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 137 transitions. [2024-10-24 08:53:32,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-10-24 08:53:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 137 transitions. [2024-10-24 08:53:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-24 08:53:32,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:53:32,918 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:53:32,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:53:32,918 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:53:32,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:53:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1913350673, now seen corresponding path program 1 times [2024-10-24 08:53:32,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:53:32,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173381579] [2024-10-24 08:53:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:53:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:53:32,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat