./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 bcbe3dc24022b24f123b951a18829c99d17fb6c84443031a1458b3b1b90464fa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 09:40:03,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 09:40:03,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 09:40:03,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 09:40:03,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 09:40:03,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 09:40:03,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 09:40:03,951 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 09:40:03,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 09:40:03,952 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 09:40:03,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 09:40:03,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 09:40:03,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 09:40:03,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 09:40:03,954 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 09:40:03,955 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 09:40:03,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 09:40:03,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 09:40:03,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 09:40:03,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 09:40:03,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 09:40:03,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 09:40:03,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 09:40:03,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 09:40:03,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 09:40:03,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 09:40:03,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 09:40:03,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 09:40:03,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 09:40:03,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 09:40:03,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 09:40:03,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 09:40:03,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 09:40:03,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 09:40:03,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 09:40:03,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 09:40:03,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 09:40:03,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 09:40:03,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 09:40:03,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 09:40:03,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 09:40:03,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 09:40:03,970 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcbe3dc24022b24f123b951a18829c99d17fb6c84443031a1458b3b1b90464fa [2024-10-11 09:40:04,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 09:40:04,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 09:40:04,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 09:40:04,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 09:40:04,253 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 09:40:04,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i [2024-10-11 09:40:05,738 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 09:40:05,940 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 09:40:05,941 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i [2024-10-11 09:40:05,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9d95aee11/23fc59a3298441d19ad85518cc354267/FLAGec73dd141 [2024-10-11 09:40:06,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9d95aee11/23fc59a3298441d19ad85518cc354267 [2024-10-11 09:40:06,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 09:40:06,312 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 09:40:06,313 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 09:40:06,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 09:40:06,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 09:40:06,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bf5ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06, skipping insertion in model container [2024-10-11 09:40:06,320 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 09:40:06,557 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i[919,932] [2024-10-11 09:40:06,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 09:40:06,653 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 09:40:06,663 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i[919,932] [2024-10-11 09:40:06,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 09:40:06,741 INFO L204 MainTranslator]: Completed translation [2024-10-11 09:40:06,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06 WrapperNode [2024-10-11 09:40:06,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 09:40:06,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 09:40:06,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 09:40:06,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 09:40:06,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,807 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239 [2024-10-11 09:40:06,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 09:40:06,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 09:40:06,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 09:40:06,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 09:40:06,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,820 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,841 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]. [2024-10-11 09:40:06,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 09:40:06,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 09:40:06,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 09:40:06,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 09:40:06,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (1/1) ... [2024-10-11 09:40:06,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 09:40:06,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 09:40:06,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 09:40:06,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 09:40:06,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 09:40:06,964 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 09:40:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 09:40:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 09:40:06,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 09:40:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 09:40:07,086 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 09:40:07,088 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 09:40:07,494 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-11 09:40:07,495 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 09:40:07,546 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 09:40:07,547 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 09:40:07,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:40:07 BoogieIcfgContainer [2024-10-11 09:40:07,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 09:40:07,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 09:40:07,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 09:40:07,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 09:40:07,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 09:40:06" (1/3) ... [2024-10-11 09:40:07,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eef76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:40:07, skipping insertion in model container [2024-10-11 09:40:07,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:40:06" (2/3) ... [2024-10-11 09:40:07,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eef76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:40:07, skipping insertion in model container [2024-10-11 09:40:07,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:40:07" (3/3) ... [2024-10-11 09:40:07,559 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-45.i [2024-10-11 09:40:07,577 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 09:40:07,577 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 09:40:07,635 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 09:40:07,642 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;@1e2ec777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 09:40:07,642 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 09:40:07,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-11 09:40:07,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-10-11 09:40:07,665 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:40:07,666 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:40:07,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:40:07,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:40:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1193448130, now seen corresponding path program 1 times [2024-10-11 09:40:07,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:40:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441285674] [2024-10-11 09:40:07,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:40:07,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:40:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:40:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:40:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:40:08,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:40:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:40:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:40:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:40:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:40:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:40:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:40:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:40:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:40:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 09:40:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:40:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 09:40:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:40:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 09:40:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:40:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 09:40:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 09:40:08,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 09:40:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 09:40:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 09:40:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 09:40:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 09:40:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 09:40:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 09:40:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 09:40:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 09:40:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 09:40:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-11 09:40:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 09:40:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 09:40:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 09:40:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 09:40:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 09:40:08,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 09:40:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 09:40:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 09:40:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 09:40:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-11 09:40:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:08,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 09:40:08,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:40:08,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441285674] [2024-10-11 09:40:08,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441285674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:40:08,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:40:08,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 09:40:08,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870264104] [2024-10-11 09:40:08,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:40:08,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 09:40:08,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:40:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 09:40:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:40:08,621 INFO L87 Difference]: Start difference. First operand has 100 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 57 states have internal predecessors, (80), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:08,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:40:08,740 INFO L93 Difference]: Finished difference Result 250 states and 466 transitions. [2024-10-11 09:40:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 09:40:08,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250 [2024-10-11 09:40:08,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:40:08,758 INFO L225 Difference]: With dead ends: 250 [2024-10-11 09:40:08,758 INFO L226 Difference]: Without dead ends: 151 [2024-10-11 09:40:08,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:40:08,769 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 76 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:40:08,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 341 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:40:08,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-11 09:40:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2024-10-11 09:40:08,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3863636363636365) internal successors, (122), 89 states have internal predecessors, (122), 57 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-11 09:40:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 236 transitions. [2024-10-11 09:40:08,859 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 236 transitions. Word has length 250 [2024-10-11 09:40:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:40:08,862 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 236 transitions. [2024-10-11 09:40:08,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 236 transitions. [2024-10-11 09:40:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-10-11 09:40:08,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:40:08,867 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:40:08,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 09:40:08,867 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:40:08,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:40:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash 182330880, now seen corresponding path program 1 times [2024-10-11 09:40:08,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:40:08,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633089513] [2024-10-11 09:40:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:40:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:40:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:40:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:40:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:40:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:40:09,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:40:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:40:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:40:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:40:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:40:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:40:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:40:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:40:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 09:40:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:40:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 09:40:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:40:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 09:40:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:40:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 09:40:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 09:40:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 09:40:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 09:40:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 09:40:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 09:40:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 09:40:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 09:40:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 09:40:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 09:40:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 09:40:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 09:40:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-11 09:40:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 09:40:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 09:40:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 09:40:09,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 09:40:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 09:40:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 09:40:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 09:40:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 09:40:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 09:40:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-11 09:40:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:09,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 09:40:09,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:40:09,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633089513] [2024-10-11 09:40:09,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633089513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:40:09,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:40:09,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 09:40:09,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848310188] [2024-10-11 09:40:09,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:40:09,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 09:40:09,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:40:09,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 09:40:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:40:09,192 INFO L87 Difference]: Start difference. First operand 148 states and 236 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:09,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:40:09,300 INFO L93 Difference]: Finished difference Result 436 states and 694 transitions. [2024-10-11 09:40:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 09:40:09,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 250 [2024-10-11 09:40:09,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:40:09,310 INFO L225 Difference]: With dead ends: 436 [2024-10-11 09:40:09,310 INFO L226 Difference]: Without dead ends: 289 [2024-10-11 09:40:09,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 09:40:09,313 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 144 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 09:40:09,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 306 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 09:40:09,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-10-11 09:40:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 287. [2024-10-11 09:40:09,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 168 states have (on average 1.3333333333333333) internal successors, (224), 170 states have internal predecessors, (224), 114 states have call successors, (114), 4 states have call predecessors, (114), 4 states have return successors, (114), 112 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-11 09:40:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 452 transitions. [2024-10-11 09:40:09,418 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 452 transitions. Word has length 250 [2024-10-11 09:40:09,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:40:09,422 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 452 transitions. [2024-10-11 09:40:09,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:09,423 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 452 transitions. [2024-10-11 09:40:09,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-11 09:40:09,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:40:09,428 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:40:09,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 09:40:09,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:40:09,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:40:09,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1607842370, now seen corresponding path program 1 times [2024-10-11 09:40:09,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:40:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032457096] [2024-10-11 09:40:09,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:40:09,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:40:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:40:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:40:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:40:37,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:40:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:40:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:40:37,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:40:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:40:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:40:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:40:37,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:40:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:40:37,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 09:40:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:40:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 09:40:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:40:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 09:40:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:40:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 09:40:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 09:40:37,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 09:40:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 09:40:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 09:40:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 09:40:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 09:40:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 09:40:37,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 09:40:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 09:40:37,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 09:40:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 09:40:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-11 09:40:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 09:40:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 09:40:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 09:40:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 09:40:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 09:40:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 09:40:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 09:40:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 09:40:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 09:40:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-11 09:40:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 09:40:37,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:40:37,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032457096] [2024-10-11 09:40:37,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032457096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:40:37,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:40:37,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 09:40:37,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547967083] [2024-10-11 09:40:37,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:40:37,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 09:40:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:40:37,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 09:40:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 09:40:37,365 INFO L87 Difference]: Start difference. First operand 287 states and 452 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:37,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:40:37,983 INFO L93 Difference]: Finished difference Result 841 states and 1303 transitions. [2024-10-11 09:40:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 09:40:37,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 251 [2024-10-11 09:40:37,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:40:37,991 INFO L225 Difference]: With dead ends: 841 [2024-10-11 09:40:37,991 INFO L226 Difference]: Without dead ends: 555 [2024-10-11 09:40:37,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 09:40:37,994 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 109 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 09:40:37,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 386 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 09:40:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-11 09:40:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 457. [2024-10-11 09:40:38,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 302 states have (on average 1.3973509933774835) internal successors, (422), 308 states have internal predecessors, (422), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 140 states have call predecessors, (146), 146 states have call successors, (146) [2024-10-11 09:40:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 714 transitions. [2024-10-11 09:40:38,109 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 714 transitions. Word has length 251 [2024-10-11 09:40:38,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:40:38,113 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 714 transitions. [2024-10-11 09:40:38,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:38,114 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 714 transitions. [2024-10-11 09:40:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-11 09:40:38,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:40:38,120 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:40:38,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 09:40:38,121 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:40:38,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:40:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1986060348, now seen corresponding path program 1 times [2024-10-11 09:40:38,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:40:38,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684293596] [2024-10-11 09:40:38,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:40:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:40:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 09:40:39,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 09:40:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 09:40:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 09:40:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 09:40:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 09:40:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 09:40:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 09:40:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 09:40:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 09:40:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 09:40:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 09:40:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 09:40:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 09:40:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 09:40:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 09:40:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 09:40:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 09:40:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 09:40:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 09:40:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 09:40:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 09:40:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 09:40:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 09:40:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 09:40:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 09:40:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 09:40:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 09:40:39,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 09:40:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 09:40:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-11 09:40:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 09:40:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-11 09:40:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-11 09:40:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-11 09:40:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-11 09:40:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-10-11 09:40:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-11 09:40:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-10-11 09:40:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-11 09:40:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-10-11 09:40:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 09:40:39,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 09:40:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 09:40:39,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684293596] [2024-10-11 09:40:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684293596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 09:40:39,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 09:40:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 09:40:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627439063] [2024-10-11 09:40:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 09:40:39,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 09:40:39,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 09:40:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 09:40:39,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 09:40:39,782 INFO L87 Difference]: Start difference. First operand 457 states and 714 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 09:40:40,379 INFO L93 Difference]: Finished difference Result 1011 states and 1563 transitions. [2024-10-11 09:40:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 09:40:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 251 [2024-10-11 09:40:40,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 09:40:40,385 INFO L225 Difference]: With dead ends: 1011 [2024-10-11 09:40:40,386 INFO L226 Difference]: Without dead ends: 555 [2024-10-11 09:40:40,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-11 09:40:40,389 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 98 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 09:40:40,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 532 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 09:40:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-11 09:40:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 439. [2024-10-11 09:40:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 284 states have (on average 1.380281690140845) internal successors, (392), 290 states have internal predecessors, (392), 146 states have call successors, (146), 8 states have call predecessors, (146), 8 states have return successors, (146), 140 states have call predecessors, (146), 146 states have call successors, (146) [2024-10-11 09:40:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 684 transitions. [2024-10-11 09:40:40,482 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 684 transitions. Word has length 251 [2024-10-11 09:40:40,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 09:40:40,482 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 684 transitions. [2024-10-11 09:40:40,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 09:40:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 684 transitions. [2024-10-11 09:40:40,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-11 09:40:40,486 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 09:40:40,486 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 09:40:40,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 09:40:40,487 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 09:40:40,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 09:40:40,488 INFO L85 PathProgramCache]: Analyzing trace with hash -635366722, now seen corresponding path program 1 times [2024-10-11 09:40:40,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 09:40:40,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012106414] [2024-10-11 09:40:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 09:40:40,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 09:40:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat