./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.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 13108a5c3bacc5ce6e958a5e44015745c2ee93daeeb0571bc9f62449e98a2b62 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 09:17:13,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 09:17:13,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 09:17:13,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 09:17:13,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 09:17:13,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 09:17:13,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 09:17:13,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 09:17:13,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 09:17:13,873 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 09:17:13,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 09:17:13,874 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 09:17:13,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 09:17:13,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 09:17:13,875 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 09:17:13,875 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 09:17:13,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 09:17:13,876 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 09:17:13,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 09:17:13,877 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 09:17:13,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 09:17:13,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 09:17:13,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 09:17:13,881 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 09:17:13,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 09:17:13,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 09:17:13,882 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 09:17:13,883 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 09:17:13,883 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 09:17:13,883 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 09:17:13,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 09:17:13,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 09:17:13,884 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:17:13,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 09:17:13,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 09:17:13,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 09:17:13,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 09:17:13,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 09:17:13,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 09:17:13,890 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 09:17:13,890 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 09:17:13,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 09:17:13,892 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13108a5c3bacc5ce6e958a5e44015745c2ee93daeeb0571bc9f62449e98a2b62 [2024-10-14 09:17:14,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 09:17:14,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 09:17:14,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 09:17:14,203 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 09:17:14,203 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 09:17:14,205 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i [2024-10-14 09:17:15,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 09:17:15,903 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 09:17:15,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i [2024-10-14 09:17:15,916 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cad85b961/7db45207e46e48a9a8712adf23a552a5/FLAGa80155892 [2024-10-14 09:17:15,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cad85b961/7db45207e46e48a9a8712adf23a552a5 [2024-10-14 09:17:15,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 09:17:15,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 09:17:15,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 09:17:15,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 09:17:15,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 09:17:15,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:17:15" (1/1) ... [2024-10-14 09:17:15,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dada65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:15, skipping insertion in model container [2024-10-14 09:17:15,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:17:15" (1/1) ... [2024-10-14 09:17:15,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 09:17:16,163 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i[919,932] [2024-10-14 09:17:16,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:17:16,246 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 09:17:16,261 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i[919,932] [2024-10-14 09:17:16,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 09:17:16,334 INFO L204 MainTranslator]: Completed translation [2024-10-14 09:17:16,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16 WrapperNode [2024-10-14 09:17:16,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 09:17:16,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 09:17:16,337 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 09:17:16,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 09:17:16,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,409 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272 [2024-10-14 09:17:16,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 09:17:16,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 09:17:16,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 09:17:16,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 09:17:16,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,449 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,487 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]. [2024-10-14 09:17:16,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 09:17:16,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 09:17:16,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 09:17:16,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 09:17:16,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (1/1) ... [2024-10-14 09:17:16,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 09:17:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 09:17:16,561 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) [2024-10-14 09:17:16,564 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 [2024-10-14 09:17:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 09:17:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 09:17:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 09:17:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 09:17:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 09:17:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 09:17:16,727 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 09:17:16,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 09:17:17,279 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 09:17:17,280 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 09:17:17,342 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 09:17:17,343 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 09:17:17,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:17:17 BoogieIcfgContainer [2024-10-14 09:17:17,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 09:17:17,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 09:17:17,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 09:17:17,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 09:17:17,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:17:15" (1/3) ... [2024-10-14 09:17:17,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cef94df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:17:17, skipping insertion in model container [2024-10-14 09:17:17,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:17:16" (2/3) ... [2024-10-14 09:17:17,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cef94df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:17:17, skipping insertion in model container [2024-10-14 09:17:17,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:17:17" (3/3) ... [2024-10-14 09:17:17,352 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-58.i [2024-10-14 09:17:17,367 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 09:17:17,368 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 09:17:17,440 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 09:17:17,447 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;@37cbcfa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 09:17:17,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 09:17:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 66 states have internal predecessors, (97), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-14 09:17:17,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-10-14 09:17:17,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 09:17:17,468 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 09:17:17,468 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 09:17:17,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 09:17:17,473 INFO L85 PathProgramCache]: Analyzing trace with hash 180287798, now seen corresponding path program 1 times [2024-10-14 09:17:17,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 09:17:17,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653656556] [2024-10-14 09:17:17,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 09:17:17,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 09:17:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 09:18:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 09:18:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 09:18:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 09:18:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-14 09:18:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 09:18:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 09:18:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 09:18:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-14 09:18:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 09:18:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 09:18:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 09:18:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 09:18:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 09:18:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 09:18:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 09:18:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 09:18:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 09:18:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 09:18:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 09:18:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 09:18:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 09:18:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 09:18:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 09:18:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 09:18:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-14 09:18:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-14 09:18:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 09:18:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-14 09:18:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-14 09:18:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-10-14 09:18:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-10-14 09:18:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-10-14 09:18:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-10-14 09:18:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-10-14 09:18:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-10-14 09:18:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-10-14 09:18:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-10-14 09:18:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-10-14 09:18:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-10-14 09:18:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-10-14 09:18:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-10-14 09:18:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-10-14 09:18:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 09:18:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-10-14 09:18:33,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 09:18:33,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653656556] [2024-10-14 09:18:33,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653656556] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 09:18:33,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 09:18:33,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 09:18:33,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959345268] [2024-10-14 09:18:33,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 09:18:33,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 09:18:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 09:18:33,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 09:18:33,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-10-14 09:18:33,956 INFO L87 Difference]: Start difference. First operand has 111 states, 65 states have (on average 1.4923076923076923) internal successors, (97), 66 states have internal predecessors, (97), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43)