./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_loopvsstraightlinecode_100-while_file-26.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_loopvsstraightlinecode_100-while_file-26.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 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:14:19,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:14:19,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:14:19,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:14:19,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:14:19,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:14:19,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:14:19,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:14:19,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:14:19,249 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:14:19,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:14:19,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:14:19,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:14:19,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:14:19,253 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:14:19,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:14:19,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:14:19,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:14:19,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:14:19,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:14:19,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:14:19,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:14:19,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:14:19,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:14:19,260 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:14:19,261 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:14:19,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:14:19,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:14:19,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:14:19,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:14:19,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:14:19,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:14:19,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:14:19,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:14:19,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:14:19,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:14:19,263 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:14:19,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:14:19,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:14:19,264 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:14:19,264 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:14:19,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:14:19,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc8a0783ec7e65aec5bb1b8ce7f7837d17a7d27f4f67ff4962ce15c1b498ac3 [2024-10-24 09:14:19,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:14:19,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:14:19,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:14:19,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:14:19,579 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:14:19,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2024-10-24 09:14:21,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:14:21,357 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:14:21,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-26.i [2024-10-24 09:14:21,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae4cbd94/29faae0ad5b14f35b3361fa4192762c5/FLAG14d18eff8 [2024-10-24 09:14:21,392 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae4cbd94/29faae0ad5b14f35b3361fa4192762c5 [2024-10-24 09:14:21,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:14:21,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:14:21,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:14:21,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:14:21,408 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:14:21,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:21,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36bf8b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21, skipping insertion in model container [2024-10-24 09:14:21,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:21,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:14:21,655 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_loopvsstraightlinecode_100-while_file-26.i[916,929] [2024-10-24 09:14:21,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:14:21,830 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:14:21,885 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_loopvsstraightlinecode_100-while_file-26.i[916,929] [2024-10-24 09:14:21,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:14:21,970 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:14:21,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21 WrapperNode [2024-10-24 09:14:21,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:14:21,972 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:14:21,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:14:21,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:14:21,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:21,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,052 INFO L138 Inliner]: procedures = 26, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-10-24 09:14:22,053 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:14:22,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:14:22,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:14:22,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:14:22,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,099 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 09:14:22,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:14:22,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:14:22,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:14:22,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:14:22,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (1/1) ... [2024-10-24 09:14:22,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:14:22,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:14:22,199 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 09:14:22,203 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 09:14:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:14:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:14:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:14:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:14:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:14:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:14:22,361 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:14:22,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:14:22,878 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-10-24 09:14:22,879 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:14:22,916 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:14:22,917 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:14:22,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:14:22 BoogieIcfgContainer [2024-10-24 09:14:22,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:14:22,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:14:22,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:14:22,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:14:22,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:14:21" (1/3) ... [2024-10-24 09:14:22,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1627e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:14:22, skipping insertion in model container [2024-10-24 09:14:22,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:14:21" (2/3) ... [2024-10-24 09:14:22,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1627e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:14:22, skipping insertion in model container [2024-10-24 09:14:22,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:14:22" (3/3) ... [2024-10-24 09:14:22,926 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-26.i [2024-10-24 09:14:22,940 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:14:22,940 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:14:23,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:14:23,017 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;@79bda066, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:14:23,017 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:14:23,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 64 states have internal predecessors, (93), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 09:14:23,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-24 09:14:23,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:23,036 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:23,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:23,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:23,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1885740933, now seen corresponding path program 1 times [2024-10-24 09:14:23,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:23,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616367777] [2024-10-24 09:14:23,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:23,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:23,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:23,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616367777] [2024-10-24 09:14:23,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616367777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:23,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:23,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:14:23,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393142352] [2024-10-24 09:14:23,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:23,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:14:23,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:23,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:14:23,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:14:23,767 INFO L87 Difference]: Start difference. First operand has 96 states, 63 states have (on average 1.4761904761904763) internal successors, (93), 64 states have internal predecessors, (93), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-24 09:14:23,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:23,832 INFO L93 Difference]: Finished difference Result 189 states and 334 transitions. [2024-10-24 09:14:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:14:23,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) Word has length 193 [2024-10-24 09:14:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:23,847 INFO L225 Difference]: With dead ends: 189 [2024-10-24 09:14:23,847 INFO L226 Difference]: Without dead ends: 94 [2024-10-24 09:14:23,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 92 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 09:14:23,858 INFO L432 NwaCegarLoop]: 145 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, 145 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 09:14:23,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:14:23,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-24 09:14:23,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-10-24 09:14:23,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 62 states have (on average 1.4193548387096775) internal successors, (88), 62 states have internal predecessors, (88), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 09:14:23,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 148 transitions. [2024-10-24 09:14:23,920 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 148 transitions. Word has length 193 [2024-10-24 09:14:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:23,921 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 148 transitions. [2024-10-24 09:14:23,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-24 09:14:23,923 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 148 transitions. [2024-10-24 09:14:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-24 09:14:23,929 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:23,930 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:23,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:14:23,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:23,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash 928168457, now seen corresponding path program 1 times [2024-10-24 09:14:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:23,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97198442] [2024-10-24 09:14:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:24,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:24,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:24,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97198442] [2024-10-24 09:14:24,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97198442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:24,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:24,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 09:14:24,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528416409] [2024-10-24 09:14:24,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:24,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 09:14:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:24,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 09:14:24,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:14:24,628 INFO L87 Difference]: Start difference. First operand 94 states and 148 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:24,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:24,720 INFO L93 Difference]: Finished difference Result 280 states and 442 transitions. [2024-10-24 09:14:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 09:14:24,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 193 [2024-10-24 09:14:24,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:24,731 INFO L225 Difference]: With dead ends: 280 [2024-10-24 09:14:24,731 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 09:14:24,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 09:14:24,736 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 144 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:24,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 384 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:14:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 09:14:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 95. [2024-10-24 09:14:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 63 states have internal predecessors, (89), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 09:14:24,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 149 transitions. [2024-10-24 09:14:24,760 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 149 transitions. Word has length 193 [2024-10-24 09:14:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:24,766 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 149 transitions. [2024-10-24 09:14:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:24,767 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 149 transitions. [2024-10-24 09:14:24,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-24 09:14:24,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:24,772 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:24,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:14:24,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:24,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash -351695221, now seen corresponding path program 1 times [2024-10-24 09:14:24,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:24,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824921147] [2024-10-24 09:14:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:24,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:25,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:25,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:25,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:25,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824921147] [2024-10-24 09:14:25,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824921147] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:25,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:25,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:14:25,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531026240] [2024-10-24 09:14:25,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:25,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:14:25,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:25,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:14:25,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:14:25,469 INFO L87 Difference]: Start difference. First operand 95 states and 149 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:25,832 INFO L93 Difference]: Finished difference Result 307 states and 479 transitions. [2024-10-24 09:14:25,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:14:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 193 [2024-10-24 09:14:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:25,836 INFO L225 Difference]: With dead ends: 307 [2024-10-24 09:14:25,836 INFO L226 Difference]: Without dead ends: 213 [2024-10-24 09:14:25,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:14:25,839 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 152 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:25,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 571 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:14:25,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-24 09:14:25,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 187. [2024-10-24 09:14:25,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 124 states have internal predecessors, (175), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 09:14:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 295 transitions. [2024-10-24 09:14:25,887 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 295 transitions. Word has length 193 [2024-10-24 09:14:25,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:25,888 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 295 transitions. [2024-10-24 09:14:25,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:25,894 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 295 transitions. [2024-10-24 09:14:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-24 09:14:25,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:25,901 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:25,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:14:25,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:25,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:25,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2137833741, now seen corresponding path program 1 times [2024-10-24 09:14:25,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:25,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220894433] [2024-10-24 09:14:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:25,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:26,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:26,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:26,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220894433] [2024-10-24 09:14:26,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220894433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:26,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:26,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:14:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212514256] [2024-10-24 09:14:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:26,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:14:26,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:26,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:14:26,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:14:26,810 INFO L87 Difference]: Start difference. First operand 187 states and 295 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:27,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:27,019 INFO L93 Difference]: Finished difference Result 564 states and 876 transitions. [2024-10-24 09:14:27,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 09:14:27,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 193 [2024-10-24 09:14:27,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:27,024 INFO L225 Difference]: With dead ends: 564 [2024-10-24 09:14:27,024 INFO L226 Difference]: Without dead ends: 378 [2024-10-24 09:14:27,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:14:27,028 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 126 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:27,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 500 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:14:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-10-24 09:14:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 311. [2024-10-24 09:14:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 234 states have (on average 1.4658119658119657) internal successors, (343), 236 states have internal predecessors, (343), 72 states have call successors, (72), 4 states have call predecessors, (72), 4 states have return successors, (72), 70 states have call predecessors, (72), 72 states have call successors, (72) [2024-10-24 09:14:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 487 transitions. [2024-10-24 09:14:27,093 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 487 transitions. Word has length 193 [2024-10-24 09:14:27,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:27,094 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 487 transitions. [2024-10-24 09:14:27,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 487 transitions. [2024-10-24 09:14:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-24 09:14:27,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:27,099 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:27,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:14:27,100 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:27,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1257511258, now seen corresponding path program 1 times [2024-10-24 09:14:27,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:27,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271383383] [2024-10-24 09:14:27,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:27,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:27,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:27,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:27,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:27,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271383383] [2024-10-24 09:14:27,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271383383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:27,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:27,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 09:14:27,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326728523] [2024-10-24 09:14:27,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:27,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 09:14:27,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:27,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 09:14:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 09:14:27,600 INFO L87 Difference]: Start difference. First operand 311 states and 487 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-24 09:14:27,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:27,913 INFO L93 Difference]: Finished difference Result 787 states and 1233 transitions. [2024-10-24 09:14:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:14:27,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 194 [2024-10-24 09:14:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:27,919 INFO L225 Difference]: With dead ends: 787 [2024-10-24 09:14:27,919 INFO L226 Difference]: Without dead ends: 477 [2024-10-24 09:14:27,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:14:27,922 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 250 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:27,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 445 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 09:14:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-24 09:14:27,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2024-10-24 09:14:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 360 states have (on average 1.4583333333333333) internal successors, (525), 363 states have internal predecessors, (525), 108 states have call successors, (108), 6 states have call predecessors, (108), 6 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-24 09:14:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 741 transitions. [2024-10-24 09:14:27,988 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 741 transitions. Word has length 194 [2024-10-24 09:14:27,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:27,989 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 741 transitions. [2024-10-24 09:14:27,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-10-24 09:14:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 741 transitions. [2024-10-24 09:14:27,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-24 09:14:27,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:27,991 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:27,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:14:27,992 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:27,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:27,992 INFO L85 PathProgramCache]: Analyzing trace with hash -431432484, now seen corresponding path program 1 times [2024-10-24 09:14:27,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:27,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709434964] [2024-10-24 09:14:27,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:27,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:28,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:28,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:28,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709434964] [2024-10-24 09:14:28,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709434964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:28,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:28,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:14:28,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134577532] [2024-10-24 09:14:28,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:28,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:14:28,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:14:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:14:28,570 INFO L87 Difference]: Start difference. First operand 475 states and 741 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:30,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:30,952 INFO L93 Difference]: Finished difference Result 3008 states and 4647 transitions. [2024-10-24 09:14:30,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 09:14:30,953 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 194 [2024-10-24 09:14:30,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:30,968 INFO L225 Difference]: With dead ends: 3008 [2024-10-24 09:14:30,969 INFO L226 Difference]: Without dead ends: 2534 [2024-10-24 09:14:30,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-10-24 09:14:30,971 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 883 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:30,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 1415 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 09:14:30,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2024-10-24 09:14:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2072. [2024-10-24 09:14:31,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1548 states have (on average 1.4328165374677002) internal successors, (2218), 1568 states have internal predecessors, (2218), 492 states have call successors, (492), 31 states have call predecessors, (492), 31 states have return successors, (492), 472 states have call predecessors, (492), 492 states have call successors, (492) [2024-10-24 09:14:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 3202 transitions. [2024-10-24 09:14:31,213 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 3202 transitions. Word has length 194 [2024-10-24 09:14:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:31,213 INFO L471 AbstractCegarLoop]: Abstraction has 2072 states and 3202 transitions. [2024-10-24 09:14:31,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-10-24 09:14:31,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 3202 transitions. [2024-10-24 09:14:31,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-24 09:14:31,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:31,216 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:31,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:14:31,217 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:31,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:31,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1343574878, now seen corresponding path program 1 times [2024-10-24 09:14:31,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:31,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200188434] [2024-10-24 09:14:31,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:31,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:14:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:14:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 09:14:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:14:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 09:14:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:14:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 09:14:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:14:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 09:14:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:14:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 09:14:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:14:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 09:14:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:14:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 09:14:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:14:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 09:14:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:14:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-24 09:14:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:14:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 09:14:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-24 09:14:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-24 09:14:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-24 09:14:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-24 09:14:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:14:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-24 09:14:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-24 09:14:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-24 09:14:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-24 09:14:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:14:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-10-24 09:14:37,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:14:37,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200188434] [2024-10-24 09:14:37,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200188434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:14:37,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:14:37,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 09:14:37,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686279426] [2024-10-24 09:14:37,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:14:37,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 09:14:37,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:14:37,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 09:14:37,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:14:37,867 INFO L87 Difference]: Start difference. First operand 2072 states and 3202 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 09:14:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:14:39,633 INFO L93 Difference]: Finished difference Result 5103 states and 7843 transitions. [2024-10-24 09:14:39,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 09:14:39,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 194 [2024-10-24 09:14:39,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:14:39,689 INFO L225 Difference]: With dead ends: 5103 [2024-10-24 09:14:39,689 INFO L226 Difference]: Without dead ends: 3032 [2024-10-24 09:14:39,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-10-24 09:14:39,695 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 451 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:14:39,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 944 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 09:14:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2024-10-24 09:14:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2312. [2024-10-24 09:14:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1788 states have (on average 1.4429530201342282) internal successors, (2580), 1808 states have internal predecessors, (2580), 492 states have call successors, (492), 31 states have call predecessors, (492), 31 states have return successors, (492), 472 states have call predecessors, (492), 492 states have call successors, (492) [2024-10-24 09:14:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3564 transitions. [2024-10-24 09:14:39,873 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3564 transitions. Word has length 194 [2024-10-24 09:14:39,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:14:39,874 INFO L471 AbstractCegarLoop]: Abstraction has 2312 states and 3564 transitions. [2024-10-24 09:14:39,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 4 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-10-24 09:14:39,874 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3564 transitions. [2024-10-24 09:14:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-24 09:14:39,877 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:14:39,877 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:14:39,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 09:14:39,878 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:14:39,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:14:39,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1601740316, now seen corresponding path program 1 times [2024-10-24 09:14:39,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:14:39,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335366122] [2024-10-24 09:14:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:14:39,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:14:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat