./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-pe-co_file-33.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-pe-co_file-33.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 a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 07:15:47,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 07:15:47,830 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 07:15:47,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 07:15:47,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 07:15:47,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 07:15:47,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 07:15:47,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 07:15:47,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 07:15:47,863 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 07:15:47,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 07:15:47,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 07:15:47,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 07:15:47,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 07:15:47,871 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 07:15:47,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 07:15:47,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 07:15:47,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 07:15:47,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 07:15:47,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 07:15:47,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 07:15:47,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 07:15:47,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 07:15:47,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 07:15:47,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 07:15:47,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 07:15:47,876 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 07:15:47,876 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 07:15:47,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 07:15:47,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 07:15:47,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 07:15:47,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 07:15:47,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:15:47,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 07:15:47,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 07:15:47,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 07:15:47,879 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 07:15:47,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 07:15:47,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 07:15:47,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 07:15:47,880 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 07:15:47,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 07:15:47,881 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a748a59f07e4b223740bdd1b062749131146e39483e646914db65f28461caf78 [2024-10-24 07:15:48,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 07:15:48,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 07:15:48,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 07:15:48,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 07:15:48,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 07:15:48,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-10-24 07:15:49,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 07:15:49,788 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 07:15:49,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-10-24 07:15:49,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fafd4ee6/bbedf78a41a74aa6b0da906eecc181a4/FLAG965e7ee37 [2024-10-24 07:15:49,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fafd4ee6/bbedf78a41a74aa6b0da906eecc181a4 [2024-10-24 07:15:49,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 07:15:49,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 07:15:49,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 07:15:49,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 07:15:49,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 07:15:49,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:15:49" (1/1) ... [2024-10-24 07:15:49,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e6d833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:49, skipping insertion in model container [2024-10-24 07:15:49,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:15:49" (1/1) ... [2024-10-24 07:15:49,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 07:15:50,069 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-pe-co_file-33.i[919,932] [2024-10-24 07:15:50,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:15:50,152 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 07:15:50,162 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-pe-co_file-33.i[919,932] [2024-10-24 07:15:50,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 07:15:50,218 INFO L204 MainTranslator]: Completed translation [2024-10-24 07:15:50,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50 WrapperNode [2024-10-24 07:15:50,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 07:15:50,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 07:15:50,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 07:15:50,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 07:15:50,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,278 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-10-24 07:15:50,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 07:15:50,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 07:15:50,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 07:15:50,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 07:15:50,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,294 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,325 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 07:15:50,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,363 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 07:15:50,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 07:15:50,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 07:15:50,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 07:15:50,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (1/1) ... [2024-10-24 07:15:50,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 07:15:50,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 07:15:50,404 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 07:15:50,406 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 07:15:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 07:15:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 07:15:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 07:15:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 07:15:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 07:15:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 07:15:50,520 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 07:15:50,522 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 07:15:50,988 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-24 07:15:50,989 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 07:15:51,035 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 07:15:51,036 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 07:15:51,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:15:51 BoogieIcfgContainer [2024-10-24 07:15:51,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 07:15:51,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 07:15:51,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 07:15:51,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 07:15:51,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:15:49" (1/3) ... [2024-10-24 07:15:51,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be69df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:15:51, skipping insertion in model container [2024-10-24 07:15:51,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:15:50" (2/3) ... [2024-10-24 07:15:51,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be69df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:15:51, skipping insertion in model container [2024-10-24 07:15:51,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:15:51" (3/3) ... [2024-10-24 07:15:51,043 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-33.i [2024-10-24 07:15:51,056 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 07:15:51,056 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 07:15:51,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 07:15:51,118 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;@13888e3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 07:15:51,118 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 07:15:51,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 07:15:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-24 07:15:51,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:15:51,136 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:51,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:15:51,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:15:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1830268860, now seen corresponding path program 1 times [2024-10-24 07:15:51,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:15:51,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321811350] [2024-10-24 07:15:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:15:51,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:15:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:15:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:15:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:15:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:15:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:15:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:15:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:15:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:15:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:15:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:15:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:15:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:15:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:15:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:15:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:15:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:15:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:15:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:15:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:15:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:15:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:15:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:15:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:15:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 07:15:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:15:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:15:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:15:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 07:15:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:15:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 07:15:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 07:15:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 07:15:51,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 07:15:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 07:15:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:15:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:15:51,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321811350] [2024-10-24 07:15:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321811350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:15:51,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:15:51,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 07:15:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517363185] [2024-10-24 07:15:51,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:15:51,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 07:15:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:15:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 07:15:51,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 07:15:51,834 INFO L87 Difference]: Start difference. First operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 07:15:51,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:15:51,896 INFO L93 Difference]: Finished difference Result 183 states and 332 transitions. [2024-10-24 07:15:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 07:15:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209 [2024-10-24 07:15:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:15:51,911 INFO L225 Difference]: With dead ends: 183 [2024-10-24 07:15:51,911 INFO L226 Difference]: Without dead ends: 90 [2024-10-24 07:15:51,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 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 07:15:51,924 INFO L432 NwaCegarLoop]: 137 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, 137 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 07:15:51,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 07:15:51,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-10-24 07:15:51,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-10-24 07:15:51,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-24 07:15:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 140 transitions. [2024-10-24 07:15:51,988 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 140 transitions. Word has length 209 [2024-10-24 07:15:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:15:51,988 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 140 transitions. [2024-10-24 07:15:51,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-24 07:15:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 140 transitions. [2024-10-24 07:15:51,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-24 07:15:51,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:15:51,995 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:51,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 07:15:51,995 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:15:51,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:15:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1013593792, now seen corresponding path program 1 times [2024-10-24 07:15:51,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:15:51,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969458493] [2024-10-24 07:15:51,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:15:51,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:15:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:52,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:15:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:15:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:15:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:15:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:15:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:15:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:15:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:15:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:15:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:15:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:15:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:15:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:15:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:15:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:15:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:15:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:15:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:15:53,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:15:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:15:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:15:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:15:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:15:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 07:15:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:15:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:15:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:15:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 07:15:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:15:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 07:15:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 07:15:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 07:15:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 07:15:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 07:15:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:53,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:15:53,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:15:53,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969458493] [2024-10-24 07:15:53,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969458493] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:15:53,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:15:53,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:15:53,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855624412] [2024-10-24 07:15:53,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:15:53,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:15:53,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:15:53,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:15:53,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:15:53,315 INFO L87 Difference]: Start difference. First operand 90 states and 140 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 07:15:53,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:15:53,672 INFO L93 Difference]: Finished difference Result 273 states and 426 transitions. [2024-10-24 07:15:53,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:15:53,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 209 [2024-10-24 07:15:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:15:53,676 INFO L225 Difference]: With dead ends: 273 [2024-10-24 07:15:53,676 INFO L226 Difference]: Without dead ends: 184 [2024-10-24 07:15:53,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 07:15:53,680 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 86 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 07:15:53,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 351 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 07:15:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-24 07:15:53,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 171. [2024-10-24 07:15:53,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 100 states have (on average 1.32) internal successors, (132), 100 states have internal predecessors, (132), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 07:15:53,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 268 transitions. [2024-10-24 07:15:53,739 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 268 transitions. Word has length 209 [2024-10-24 07:15:53,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:15:53,740 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 268 transitions. [2024-10-24 07:15:53,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 07:15:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 268 transitions. [2024-10-24 07:15:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-10-24 07:15:53,749 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:15:53,750 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:53,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 07:15:53,750 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:15:53,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:15:53,751 INFO L85 PathProgramCache]: Analyzing trace with hash -215222281, now seen corresponding path program 1 times [2024-10-24 07:15:53,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:15:53,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420309601] [2024-10-24 07:15:53,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:15:53,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:15:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 07:15:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 07:15:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 07:15:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 07:15:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-24 07:15:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-24 07:15:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 07:15:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-24 07:15:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 07:15:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 07:15:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-24 07:15:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-24 07:15:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 07:15:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 07:15:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 07:15:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-24 07:15:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 07:15:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 07:15:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 07:15:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 07:15:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 07:15:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 07:15:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-24 07:15:54,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 07:15:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 07:15:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 07:15:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-24 07:15:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-24 07:15:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-24 07:15:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-24 07:15:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-10-24 07:15:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-24 07:15:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-10-24 07:15:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-24 07:15:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 07:15:54,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-24 07:15:54,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 07:15:54,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420309601] [2024-10-24 07:15:54,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420309601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 07:15:54,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 07:15:54,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 07:15:54,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586674389] [2024-10-24 07:15:54,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 07:15:54,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 07:15:54,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 07:15:54,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 07:15:54,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 07:15:54,212 INFO L87 Difference]: Start difference. First operand 171 states and 268 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 07:15:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 07:15:54,445 INFO L93 Difference]: Finished difference Result 291 states and 452 transitions. [2024-10-24 07:15:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 07:15:54,445 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 210 [2024-10-24 07:15:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 07:15:54,449 INFO L225 Difference]: With dead ends: 291 [2024-10-24 07:15:54,452 INFO L226 Difference]: Without dead ends: 180 [2024-10-24 07:15:54,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 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 07:15:54,453 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 83 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 07:15:54,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 363 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 07:15:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-24 07:15:54,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2024-10-24 07:15:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 101 states have (on average 1.306930693069307) internal successors, (132), 101 states have internal predecessors, (132), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-24 07:15:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 268 transitions. [2024-10-24 07:15:54,498 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 268 transitions. Word has length 210 [2024-10-24 07:15:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 07:15:54,499 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 268 transitions. [2024-10-24 07:15:54,499 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, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2024-10-24 07:15:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 268 transitions. [2024-10-24 07:15:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-10-24 07:15:54,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 07:15:54,504 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:54,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 07:15:54,504 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 07:15:54,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 07:15:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1832985405, now seen corresponding path program 1 times [2024-10-24 07:15:54,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 07:15:54,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507773548] [2024-10-24 07:15:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 07:15:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 07:15:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat