./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-45.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 2db33e14cce996f3ff7abd9391c3db4ba409c9c54c5b298c8b705984adf93aa7 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 21:32:05,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 21:32:05,970 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 21:32:05,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 21:32:05,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 21:32:06,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 21:32:06,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 21:32:06,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 21:32:06,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 21:32:06,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 21:32:06,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 21:32:06,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 21:32:06,012 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 21:32:06,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 21:32:06,014 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 21:32:06,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 21:32:06,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 21:32:06,015 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 21:32:06,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 21:32:06,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 21:32:06,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 21:32:06,020 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 21:32:06,020 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 21:32:06,020 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 21:32:06,020 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 21:32:06,021 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 21:32:06,021 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 21:32:06,021 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 21:32:06,021 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 21:32:06,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 21:32:06,022 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 21:32:06,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 21:32:06,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:32:06,022 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 21:32:06,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 21:32:06,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 21:32:06,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 21:32:06,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 21:32:06,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 21:32:06,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 21:32:06,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 21:32:06,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 21:32:06,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db33e14cce996f3ff7abd9391c3db4ba409c9c54c5b298c8b705984adf93aa7 [2024-11-08 21:32:06,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 21:32:06,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 21:32:06,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 21:32:06,319 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 21:32:06,320 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 21:32:06,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-45.i [2024-11-08 21:32:07,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 21:32:08,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 21:32:08,027 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-45.i [2024-11-08 21:32:08,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb4b3a63/63590f71c34145c2b2ac46124feabf7d/FLAG8b88524fb [2024-11-08 21:32:08,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bb4b3a63/63590f71c34145c2b2ac46124feabf7d [2024-11-08 21:32:08,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 21:32:08,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 21:32:08,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 21:32:08,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 21:32:08,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 21:32:08,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59984d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08, skipping insertion in model container [2024-11-08 21:32:08,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 21:32:08,591 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-pe-co_file-45.i[919,932] [2024-11-08 21:32:08,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:32:08,677 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 21:32:08,687 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-pe-co_file-45.i[919,932] [2024-11-08 21:32:08,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 21:32:08,741 INFO L204 MainTranslator]: Completed translation [2024-11-08 21:32:08,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08 WrapperNode [2024-11-08 21:32:08,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 21:32:08,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 21:32:08,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 21:32:08,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 21:32:08,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,792 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219 [2024-11-08 21:32:08,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 21:32:08,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 21:32:08,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 21:32:08,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 21:32:08,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,843 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]. [2024-11-08 21:32:08,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 21:32:08,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 21:32:08,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 21:32:08,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 21:32:08,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (1/1) ... [2024-11-08 21:32:08,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 21:32:08,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 21:32:08,971 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) [2024-11-08 21:32:08,973 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 [2024-11-08 21:32:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 21:32:09,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 21:32:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 21:32:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 21:32:09,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 21:32:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 21:32:09,117 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 21:32:09,118 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 21:32:09,458 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 21:32:09,458 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 21:32:09,472 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 21:32:09,473 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 21:32:09,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:32:09 BoogieIcfgContainer [2024-11-08 21:32:09,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 21:32:09,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 21:32:09,476 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 21:32:09,479 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 21:32:09,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:32:08" (1/3) ... [2024-11-08 21:32:09,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2324d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:32:09, skipping insertion in model container [2024-11-08 21:32:09,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:32:08" (2/3) ... [2024-11-08 21:32:09,480 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2324d0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:32:09, skipping insertion in model container [2024-11-08 21:32:09,480 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:32:09" (3/3) ... [2024-11-08 21:32:09,483 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-45.i [2024-11-08 21:32:09,498 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 21:32:09,498 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 21:32:09,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 21:32:09,554 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;@7b22917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 21:32:09,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 21:32:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 60 states have (on average 1.4) internal successors, (84), 61 states have internal predecessors, (84), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 21:32:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-08 21:32:09,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:32:09,576 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:32:09,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:32:09,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:32:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1319570276, now seen corresponding path program 1 times [2024-11-08 21:32:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:32:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395012074] [2024-11-08 21:32:09,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:32:09,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:32:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:09,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:32:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:09,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:32:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:09,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:32:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:32:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:32:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:32:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:32:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:32:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:32:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:32:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:32:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:32:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:32:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:32:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:32:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:32:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:32:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:32:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:32:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:32:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 21:32:10,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 21:32:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 21:32:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 21:32:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 21:32:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 21:32:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 21:32:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:32:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:32:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:32:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 21:32:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:32:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-08 21:32:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:32:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-08 21:32:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-08 21:32:10,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:32:10,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395012074] [2024-11-08 21:32:10,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395012074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:32:10,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:32:10,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 21:32:10,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058626771] [2024-11-08 21:32:10,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:32:10,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 21:32:10,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:32:10,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 21:32:10,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:32:10,279 INFO L87 Difference]: Start difference. First operand has 98 states, 60 states have (on average 1.4) internal successors, (84), 61 states have internal predecessors, (84), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-08 21:32:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:32:10,326 INFO L93 Difference]: Finished difference Result 189 states and 337 transitions. [2024-11-08 21:32:10,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 21:32:10,329 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) Word has length 222 [2024-11-08 21:32:10,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:32:10,337 INFO L225 Difference]: With dead ends: 189 [2024-11-08 21:32:10,337 INFO L226 Difference]: Without dead ends: 94 [2024-11-08 21:32:10,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 21:32:10,345 INFO L432 NwaCegarLoop]: 146 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, 146 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 [2024-11-08 21:32:10,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 21:32:10,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-08 21:32:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-08 21:32:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-08 21:32:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 146 transitions. [2024-11-08 21:32:10,399 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 146 transitions. Word has length 222 [2024-11-08 21:32:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:32:10,400 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 146 transitions. [2024-11-08 21:32:10,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-08 21:32:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 146 transitions. [2024-11-08 21:32:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-08 21:32:10,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:32:10,410 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:32:10,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 21:32:10,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:32:10,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:32:10,413 INFO L85 PathProgramCache]: Analyzing trace with hash -594497050, now seen corresponding path program 1 times [2024-11-08 21:32:10,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:32:10,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875572585] [2024-11-08 21:32:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:32:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:32:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 21:32:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 21:32:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 21:32:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 21:32:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 21:32:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 21:32:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 21:32:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 21:32:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 21:32:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 21:32:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 21:32:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 21:32:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 21:32:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 21:32:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 21:32:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 21:32:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 21:32:10,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 21:32:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 21:32:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 21:32:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 21:32:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 21:32:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 21:32:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 21:32:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 21:32:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 21:32:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 21:32:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 21:32:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 21:32:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 21:32:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 21:32:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 21:32:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-08 21:32:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-08 21:32:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-08 21:32:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 21:32:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2024-11-08 21:32:10,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 21:32:10,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875572585] [2024-11-08 21:32:10,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875572585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 21:32:10,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 21:32:10,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 21:32:10,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712912928] [2024-11-08 21:32:10,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 21:32:10,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 21:32:10,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 21:32:10,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 21:32:10,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:32:10,827 INFO L87 Difference]: Start difference. First operand 94 states and 146 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-08 21:32:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 21:32:10,928 INFO L93 Difference]: Finished difference Result 271 states and 422 transitions. [2024-11-08 21:32:10,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 21:32:10,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 222 [2024-11-08 21:32:10,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 21:32:10,934 INFO L225 Difference]: With dead ends: 271 [2024-11-08 21:32:10,935 INFO L226 Difference]: Without dead ends: 180 [2024-11-08 21:32:10,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 21:32:10,938 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 131 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 21:32:10,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 282 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 21:32:10,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-08 21:32:10,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2024-11-08 21:32:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 105 states have (on average 1.2666666666666666) internal successors, (133), 105 states have internal predecessors, (133), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 21:32:10,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 273 transitions. [2024-11-08 21:32:10,985 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 273 transitions. Word has length 222 [2024-11-08 21:32:10,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 21:32:10,985 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 273 transitions. [2024-11-08 21:32:10,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-08 21:32:10,986 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 273 transitions. [2024-11-08 21:32:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-08 21:32:10,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 21:32:10,992 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 21:32:10,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 21:32:10,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 21:32:10,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 21:32:10,993 INFO L85 PathProgramCache]: Analyzing trace with hash -825783837, now seen corresponding path program 1 times [2024-11-08 21:32:10,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 21:32:10,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666547870] [2024-11-08 21:32:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 21:32:10,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 21:32:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat