./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-52.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_codestructure_normal_file-52.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 8a9514002ed578f0f6e59fc15c007062f6d926230410ac9646815da80f07fd2b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 03:22:15,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 03:22:15,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 03:22:15,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 03:22:15,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 03:22:15,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 03:22:15,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 03:22:15,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 03:22:15,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 03:22:15,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 03:22:15,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 03:22:15,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 03:22:15,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 03:22:15,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 03:22:15,525 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 03:22:15,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 03:22:15,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 03:22:15,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 03:22:15,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 03:22:15,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 03:22:15,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 03:22:15,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 03:22:15,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 03:22:15,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 03:22:15,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 03:22:15,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 03:22:15,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 03:22:15,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 03:22:15,529 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 03:22:15,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 03:22:15,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 03:22:15,529 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 03:22:15,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:22:15,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 03:22:15,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 03:22:15,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 03:22:15,530 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 03:22:15,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 03:22:15,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 03:22:15,531 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 03:22:15,531 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 03:22:15,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 03:22:15,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a9514002ed578f0f6e59fc15c007062f6d926230410ac9646815da80f07fd2b [2024-11-10 03:22:15,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 03:22:15,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 03:22:15,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 03:22:15,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 03:22:15,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 03:22:15,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-52.i [2024-11-10 03:22:17,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 03:22:17,372 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 03:22:17,373 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-52.i [2024-11-10 03:22:17,385 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ecba63dd/b9058feaf5374564989b8c3885591807/FLAG4ab08f7bd [2024-11-10 03:22:17,398 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ecba63dd/b9058feaf5374564989b8c3885591807 [2024-11-10 03:22:17,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 03:22:17,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 03:22:17,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 03:22:17,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 03:22:17,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 03:22:17,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ebdecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17, skipping insertion in model container [2024-11-10 03:22:17,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 03:22:17,686 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_codestructure_normal_file-52.i[913,926] [2024-11-10 03:22:17,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:22:17,802 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 03:22:17,812 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_codestructure_normal_file-52.i[913,926] [2024-11-10 03:22:17,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 03:22:17,854 INFO L204 MainTranslator]: Completed translation [2024-11-10 03:22:17,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17 WrapperNode [2024-11-10 03:22:17,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 03:22:17,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 03:22:17,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 03:22:17,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 03:22:17,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,896 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2024-11-10 03:22:17,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 03:22:17,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 03:22:17,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 03:22:17,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 03:22:17,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,931 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]. [2024-11-10 03:22:17,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,937 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,939 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 03:22:17,943 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 03:22:17,943 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 03:22:17,943 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 03:22:17,944 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (1/1) ... [2024-11-10 03:22:17,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 03:22:17,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 03:22:17,982 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) [2024-11-10 03:22:17,986 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 [2024-11-10 03:22:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 03:22:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 03:22:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 03:22:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 03:22:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 03:22:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 03:22:18,095 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 03:22:18,097 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 03:22:18,346 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-10 03:22:18,348 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 03:22:18,361 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 03:22:18,361 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 03:22:18,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:22:18 BoogieIcfgContainer [2024-11-10 03:22:18,362 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 03:22:18,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 03:22:18,365 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 03:22:18,368 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 03:22:18,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:22:17" (1/3) ... [2024-11-10 03:22:18,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73707406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:22:18, skipping insertion in model container [2024-11-10 03:22:18,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:22:17" (2/3) ... [2024-11-10 03:22:18,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73707406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:22:18, skipping insertion in model container [2024-11-10 03:22:18,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:22:18" (3/3) ... [2024-11-10 03:22:18,370 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-52.i [2024-11-10 03:22:18,384 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 03:22:18,384 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 03:22:18,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 03:22:18,444 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;@3bede036, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 03:22:18,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 03:22:18,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 03:22:18,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-10 03:22:18,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:22:18,463 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:22:18,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:22:18,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:22:18,468 INFO L85 PathProgramCache]: Analyzing trace with hash 784542032, now seen corresponding path program 1 times [2024-11-10 03:22:18,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:22:18,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021437737] [2024-11-10 03:22:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:22:18,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:22:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 03:22:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 03:22:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 03:22:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 03:22:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 03:22:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 03:22:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 03:22:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 03:22:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 03:22:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 03:22:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 03:22:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 03:22:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 03:22:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 03:22:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 03:22:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 03:22:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 03:22:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 03:22:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 03:22:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 03:22:18,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 03:22:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 03:22:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 03:22:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 03:22:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 03:22:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-10 03:22:18,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 03:22:18,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021437737] [2024-11-10 03:22:18,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021437737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 03:22:18,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 03:22:18,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 03:22:18,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333827179] [2024-11-10 03:22:18,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 03:22:18,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 03:22:18,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 03:22:18,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 03:22:18,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 03:22:18,940 INFO L87 Difference]: Start difference. First operand has 70 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-10 03:22:19,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 03:22:19,018 INFO L93 Difference]: Finished difference Result 132 states and 229 transitions. [2024-11-10 03:22:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 03:22:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) Word has length 151 [2024-11-10 03:22:19,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 03:22:19,030 INFO L225 Difference]: With dead ends: 132 [2024-11-10 03:22:19,031 INFO L226 Difference]: Without dead ends: 65 [2024-11-10 03:22:19,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 03:22:19,039 INFO L432 NwaCegarLoop]: 98 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, 98 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 [2024-11-10 03:22:19,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 03:22:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-10 03:22:19,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-10 03:22:19,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-10 03:22:19,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 98 transitions. [2024-11-10 03:22:19,082 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 98 transitions. Word has length 151 [2024-11-10 03:22:19,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 03:22:19,083 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 98 transitions. [2024-11-10 03:22:19,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-10 03:22:19,083 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 98 transitions. [2024-11-10 03:22:19,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-10 03:22:19,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 03:22:19,086 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 03:22:19,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 03:22:19,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 03:22:19,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 03:22:19,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1290948944, now seen corresponding path program 1 times [2024-11-10 03:22:19,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 03:22:19,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890731651] [2024-11-10 03:22:19,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 03:22:19,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 03:22:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat