./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-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 2308c76a3d9ec3cbbdeb2f4571a0f2b6a5005ca572f575c4c1b82f2f96e8e722 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 05:21:14,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 05:21:14,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 05:21:14,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 05:21:14,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 05:21:14,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 05:21:14,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 05:21:14,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 05:21:14,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 05:21:14,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 05:21:14,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 05:21:14,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 05:21:14,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 05:21:14,337 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 05:21:14,338 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 05:21:14,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 05:21:14,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 05:21:14,339 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 05:21:14,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 05:21:14,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 05:21:14,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 05:21:14,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 05:21:14,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 05:21:14,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 05:21:14,342 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 05:21:14,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 05:21:14,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 05:21:14,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 05:21:14,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 05:21:14,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 05:21:14,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 05:21:14,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 05:21:14,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:21:14,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 05:21:14,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 05:21:14,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 05:21:14,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 05:21:14,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 05:21:14,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 05:21:14,345 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 05:21:14,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 05:21:14,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 05:21:14,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2308c76a3d9ec3cbbdeb2f4571a0f2b6a5005ca572f575c4c1b82f2f96e8e722 [2024-11-20 05:21:14,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 05:21:14,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 05:21:14,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 05:21:14,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 05:21:14,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 05:21:14,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i [2024-11-20 05:21:15,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 05:21:16,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 05:21:16,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i [2024-11-20 05:21:16,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bdec5a0f/7b7b6132ff1f4b9c8db12e5398b52b08/FLAG6a33876dc [2024-11-20 05:21:16,470 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bdec5a0f/7b7b6132ff1f4b9c8db12e5398b52b08 [2024-11-20 05:21:16,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 05:21:16,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 05:21:16,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 05:21:16,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 05:21:16,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 05:21:16,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34f79b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16, skipping insertion in model container [2024-11-20 05:21:16,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,508 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 05:21:16,659 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i[919,932] [2024-11-20 05:21:16,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:21:16,726 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 05:21:16,741 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i[919,932] [2024-11-20 05:21:16,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:21:16,809 INFO L204 MainTranslator]: Completed translation [2024-11-20 05:21:16,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16 WrapperNode [2024-11-20 05:21:16,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 05:21:16,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 05:21:16,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 05:21:16,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 05:21:16,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,887 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 272 [2024-11-20 05:21:16,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 05:21:16,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 05:21:16,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 05:21:16,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 05:21:16,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,906 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,939 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]. [2024-11-20 05:21:16,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 05:21:16,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 05:21:16,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 05:21:16,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 05:21:16,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (1/1) ... [2024-11-20 05:21:16,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:21:16,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:21:17,012 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) [2024-11-20 05:21:17,018 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 [2024-11-20 05:21:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 05:21:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 05:21:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 05:21:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 05:21:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 05:21:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 05:21:17,145 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 05:21:17,147 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 05:21:17,525 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-20 05:21:17,525 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 05:21:17,541 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 05:21:17,543 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 05:21:17,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:17 BoogieIcfgContainer [2024-11-20 05:21:17,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 05:21:17,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 05:21:17,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 05:21:17,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 05:21:17,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:21:16" (1/3) ... [2024-11-20 05:21:17,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad340eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:21:17, skipping insertion in model container [2024-11-20 05:21:17,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:21:16" (2/3) ... [2024-11-20 05:21:17,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad340eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:21:17, skipping insertion in model container [2024-11-20 05:21:17,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:21:17" (3/3) ... [2024-11-20 05:21:17,552 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-58.i [2024-11-20 05:21:17,566 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 05:21:17,567 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 05:21:17,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 05:21:17,637 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;@22e36e19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 05:21:17,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 05:21:17,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 73 states have internal predecessors, (104), 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) [2024-11-20 05:21:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-20 05:21:17,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:21:17,687 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, 1, 1, 1, 1, 1] [2024-11-20 05:21:17,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:21:17,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:21:17,692 INFO L85 PathProgramCache]: Analyzing trace with hash -948051821, now seen corresponding path program 1 times [2024-11-20 05:21:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:21:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657361053] [2024-11-20 05:21:17,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:21:17,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:21:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:21:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:21:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 05:21:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:21:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:21:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:21:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:21:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:21:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:21:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:21:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 05:21:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:21:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 05:21:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:21:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 05:21:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 05:21:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 05:21:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 05:21:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 05:21:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 05:21:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 05:21:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 05:21:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 05:21:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 05:21:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 05:21:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 05:21:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 05:21:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 05:21:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 05:21:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 05:21:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-20 05:21:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 05:21:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-20 05:21:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 05:21:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-20 05:21:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-20 05:21:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-20 05:21:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-20 05:21:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-11-20 05:21:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-11-20 05:21:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-20 05:21:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-20 05:21:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-11-20 05:21:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:21:18,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-20 05:21:18,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:21:18,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657361053] [2024-11-20 05:21:18,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657361053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:21:18,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:21:18,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 05:21:18,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183064570] [2024-11-20 05:21:18,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:21:18,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 05:21:18,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:21:18,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 05:21:18,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:21:18,292 INFO L87 Difference]: Start difference. First operand has 118 states, 72 states have (on average 1.4444444444444444) internal successors, (104), 73 states have internal predecessors, (104), 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 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-20 05:21:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:21:18,322 INFO L93 Difference]: Finished difference Result 229 states and 417 transitions. [2024-11-20 05:21:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 05:21:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) Word has length 264 [2024-11-20 05:21:18,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:21:18,335 INFO L225 Difference]: With dead ends: 229 [2024-11-20 05:21:18,335 INFO L226 Difference]: Without dead ends: 114 [2024-11-20 05:21:18,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:21:18,341 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:21:18,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:21:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-20 05:21:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-20 05:21:18,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 69 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) [2024-11-20 05:21:18,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 183 transitions. [2024-11-20 05:21:18,386 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 183 transitions. Word has length 264 [2024-11-20 05:21:18,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:21:18,386 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 183 transitions. [2024-11-20 05:21:18,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 1 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-20 05:21:18,386 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 183 transitions. [2024-11-20 05:21:18,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-20 05:21:18,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:21:18,395 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, 1, 1, 1, 1, 1] [2024-11-20 05:21:18,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 05:21:18,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:21:18,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:21:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2077913369, now seen corresponding path program 1 times [2024-11-20 05:21:18,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:21:18,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772704752] [2024-11-20 05:21:18,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:21:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:21:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat