./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_fillercodesize_ps-cn-100_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_fillercodesize_ps-cn-100_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 f1f964f933f97d84a1068e8591813edbcbebaf3126218889391821aea3df0be5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 03:03:13,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 03:03:13,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 03:03:13,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 03:03:13,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 03:03:13,477 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 03:03:13,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 03:03:13,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 03:03:13,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 03:03:13,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 03:03:13,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 03:03:13,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 03:03:13,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 03:03:13,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 03:03:13,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 03:03:13,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 03:03:13,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 03:03:13,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 03:03:13,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 03:03:13,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 03:03:13,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 03:03:13,489 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 03:03:13,489 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 03:03:13,489 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 03:03:13,490 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 03:03:13,490 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 03:03:13,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 03:03:13,490 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 03:03:13,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 03:03:13,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 03:03:13,491 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 03:03:13,491 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 03:03:13,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:03:13,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 03:03:13,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 03:03:13,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 03:03:13,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 03:03:13,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 03:03:13,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 03:03:13,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 03:03:13,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 03:03:13,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 03:03:13,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1f964f933f97d84a1068e8591813edbcbebaf3126218889391821aea3df0be5 [2024-11-20 03:03:13,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 03:03:13,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 03:03:13,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 03:03:13,793 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 03:03:13,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 03:03:13,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2024-11-20 03:03:15,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 03:03:15,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 03:03:15,539 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2024-11-20 03:03:15,549 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f388b1a5/3e7f51c012d24891ad716fbffad837cf/FLAGdb83c2ddb [2024-11-20 03:03:15,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f388b1a5/3e7f51c012d24891ad716fbffad837cf [2024-11-20 03:03:15,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 03:03:15,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 03:03:15,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 03:03:15,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 03:03:15,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 03:03:15,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:03:15" (1/1) ... [2024-11-20 03:03:15,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f42266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:15, skipping insertion in model container [2024-11-20 03:03:15,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 03:03:15" (1/1) ... [2024-11-20 03:03:15,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 03:03:15,795 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_fillercodesize_ps-cn-100_file-58.i[916,929] [2024-11-20 03:03:15,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:03:15,928 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 03:03:15,940 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_fillercodesize_ps-cn-100_file-58.i[916,929] [2024-11-20 03:03:16,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 03:03:16,041 INFO L204 MainTranslator]: Completed translation [2024-11-20 03:03:16,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16 WrapperNode [2024-11-20 03:03:16,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 03:03:16,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 03:03:16,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 03:03:16,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 03:03:16,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,115 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 311 [2024-11-20 03:03:16,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 03:03:16,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 03:03:16,117 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 03:03:16,117 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 03:03:16,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,131 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,164 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 03:03:16,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,193 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 03:03:16,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 03:03:16,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 03:03:16,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 03:03:16,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (1/1) ... [2024-11-20 03:03:16,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 03:03:16,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 03:03:16,252 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 03:03:16,255 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 03:03:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 03:03:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 03:03:16,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 03:03:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 03:03:16,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 03:03:16,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 03:03:16,395 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 03:03:16,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 03:03:16,933 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-20 03:03:16,933 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 03:03:16,947 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 03:03:16,948 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 03:03:16,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:03:16 BoogieIcfgContainer [2024-11-20 03:03:16,948 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 03:03:16,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 03:03:16,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 03:03:16,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 03:03:16,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 03:03:15" (1/3) ... [2024-11-20 03:03:16,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53293b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:03:16, skipping insertion in model container [2024-11-20 03:03:16,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 03:03:16" (2/3) ... [2024-11-20 03:03:16,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53293b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 03:03:16, skipping insertion in model container [2024-11-20 03:03:16,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 03:03:16" (3/3) ... [2024-11-20 03:03:16,958 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-58.i [2024-11-20 03:03:16,978 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 03:03:16,978 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 03:03:17,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 03:03:17,064 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;@7276574d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 03:03:17,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 03:03:17,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 84 states have internal predecessors, (121), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:03:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-20 03:03:17,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:03:17,097 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:17,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:03:17,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:03:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash 878136670, now seen corresponding path program 1 times [2024-11-20 03:03:17,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:03:17,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933462023] [2024-11-20 03:03:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:03:17,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:03:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:03:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:03:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:03:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:03:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:03:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:03:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:03:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:03:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 03:03:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:03:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 03:03:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:03:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 03:03:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:03:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 03:03:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:03:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 03:03:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:03:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 03:03:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:03:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 03:03:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 03:03:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 03:03:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 03:03:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:03:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 03:03:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 03:03:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 03:03:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 03:03:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 03:03:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-20 03:03:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 03:03:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-20 03:03:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 03:03:17,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-20 03:03:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-20 03:03:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-20 03:03:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-20 03:03:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-11-20 03:03:17,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-11-20 03:03:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-20 03:03:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-20 03:03:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-20 03:03:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-20 03:03:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-11-20 03:03:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-11-20 03:03:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-20 03:03:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-11-20 03:03:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-20 03:03:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-11-20 03:03:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:17,878 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-20 03:03:17,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:03:17,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933462023] [2024-11-20 03:03:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933462023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:03:17,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:03:17,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 03:03:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830285967] [2024-11-20 03:03:17,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:03:17,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 03:03:17,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:03:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 03:03:17,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 03:03:17,922 INFO L87 Difference]: Start difference. First operand has 136 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 84 states have internal predecessors, (121), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-20 03:03:17,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:03:17,974 INFO L93 Difference]: Finished difference Result 265 states and 486 transitions. [2024-11-20 03:03:17,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 03:03:17,977 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 309 [2024-11-20 03:03:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:03:17,992 INFO L225 Difference]: With dead ends: 265 [2024-11-20 03:03:17,992 INFO L226 Difference]: Without dead ends: 132 [2024-11-20 03:03:17,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 152 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 03:03:18,001 INFO L432 NwaCegarLoop]: 214 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, 214 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 03:03:18,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 03:03:18,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-20 03:03:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-20 03:03:18,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 80 states have (on average 1.425) internal successors, (114), 80 states have internal predecessors, (114), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 03:03:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 214 transitions. [2024-11-20 03:03:18,062 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 214 transitions. Word has length 309 [2024-11-20 03:03:18,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:03:18,063 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 214 transitions. [2024-11-20 03:03:18,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-20 03:03:18,064 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 214 transitions. [2024-11-20 03:03:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-20 03:03:18,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:03:18,070 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:18,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 03:03:18,071 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:03:18,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:03:18,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1291888474, now seen corresponding path program 1 times [2024-11-20 03:03:18,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:03:18,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51298466] [2024-11-20 03:03:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:03:18,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:03:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 03:03:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 03:03:18,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-20 03:03:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 03:03:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 03:03:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 03:03:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 03:03:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 03:03:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 03:03:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 03:03:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 03:03:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 03:03:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-20 03:03:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 03:03:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 03:03:18,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 03:03:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 03:03:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 03:03:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 03:03:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 03:03:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 03:03:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 03:03:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 03:03:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 03:03:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 03:03:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 03:03:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-20 03:03:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-20 03:03:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-20 03:03:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 03:03:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-20 03:03:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-20 03:03:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-20 03:03:18,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-20 03:03:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-20 03:03:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-11-20 03:03:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2024-11-20 03:03:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-11-20 03:03:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-11-20 03:03:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-11-20 03:03:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-20 03:03:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-20 03:03:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-20 03:03:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-20 03:03:18,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2024-11-20 03:03:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-11-20 03:03:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-20 03:03:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-11-20 03:03:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2024-11-20 03:03:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2024-11-20 03:03:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 03:03:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2024-11-20 03:03:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 03:03:18,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51298466] [2024-11-20 03:03:18,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51298466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 03:03:18,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 03:03:18,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 03:03:18,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478421049] [2024-11-20 03:03:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 03:03:18,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 03:03:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 03:03:18,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 03:03:18,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 03:03:18,642 INFO L87 Difference]: Start difference. First operand 132 states and 214 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-20 03:03:19,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 03:03:19,130 INFO L93 Difference]: Finished difference Result 485 states and 780 transitions. [2024-11-20 03:03:19,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 03:03:19,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 309 [2024-11-20 03:03:19,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 03:03:19,139 INFO L225 Difference]: With dead ends: 485 [2024-11-20 03:03:19,139 INFO L226 Difference]: Without dead ends: 356 [2024-11-20 03:03:19,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 03:03:19,143 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 368 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 03:03:19,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 732 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 03:03:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-20 03:03:19,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 347. [2024-11-20 03:03:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 216 states have (on average 1.4351851851851851) internal successors, (310), 219 states have internal predecessors, (310), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 123 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-20 03:03:19,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 562 transitions. [2024-11-20 03:03:19,253 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 562 transitions. Word has length 309 [2024-11-20 03:03:19,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 03:03:19,255 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 562 transitions. [2024-11-20 03:03:19,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2024-11-20 03:03:19,255 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 562 transitions. [2024-11-20 03:03:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-20 03:03:19,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 03:03:19,264 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:19,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 03:03:19,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 03:03:19,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 03:03:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash 12024796, now seen corresponding path program 1 times [2024-11-20 03:03:19,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 03:03:19,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439714152] [2024-11-20 03:03:19,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 03:03:19,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 03:03:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat