./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_fillercode_fillercodestructure_filler-ps-co_file-34.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_fillercode_fillercodestructure_filler-ps-co_file-34.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 fab5880c6add66d25f9dda30d1a24e14051ec77fdefc3f83f67a5e43bacfe3df --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:21:32,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:21:32,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:21:32,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:21:32,644 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:21:32,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:21:32,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:21:32,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:21:32,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:21:32,678 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:21:32,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:21:32,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:21:32,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:21:32,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:21:32,682 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:21:32,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:21:32,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:21:32,683 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:21:32,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:21:32,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:21:32,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:21:32,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:21:32,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:21:32,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:21:32,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:21:32,685 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:21:32,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:21:32,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:21:32,685 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:21:32,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:21:32,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:21:32,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:21:32,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:21:32,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:21:32,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:21:32,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:21:32,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:21:32,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:21:32,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:21:32,692 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:21:32,692 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:21:32,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:21:32,693 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fab5880c6add66d25f9dda30d1a24e14051ec77fdefc3f83f67a5e43bacfe3df [2024-10-24 08:21:32,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:21:32,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:21:32,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:21:32,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:21:32,964 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:21:32,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-10-24 08:21:34,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:21:34,645 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:21:34,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-10-24 08:21:34,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13ef6a9c2/912bf2b1e0f04e6fb85c3c5ead3f4bf6/FLAGa0083171b [2024-10-24 08:21:34,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13ef6a9c2/912bf2b1e0f04e6fb85c3c5ead3f4bf6 [2024-10-24 08:21:34,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:21:34,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:21:34,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:21:34,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:21:34,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:21:34,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:21:34" (1/1) ... [2024-10-24 08:21:34,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6934bc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:34, skipping insertion in model container [2024-10-24 08:21:34,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:21:34" (1/1) ... [2024-10-24 08:21:34,720 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:21:34,899 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_fillercode_fillercodestructure_filler-ps-co_file-34.i[919,932] [2024-10-24 08:21:34,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:21:34,984 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:21:34,995 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_fillercode_fillercodestructure_filler-ps-co_file-34.i[919,932] [2024-10-24 08:21:35,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:21:35,053 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:21:35,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35 WrapperNode [2024-10-24 08:21:35,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:21:35,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:21:35,056 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:21:35,056 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:21:35,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,126 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-10-24 08:21:35,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:21:35,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:21:35,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:21:35,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:21:35,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,173 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 08:21:35,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,200 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,207 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:21:35,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:21:35,221 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:21:35,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:21:35,222 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (1/1) ... [2024-10-24 08:21:35,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:21:35,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:21:35,257 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 08:21:35,260 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 08:21:35,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:21:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:21:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:21:35,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:21:35,414 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:21:35,416 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:21:35,871 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-10-24 08:21:35,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:21:35,924 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:21:35,924 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:21:35,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:21:35 BoogieIcfgContainer [2024-10-24 08:21:35,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:21:35,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:21:35,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:21:35,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:21:35,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:21:34" (1/3) ... [2024-10-24 08:21:35,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0bb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:21:35, skipping insertion in model container [2024-10-24 08:21:35,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:21:35" (2/3) ... [2024-10-24 08:21:35,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b0bb86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:21:35, skipping insertion in model container [2024-10-24 08:21:35,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:21:35" (3/3) ... [2024-10-24 08:21:35,959 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-34.i [2024-10-24 08:21:35,977 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:21:35,977 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:21:36,062 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:21:36,070 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;@2d93dcb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:21:36,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:21:36,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 67 states have (on average 1.537313432835821) internal successors, (103), 68 states have internal predecessors, (103), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 08:21:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 08:21:36,093 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:21:36,094 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:36,095 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:21:36,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:21:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1308473113, now seen corresponding path program 1 times [2024-10-24 08:21:36,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:21:36,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142141513] [2024-10-24 08:21:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:21:36,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:21:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:21:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:21:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:21:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:21:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:21:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:21:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:21:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:21:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:21:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:21:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:21:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:21:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:21:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:21:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:21:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:21:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:21:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:21:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:21:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:21:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:21:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:21:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:21:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:21:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:21:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:21:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:21:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:21:36,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:21:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142141513] [2024-10-24 08:21:36,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142141513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:21:36,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:21:36,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 08:21:36,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232038921] [2024-10-24 08:21:36,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:21:36,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 08:21:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:21:36,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 08:21:36,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 08:21:36,692 INFO L87 Difference]: Start difference. First operand has 97 states, 67 states have (on average 1.537313432835821) internal successors, (103), 68 states have internal predecessors, (103), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-24 08:21:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:21:36,741 INFO L93 Difference]: Finished difference Result 191 states and 339 transitions. [2024-10-24 08:21:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 08:21:36,745 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 175 [2024-10-24 08:21:36,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:21:36,753 INFO L225 Difference]: With dead ends: 191 [2024-10-24 08:21:36,754 INFO L226 Difference]: Without dead ends: 95 [2024-10-24 08:21:36,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 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 08:21:36,761 INFO L432 NwaCegarLoop]: 149 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, 149 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 08:21:36,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:21:36,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-24 08:21:36,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-10-24 08:21:36,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 66 states have internal predecessors, (98), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 08:21:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 152 transitions. [2024-10-24 08:21:36,827 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 152 transitions. Word has length 175 [2024-10-24 08:21:36,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:21:36,828 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 152 transitions. [2024-10-24 08:21:36,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-24 08:21:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 152 transitions. [2024-10-24 08:21:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 08:21:36,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:21:36,835 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:36,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:21:36,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:21:36,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:21:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2137686061, now seen corresponding path program 1 times [2024-10-24 08:21:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:21:36,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564771101] [2024-10-24 08:21:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:21:36,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:21:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:21:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:21:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:21:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:21:37,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:21:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:21:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:21:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:21:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:21:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:21:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:21:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:21:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:21:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:21:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:21:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:21:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:21:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:21:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:21:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:21:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:21:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:21:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:21:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:21:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:21:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:21:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:21:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:21:37,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:21:37,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564771101] [2024-10-24 08:21:37,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564771101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:21:37,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:21:37,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:21:37,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604886599] [2024-10-24 08:21:37,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:21:37,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:21:37,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:21:37,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:21:37,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:21:37,617 INFO L87 Difference]: Start difference. First operand 95 states and 152 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:37,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:21:37,856 INFO L93 Difference]: Finished difference Result 312 states and 498 transitions. [2024-10-24 08:21:37,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:21:37,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-10-24 08:21:37,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:21:37,861 INFO L225 Difference]: With dead ends: 312 [2024-10-24 08:21:37,863 INFO L226 Difference]: Without dead ends: 218 [2024-10-24 08:21:37,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:21:37,865 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 163 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:21:37,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 474 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:21:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-24 08:21:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 189. [2024-10-24 08:21:37,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 132 states have (on average 1.4772727272727273) internal successors, (195), 132 states have internal predecessors, (195), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 08:21:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 303 transitions. [2024-10-24 08:21:37,901 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 303 transitions. Word has length 175 [2024-10-24 08:21:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:21:37,902 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 303 transitions. [2024-10-24 08:21:37,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:37,902 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 303 transitions. [2024-10-24 08:21:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-24 08:21:37,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:21:37,905 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:37,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:21:37,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:21:37,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:21:37,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1174137144, now seen corresponding path program 1 times [2024-10-24 08:21:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:21:37,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063682580] [2024-10-24 08:21:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:21:37,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:21:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:21:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:21:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:21:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:21:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:21:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:21:38,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:21:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:21:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:21:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:21:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:21:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:21:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:21:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:21:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:21:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:21:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:21:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:21:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:21:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:21:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:21:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:21:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:21:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:21:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:21:38,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:21:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:21:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:21:38,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:21:38,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063682580] [2024-10-24 08:21:38,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063682580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:21:38,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:21:38,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 08:21:38,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602611265] [2024-10-24 08:21:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:21:38,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 08:21:38,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:21:38,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 08:21:38,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:21:38,322 INFO L87 Difference]: Start difference. First operand 189 states and 303 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:21:38,714 INFO L93 Difference]: Finished difference Result 560 states and 896 transitions. [2024-10-24 08:21:38,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 08:21:38,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 176 [2024-10-24 08:21:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:21:38,719 INFO L225 Difference]: With dead ends: 560 [2024-10-24 08:21:38,719 INFO L226 Difference]: Without dead ends: 372 [2024-10-24 08:21:38,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:21:38,722 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 233 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:21:38,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 471 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:21:38,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-10-24 08:21:38,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 193. [2024-10-24 08:21:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 136 states have (on average 1.463235294117647) internal successors, (199), 136 states have internal predecessors, (199), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-10-24 08:21:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 307 transitions. [2024-10-24 08:21:38,797 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 307 transitions. Word has length 176 [2024-10-24 08:21:38,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:21:38,797 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 307 transitions. [2024-10-24 08:21:38,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:38,798 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 307 transitions. [2024-10-24 08:21:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 08:21:38,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:21:38,804 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:38,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:21:38,805 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:21:38,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:21:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1188549894, now seen corresponding path program 1 times [2024-10-24 08:21:38,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:21:38,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329426817] [2024-10-24 08:21:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:21:38,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:21:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:21:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:21:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:21:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:21:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:21:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:21:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:21:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:21:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:21:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:21:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:21:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:21:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:21:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:21:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:21:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:21:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:21:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:21:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:21:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:21:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:21:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:21:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:21:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:21:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:21:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:21:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:21:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:21:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:21:40,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329426817] [2024-10-24 08:21:40,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329426817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:21:40,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:21:40,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 08:21:40,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336509288] [2024-10-24 08:21:40,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:21:40,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 08:21:40,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:21:40,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 08:21:40,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 08:21:40,687 INFO L87 Difference]: Start difference. First operand 193 states and 307 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:21:41,235 INFO L93 Difference]: Finished difference Result 573 states and 900 transitions. [2024-10-24 08:21:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:21:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-10-24 08:21:41,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:21:41,240 INFO L225 Difference]: With dead ends: 573 [2024-10-24 08:21:41,240 INFO L226 Difference]: Without dead ends: 381 [2024-10-24 08:21:41,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:21:41,242 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 214 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 08:21:41,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 484 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 08:21:41,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-10-24 08:21:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 271. [2024-10-24 08:21:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 186 states have (on average 1.4516129032258065) internal successors, (270), 186 states have internal predecessors, (270), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:21:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 432 transitions. [2024-10-24 08:21:41,309 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 432 transitions. Word has length 177 [2024-10-24 08:21:41,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:21:41,309 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 432 transitions. [2024-10-24 08:21:41,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:21:41,310 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 432 transitions. [2024-10-24 08:21:41,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 08:21:41,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:21:41,314 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:41,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:21:41,315 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:21:41,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:21:41,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1484821451, now seen corresponding path program 1 times [2024-10-24 08:21:41,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:21:41,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817121331] [2024-10-24 08:21:41,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:21:41,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:21:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:21:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:21:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:21:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:21:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:21:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:21:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:21:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:21:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:21:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:21:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:21:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:21:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:21:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:21:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:21:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:21:53,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:21:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:21:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:21:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:21:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:21:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:21:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:21:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:21:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:21:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:21:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:21:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:21:53,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:21:53,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:21:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817121331] [2024-10-24 08:21:53,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817121331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:21:53,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:21:53,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 08:21:53,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087863799] [2024-10-24 08:21:53,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:21:53,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 08:21:53,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:21:53,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 08:21:53,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-10-24 08:21:53,898 INFO L87 Difference]: Start difference. First operand 271 states and 432 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:00,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:00,064 INFO L93 Difference]: Finished difference Result 695 states and 1069 transitions. [2024-10-24 08:22:00,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 08:22:00,064 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-10-24 08:22:00,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:00,068 INFO L225 Difference]: With dead ends: 695 [2024-10-24 08:22:00,068 INFO L226 Difference]: Without dead ends: 486 [2024-10-24 08:22:00,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-10-24 08:22:00,071 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 513 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:00,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 748 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 08:22:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-24 08:22:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 344. [2024-10-24 08:22:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 259 states have (on average 1.4478764478764479) internal successors, (375), 259 states have internal predecessors, (375), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 537 transitions. [2024-10-24 08:22:00,114 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 537 transitions. Word has length 177 [2024-10-24 08:22:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:00,115 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 537 transitions. [2024-10-24 08:22:00,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 537 transitions. [2024-10-24 08:22:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 08:22:00,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:00,118 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:00,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:22:00,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:00,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:00,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1542079753, now seen corresponding path program 1 times [2024-10-24 08:22:00,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:00,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762201347] [2024-10-24 08:22:00,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:00,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:02,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762201347] [2024-10-24 08:22:02,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762201347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:02,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:02,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:22:02,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152168807] [2024-10-24 08:22:02,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:02,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:22:02,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:02,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:22:02,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:22:02,608 INFO L87 Difference]: Start difference. First operand 344 states and 537 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:03,815 INFO L93 Difference]: Finished difference Result 757 states and 1173 transitions. [2024-10-24 08:22:03,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:22:03,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-10-24 08:22:03,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:03,819 INFO L225 Difference]: With dead ends: 757 [2024-10-24 08:22:03,819 INFO L226 Difference]: Without dead ends: 549 [2024-10-24 08:22:03,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-24 08:22:03,823 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 365 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:03,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 518 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 08:22:03,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-10-24 08:22:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 389. [2024-10-24 08:22:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 304 states have (on average 1.4342105263157894) internal successors, (436), 304 states have internal predecessors, (436), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 598 transitions. [2024-10-24 08:22:03,859 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 598 transitions. Word has length 177 [2024-10-24 08:22:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:03,860 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 598 transitions. [2024-10-24 08:22:03,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:03,860 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 598 transitions. [2024-10-24 08:22:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 08:22:03,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:03,862 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:03,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:22:03,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:03,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:03,863 INFO L85 PathProgramCache]: Analyzing trace with hash 675474825, now seen corresponding path program 1 times [2024-10-24 08:22:03,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:03,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059445247] [2024-10-24 08:22:03,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:03,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:07,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:08,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:08,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:08,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:08,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059445247] [2024-10-24 08:22:08,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059445247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:08,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:08,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:22:08,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422111183] [2024-10-24 08:22:08,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:08,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:22:08,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:22:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:22:08,035 INFO L87 Difference]: Start difference. First operand 389 states and 598 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:09,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:09,600 INFO L93 Difference]: Finished difference Result 729 states and 1115 transitions. [2024-10-24 08:22:09,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:22:09,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-10-24 08:22:09,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:09,605 INFO L225 Difference]: With dead ends: 729 [2024-10-24 08:22:09,605 INFO L226 Difference]: Without dead ends: 519 [2024-10-24 08:22:09,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:22:09,607 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 314 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:09,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 632 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 08:22:09,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-24 08:22:09,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 409. [2024-10-24 08:22:09,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 324 states have (on average 1.4444444444444444) internal successors, (468), 324 states have internal predecessors, (468), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 630 transitions. [2024-10-24 08:22:09,648 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 630 transitions. Word has length 177 [2024-10-24 08:22:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:09,649 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 630 transitions. [2024-10-24 08:22:09,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 630 transitions. [2024-10-24 08:22:09,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-24 08:22:09,651 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:09,651 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:09,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 08:22:09,651 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:09,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1775355908, now seen corresponding path program 1 times [2024-10-24 08:22:09,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:09,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556333475] [2024-10-24 08:22:09,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:09,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:09,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:10,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:10,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:10,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556333475] [2024-10-24 08:22:10,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556333475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:10,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:10,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:22:10,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983073896] [2024-10-24 08:22:10,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:10,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:22:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:22:10,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:22:10,063 INFO L87 Difference]: Start difference. First operand 409 states and 630 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:10,323 INFO L93 Difference]: Finished difference Result 659 states and 1019 transitions. [2024-10-24 08:22:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:22:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 177 [2024-10-24 08:22:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:10,327 INFO L225 Difference]: With dead ends: 659 [2024-10-24 08:22:10,328 INFO L226 Difference]: Without dead ends: 407 [2024-10-24 08:22:10,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:22:10,330 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 116 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:10,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 366 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:22:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-10-24 08:22:10,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 381. [2024-10-24 08:22:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 296 states have (on average 1.412162162162162) internal successors, (418), 296 states have internal predecessors, (418), 81 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 580 transitions. [2024-10-24 08:22:10,368 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 580 transitions. Word has length 177 [2024-10-24 08:22:10,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:10,369 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 580 transitions. [2024-10-24 08:22:10,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:10,369 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 580 transitions. [2024-10-24 08:22:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 08:22:10,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:10,372 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:10,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 08:22:10,372 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:10,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:10,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1668357219, now seen corresponding path program 1 times [2024-10-24 08:22:10,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:10,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067810140] [2024-10-24 08:22:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:10,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067810140] [2024-10-24 08:22:12,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067810140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:12,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:12,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:22:12,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039723260] [2024-10-24 08:22:12,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:12,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:22:12,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:12,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:22:12,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:22:12,599 INFO L87 Difference]: Start difference. First operand 381 states and 580 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:13,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:13,927 INFO L93 Difference]: Finished difference Result 751 states and 1131 transitions. [2024-10-24 08:22:13,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 08:22:13,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-10-24 08:22:13,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:13,931 INFO L225 Difference]: With dead ends: 751 [2024-10-24 08:22:13,931 INFO L226 Difference]: Without dead ends: 559 [2024-10-24 08:22:13,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-10-24 08:22:13,934 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 422 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:13,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 651 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 08:22:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-24 08:22:13,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 409. [2024-10-24 08:22:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 322 states have (on average 1.391304347826087) internal successors, (448), 322 states have internal predecessors, (448), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:13,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 610 transitions. [2024-10-24 08:22:13,976 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 610 transitions. Word has length 178 [2024-10-24 08:22:13,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:13,977 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 610 transitions. [2024-10-24 08:22:13,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:13,977 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 610 transitions. [2024-10-24 08:22:13,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 08:22:13,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:13,980 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:13,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 08:22:13,981 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:13,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash 135697459, now seen corresponding path program 1 times [2024-10-24 08:22:13,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715762227] [2024-10-24 08:22:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:16,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:16,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:16,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:16,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:16,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:16,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715762227] [2024-10-24 08:22:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715762227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:16,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:16,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 08:22:16,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113496929] [2024-10-24 08:22:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:16,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 08:22:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 08:22:16,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-24 08:22:16,846 INFO L87 Difference]: Start difference. First operand 409 states and 610 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:19,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:19,579 INFO L93 Difference]: Finished difference Result 952 states and 1410 transitions. [2024-10-24 08:22:19,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 08:22:19,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-10-24 08:22:19,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:19,586 INFO L225 Difference]: With dead ends: 952 [2024-10-24 08:22:19,586 INFO L226 Difference]: Without dead ends: 694 [2024-10-24 08:22:19,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2024-10-24 08:22:19,588 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 309 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:19,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 573 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 08:22:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-10-24 08:22:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 510. [2024-10-24 08:22:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 423 states have (on average 1.4113475177304964) internal successors, (597), 423 states have internal predecessors, (597), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:19,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 759 transitions. [2024-10-24 08:22:19,637 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 759 transitions. Word has length 178 [2024-10-24 08:22:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:19,638 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 759 transitions. [2024-10-24 08:22:19,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 759 transitions. [2024-10-24 08:22:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-24 08:22:19,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:19,640 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:19,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 08:22:19,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:19,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:19,641 INFO L85 PathProgramCache]: Analyzing trace with hash -673649167, now seen corresponding path program 1 times [2024-10-24 08:22:19,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:19,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102169288] [2024-10-24 08:22:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:19,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:22:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:22:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 08:22:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:22:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 08:22:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:22:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 08:22:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:22:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 08:22:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:22:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 08:22:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:22:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 08:22:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:22:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 08:22:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 08:22:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-24 08:22:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-24 08:22:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-24 08:22:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 08:22:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 08:22:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 08:22:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 08:22:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 08:22:27,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 08:22:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 08:22:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 08:22:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:22:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 08:22:27,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:22:27,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102169288] [2024-10-24 08:22:27,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102169288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:22:27,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:22:27,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 08:22:27,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862482927] [2024-10-24 08:22:27,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:22:27,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 08:22:27,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:22:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 08:22:27,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:22:27,756 INFO L87 Difference]: Start difference. First operand 510 states and 759 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:22:29,434 INFO L93 Difference]: Finished difference Result 945 states and 1384 transitions. [2024-10-24 08:22:29,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 08:22:29,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 178 [2024-10-24 08:22:29,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:22:29,440 INFO L225 Difference]: With dead ends: 945 [2024-10-24 08:22:29,440 INFO L226 Difference]: Without dead ends: 616 [2024-10-24 08:22:29,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2024-10-24 08:22:29,442 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 230 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:22:29,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 786 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 08:22:29,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-10-24 08:22:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 510. [2024-10-24 08:22:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 423 states have (on average 1.408983451536643) internal successors, (596), 423 states have internal predecessors, (596), 81 states have call successors, (81), 5 states have call predecessors, (81), 5 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 08:22:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 758 transitions. [2024-10-24 08:22:29,487 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 758 transitions. Word has length 178 [2024-10-24 08:22:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:22:29,488 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 758 transitions. [2024-10-24 08:22:29,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 08:22:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 758 transitions. [2024-10-24 08:22:29,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-24 08:22:29,490 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:22:29,490 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:29,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 08:22:29,491 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:22:29,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:22:29,491 INFO L85 PathProgramCache]: Analyzing trace with hash -374225408, now seen corresponding path program 1 times [2024-10-24 08:22:29,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:22:29,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186527249] [2024-10-24 08:22:29,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:22:29,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:22:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat