./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-newlib/float_req_bl_0660a.c -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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:07:50,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:07:50,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 03:07:50,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:07:50,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:07:50,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:07:50,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:07:50,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:07:50,304 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:07:50,304 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:07:50,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:07:50,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:07:50,305 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:07:50,305 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:07:50,305 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:07:50,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:07:50,306 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:07:50,306 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:07:50,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:07:50,307 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:07:50,307 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:07:50,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:07:50,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:07:50,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:07:50,308 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2025-03-08 03:07:50,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:07:50,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:07:50,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:07:50,562 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:07:50,562 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:07:50,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-03-08 03:07:51,699 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a35a76/f8b18f10c3c54ae3b2f4d638ce021ba8/FLAGa20ee8caa [2025-03-08 03:07:51,945 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:07:51,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-03-08 03:07:51,954 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a35a76/f8b18f10c3c54ae3b2f4d638ce021ba8/FLAGa20ee8caa [2025-03-08 03:07:52,257 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d93a35a76/f8b18f10c3c54ae3b2f4d638ce021ba8 [2025-03-08 03:07:52,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:07:52,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:07:52,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:07:52,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:07:52,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:07:52,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1712532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52, skipping insertion in model container [2025-03-08 03:07:52,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:07:52,447 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/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-03-08 03:07:52,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:07:52,462 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:07:52,495 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/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-03-08 03:07:52,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:07:52,516 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:07:52,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52 WrapperNode [2025-03-08 03:07:52,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:07:52,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:07:52,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:07:52,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:07:52,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,556 INFO L138 Inliner]: procedures = 20, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 239 [2025-03-08 03:07:52,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:07:52,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:07:52,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:07:52,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:07:52,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,585 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-08 03:07:52,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,593 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:07:52,599 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:07:52,599 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:07:52,599 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:07:52,602 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (1/1) ... [2025-03-08 03:07:52,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:07:52,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:07:52,629 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) [2025-03-08 03:07:52,631 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 [2025-03-08 03:07:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:07:52,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-03-08 03:07:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:07:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-03-08 03:07:52,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-03-08 03:07:52,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:07:52,723 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:07:52,724 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:07:53,062 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-03-08 03:07:53,063 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:07:53,081 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:07:53,082 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:07:53,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:07:53 BoogieIcfgContainer [2025-03-08 03:07:53,082 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:07:53,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:07:53,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:07:53,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:07:53,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:07:52" (1/3) ... [2025-03-08 03:07:53,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d269eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:07:53, skipping insertion in model container [2025-03-08 03:07:53,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:52" (2/3) ... [2025-03-08 03:07:53,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d269eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:07:53, skipping insertion in model container [2025-03-08 03:07:53,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:07:53" (3/3) ... [2025-03-08 03:07:53,092 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2025-03-08 03:07:53,102 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:07:53,104 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0660a.c that has 3 procedures, 100 locations, 1 initial locations, 7 loop locations, and 8 error locations. [2025-03-08 03:07:53,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:07:53,156 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;@27f281be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:07:53,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-08 03:07:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 85 states have (on average 1.8235294117647058) internal successors, (155), 93 states have internal predecessors, (155), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 03:07:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-08 03:07:53,163 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:07:53,164 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-08 03:07:53,164 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2025-03-08 03:07:53,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:07:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 6248094, now seen corresponding path program 1 times [2025-03-08 03:07:53,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 03:07:53,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459623676] [2025-03-08 03:07:53,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:07:53,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 03:07:53,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 03:07:53,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 03:07:53,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:07:53,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:07:53,287 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 03:07:53,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 03:07:53,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 03:07:53,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:07:53,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:07:53,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 03:07:53,348 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 03:07:53,348 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 8 remaining) [2025-03-08 03:07:53,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 8 remaining) [2025-03-08 03:07:53,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location fabs_floatErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 8 remaining) [2025-03-08 03:07:53,350 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2025-03-08 03:07:53,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 8 remaining) [2025-03-08 03:07:53,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 8 remaining) [2025-03-08 03:07:53,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 8 remaining) [2025-03-08 03:07:53,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location atan_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 8 remaining) [2025-03-08 03:07:53,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 03:07:53,355 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 03:07:53,373 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:07:53,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:07:53 BoogieIcfgContainer [2025-03-08 03:07:53,376 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:07:53,376 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:07:53,377 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:07:53,377 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:07:53,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:07:53" (3/4) ... [2025-03-08 03:07:53,379 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 03:07:53,379 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:07:53,381 INFO L158 Benchmark]: Toolchain (without parser) took 1120.10ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 44.4MB in the end (delta: 66.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-08 03:07:53,381 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:07:53,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.71ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 96.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 03:07:53,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.52ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 93.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:07:53,382 INFO L158 Benchmark]: Boogie Preprocessor took 38.87ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:07:53,383 INFO L158 Benchmark]: IcfgBuilder took 483.78ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 66.5MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 03:07:53,383 INFO L158 Benchmark]: TraceAbstraction took 291.46ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 44.4MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 03:07:53,383 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 142.6MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:07:53,384 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.71ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 96.7MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.52ms. Allocated memory is still 142.6MB. Free memory was 95.7MB in the beginning and 93.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.87ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 91.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 483.78ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 66.5MB in the end (delta: 25.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 291.46ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 44.4MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 142.6MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 125]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 125, overapproximation of someBinaryFLOATComparisonOperation at line 226, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someUnaryFLOAToperation at line 219. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L218] float x = __VERIFIER_nondet_float(); [L219] float y = -0.0f; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] COND TRUE x < 0.0f && y == -0.0f [L228] CALL __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=1000000000000000000000000000028, zero_atan2=0] [L125] ieee_float_shape_type gf_u; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, y=1000000000000000000000000000028, zero_atan2=0] - UnprovableResult [Line: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 232]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 204]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 199]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 131]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 167 edges, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-08 03:07:53,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/float-newlib/float_req_bl_0660a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:07:55,239 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:07:55,337 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 03:07:55,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:07:55,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:07:55,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:07:55,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:07:55,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:07:55,370 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:07:55,370 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:07:55,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:07:55,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:07:55,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:07:55,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:07:55,371 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:07:55,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:07:55,372 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:07:55,373 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:07:55,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:07:55,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:07:55,374 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:07:55,375 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2025-03-08 03:07:55,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:07:55,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:07:55,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:07:55,626 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:07:55,626 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:07:55,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-03-08 03:07:56,786 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c5835ff/fafe57fd0ed44e13be26d8b64e24c8a4/FLAGe801083ad [2025-03-08 03:07:56,946 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:07:56,947 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2025-03-08 03:07:56,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c5835ff/fafe57fd0ed44e13be26d8b64e24c8a4/FLAGe801083ad [2025-03-08 03:07:56,971 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49c5835ff/fafe57fd0ed44e13be26d8b64e24c8a4 [2025-03-08 03:07:56,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:07:56,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:07:56,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:07:56,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:07:56,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:07:56,978 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:07:56" (1/1) ... [2025-03-08 03:07:56,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3054c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:56, skipping insertion in model container [2025-03-08 03:07:56,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:07:56" (1/1) ... [2025-03-08 03:07:56,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:07:57,154 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/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-03-08 03:07:57,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:07:57,174 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:07:57,219 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/float-newlib/float_req_bl_0660a.c[5286,5299] [2025-03-08 03:07:57,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:07:57,235 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:07:57,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57 WrapperNode [2025-03-08 03:07:57,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:07:57,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:07:57,236 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:07:57,236 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:07:57,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,274 INFO L138 Inliner]: procedures = 23, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 216 [2025-03-08 03:07:57,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:07:57,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:07:57,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:07:57,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:07:57,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,319 INFO L175 MemorySlicer]: Split 53 memory accesses to 11 slices as follows [2, 7, 7, 23, 2, 2, 2, 2, 2, 2, 2]. 43 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0]. The 19 writes are split as follows [0, 0, 0, 12, 1, 1, 1, 1, 1, 1, 1]. [2025-03-08 03:07:57,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,339 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:07:57,364 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:07:57,364 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:07:57,364 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:07:57,365 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (1/1) ... [2025-03-08 03:07:57,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:07:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:07:57,393 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) [2025-03-08 03:07:57,399 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 [2025-03-08 03:07:57,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 03:07:57,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 03:07:57,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-08 03:07:57,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2025-03-08 03:07:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2025-03-08 03:07:57,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:07:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-08 03:07:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2025-03-08 03:07:57,420 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2025-03-08 03:07:57,420 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2025-03-08 03:07:57,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-03-08 03:07:57,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:07:57,590 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:07:57,592 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:08:22,998 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2025-03-08 03:08:22,998 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:08:23,006 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:08:23,007 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:08:23,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:08:23 BoogieIcfgContainer [2025-03-08 03:08:23,007 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:08:23,009 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:08:23,009 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:08:23,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:08:23,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:07:56" (1/3) ... [2025-03-08 03:08:23,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:08:23, skipping insertion in model container [2025-03-08 03:08:23,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:07:57" (2/3) ... [2025-03-08 03:08:23,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3065481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:08:23, skipping insertion in model container [2025-03-08 03:08:23,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:08:23" (3/3) ... [2025-03-08 03:08:23,014 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2025-03-08 03:08:23,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:08:23,049 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0660a.c that has 3 procedures, 86 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-03-08 03:08:23,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:08:23,091 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;@6cf67007, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:08:23,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 03:08:23,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 03:08:23,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-08 03:08:23,098 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:08:23,098 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:08:23,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:08:23,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:08:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash 641793816, now seen corresponding path program 1 times [2025-03-08 03:08:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:08:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843533626] [2025-03-08 03:08:23,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:08:23,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:23,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:08:23,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:08:23,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-08 03:08:23,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-08 03:08:23,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-08 03:08:23,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:08:23,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:08:23,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 03:08:23,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:08:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:08:23,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:08:23,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:08:23,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843533626] [2025-03-08 03:08:23,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843533626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:08:23,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:08:23,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 03:08:23,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892327939] [2025-03-08 03:08:23,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:08:23,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 03:08:23,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:08:23,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 03:08:23,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:08:23,914 INFO L87 Difference]: Start difference. First operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:08:23,937 INFO L93 Difference]: Finished difference Result 169 states and 276 transitions. [2025-03-08 03:08:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 03:08:23,938 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-08 03:08:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:08:23,943 INFO L225 Difference]: With dead ends: 169 [2025-03-08 03:08:23,943 INFO L226 Difference]: Without dead ends: 82 [2025-03-08 03:08:23,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:08:23,949 INFO L435 NwaCegarLoop]: 123 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, 123 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 [2025-03-08 03:08:23,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 03:08:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-08 03:08:23,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-08 03:08:23,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 75 states have internal predecessors, (110), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-08 03:08:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2025-03-08 03:08:23,981 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 11 [2025-03-08 03:08:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:08:23,981 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2025-03-08 03:08:23,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2025-03-08 03:08:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-08 03:08:23,982 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:08:23,982 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:08:24,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-08 03:08:24,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:24,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:08:24,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:08:24,183 INFO L85 PathProgramCache]: Analyzing trace with hash -499372485, now seen corresponding path program 1 times [2025-03-08 03:08:24,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:08:24,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966038157] [2025-03-08 03:08:24,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:08:24,184 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:24,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:08:24,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:08:24,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-08 03:08:24,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-08 03:08:24,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-08 03:08:24,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:08:24,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:08:24,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-08 03:08:24,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:08:25,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 03:08:25,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-03-08 03:08:29,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-08 03:08:29,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2025-03-08 03:08:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:08:30,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:08:30,484 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:08:30,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966038157] [2025-03-08 03:08:30,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966038157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:08:30,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:08:30,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 03:08:30,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837241722] [2025-03-08 03:08:30,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:08:30,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 03:08:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:08:30,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 03:08:30,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 03:08:30,486 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:36,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-08 03:08:36,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:08:36,498 INFO L93 Difference]: Finished difference Result 153 states and 217 transitions. [2025-03-08 03:08:36,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 03:08:36,500 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-08 03:08:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:08:36,500 INFO L225 Difference]: With dead ends: 153 [2025-03-08 03:08:36,500 INFO L226 Difference]: Without dead ends: 89 [2025-03-08 03:08:36,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2025-03-08 03:08:36,501 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 195 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2025-03-08 03:08:36,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 462 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2025-03-08 03:08:36,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-08 03:08:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2025-03-08 03:08:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 03:08:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2025-03-08 03:08:36,506 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 13 [2025-03-08 03:08:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:08:36,506 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2025-03-08 03:08:36,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:36,507 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2025-03-08 03:08:36,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-08 03:08:36,507 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:08:36,507 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:08:36,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-08 03:08:36,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:36,707 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:08:36,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:08:36,708 INFO L85 PathProgramCache]: Analyzing trace with hash -441409042, now seen corresponding path program 1 times [2025-03-08 03:08:36,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:08:36,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480364310] [2025-03-08 03:08:36,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:08:36,708 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:36,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:08:36,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:08:36,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-08 03:08:36,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-08 03:08:37,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-08 03:08:37,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:08:37,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:08:37,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 03:08:37,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:08:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:08:38,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:08:38,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:08:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480364310] [2025-03-08 03:08:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480364310] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:08:38,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:08:38,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 03:08:38,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058028412] [2025-03-08 03:08:38,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:08:38,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 03:08:38,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:08:38,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 03:08:38,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:08:38,433 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:08:40,023 INFO L93 Difference]: Finished difference Result 139 states and 188 transitions. [2025-03-08 03:08:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 03:08:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-03-08 03:08:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:08:40,025 INFO L225 Difference]: With dead ends: 139 [2025-03-08 03:08:40,025 INFO L226 Difference]: Without dead ends: 77 [2025-03-08 03:08:40,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-08 03:08:40,026 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 129 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-08 03:08:40,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 382 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-08 03:08:40,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-08 03:08:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2025-03-08 03:08:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 69 states have internal predecessors, (92), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 03:08:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2025-03-08 03:08:40,032 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 18 [2025-03-08 03:08:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:08:40,032 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2025-03-08 03:08:40,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2025-03-08 03:08:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-08 03:08:40,032 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:08:40,032 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:08:40,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-08 03:08:40,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:40,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:08:40,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:08:40,234 INFO L85 PathProgramCache]: Analyzing trace with hash -412779891, now seen corresponding path program 1 times [2025-03-08 03:08:40,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:08:40,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333360287] [2025-03-08 03:08:40,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:08:40,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:40,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:08:40,236 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:08:40,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2025-03-08 03:08:40,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-08 03:08:40,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-08 03:08:40,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:08:40,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:08:40,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 03:08:40,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:08:42,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:08:42,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:08:42,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:08:42,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333360287] [2025-03-08 03:08:42,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333360287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:08:42,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:08:42,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 03:08:42,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157789877] [2025-03-08 03:08:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:08:42,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 03:08:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:08:42,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 03:08:42,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:08:42,198 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:43,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:08:43,646 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2025-03-08 03:08:43,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 03:08:43,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-03-08 03:08:43,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:08:43,648 INFO L225 Difference]: With dead ends: 93 [2025-03-08 03:08:43,648 INFO L226 Difference]: Without dead ends: 89 [2025-03-08 03:08:43,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2025-03-08 03:08:43,649 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 147 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 03:08:43,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 309 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 03:08:43,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-08 03:08:43,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2025-03-08 03:08:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 03:08:43,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2025-03-08 03:08:43,654 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 18 [2025-03-08 03:08:43,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:08:43,654 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2025-03-08 03:08:43,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:43,655 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2025-03-08 03:08:43,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-08 03:08:43,655 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:08:43,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:08:43,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2025-03-08 03:08:43,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:43,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:08:43,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:08:43,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1396746031, now seen corresponding path program 1 times [2025-03-08 03:08:43,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:08:43,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191428546] [2025-03-08 03:08:43,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:08:43,857 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:08:43,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:08:43,859 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:08:43,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-03-08 03:08:43,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-08 03:08:44,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-08 03:08:44,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:08:44,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:08:44,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-08 03:08:44,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:08:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:08:46,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:08:46,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:08:46,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191428546] [2025-03-08 03:08:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191428546] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:08:46,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:08:46,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 03:08:46,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071908435] [2025-03-08 03:08:46,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:08:46,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 03:08:46,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:08:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 03:08:46,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 03:08:46,457 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:08:56,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:00,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:04,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:05,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:09,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:13,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:17,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:21,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:24,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:26,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:30,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:33,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-08 03:09:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:09:34,622 INFO L93 Difference]: Finished difference Result 79 states and 100 transitions. [2025-03-08 03:09:34,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 03:09:34,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-03-08 03:09:34,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:09:34,641 INFO L225 Difference]: With dead ends: 79 [2025-03-08 03:09:34,641 INFO L226 Difference]: Without dead ends: 75 [2025-03-08 03:09:34,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:09:34,641 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 82 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.7s IncrementalHoareTripleChecker+Time [2025-03-08 03:09:34,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 207 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 8 Unknown, 0 Unchecked, 47.7s Time] [2025-03-08 03:09:34,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-03-08 03:09:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-03-08 03:09:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-08 03:09:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2025-03-08 03:09:34,651 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 20 [2025-03-08 03:09:34,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:09:34,651 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2025-03-08 03:09:34,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 03:09:34,652 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2025-03-08 03:09:34,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-08 03:09:34,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:09:34,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:09:34,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-03-08 03:09:34,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:09:34,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:09:34,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:09:34,854 INFO L85 PathProgramCache]: Analyzing trace with hash -534954285, now seen corresponding path program 1 times [2025-03-08 03:09:34,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:09:34,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378442917] [2025-03-08 03:09:34,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:09:34,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-08 03:09:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:09:34,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-08 03:09:34,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2025-03-08 03:09:34,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-08 03:09:35,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-08 03:09:35,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:09:35,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:09:35,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-08 03:09:35,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:09:37,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:09:37,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:09:37,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:09:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378442917] [2025-03-08 03:09:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378442917] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:09:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:09:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 03:09:37,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015027510] [2025-03-08 03:09:37,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:09:37,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 03:09:37,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:09:37,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 03:09:37,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 03:09:37,513 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)