./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_float.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-benchs/nan_float.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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:48:13,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:48:13,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 02:48:13,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:48:13,270 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:48:13,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:48:13,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:48:13,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:48:13,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:48:13,293 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:48:13,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:48:13,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:48:13,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:48:13,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:48:13,294 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:48:13,295 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:48:13,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:48:13,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:48:13,295 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 -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2025-03-08 02:48:13,533 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:48:13,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:48:13,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:48:13,545 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:48:13,546 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:48:13,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2025-03-08 02:48:14,658 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636727b71/9a8c96eccb414c1a86aed8c701f7b70e/FLAGde798f54a [2025-03-08 02:48:14,893 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:48:14,893 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2025-03-08 02:48:14,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636727b71/9a8c96eccb414c1a86aed8c701f7b70e/FLAGde798f54a [2025-03-08 02:48:14,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/636727b71/9a8c96eccb414c1a86aed8c701f7b70e [2025-03-08 02:48:14,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:48:14,926 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:48:14,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:48:14,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:48:14,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:48:14,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:48:14" (1/1) ... [2025-03-08 02:48:14,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16fd05f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:14, skipping insertion in model container [2025-03-08 02:48:14,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:48:14" (1/1) ... [2025-03-08 02:48:14,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:48:15,044 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-benchs/nan_float.c[434,447] [2025-03-08 02:48:15,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:48:15,058 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:48:15,067 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-benchs/nan_float.c[434,447] [2025-03-08 02:48:15,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:48:15,078 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:48:15,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15 WrapperNode [2025-03-08 02:48:15,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:48:15,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:48:15,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:48:15,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:48:15,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,099 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2025-03-08 02:48:15,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:48:15,100 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:48:15,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:48:15,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:48:15,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,115 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 02:48:15,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,123 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:48:15,123 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:48:15,123 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:48:15,124 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:48:15,124 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (1/1) ... [2025-03-08 02:48:15,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:48:15,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:48:15,149 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 02:48:15,152 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 02:48:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:48:15,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:48:15,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:48:15,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 02:48:15,213 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:48:15,214 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:48:15,269 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2025-03-08 02:48:15,270 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:48:15,277 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:48:15,277 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:48:15,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:15 BoogieIcfgContainer [2025-03-08 02:48:15,277 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:48:15,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:48:15,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:48:15,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:48:15,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:48:14" (1/3) ... [2025-03-08 02:48:15,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66211638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:48:15, skipping insertion in model container [2025-03-08 02:48:15,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:15" (2/3) ... [2025-03-08 02:48:15,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66211638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:48:15, skipping insertion in model container [2025-03-08 02:48:15,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:15" (3/3) ... [2025-03-08 02:48:15,285 INFO L128 eAbstractionObserver]: Analyzing ICFG nan_float.c [2025-03-08 02:48:15,296 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:48:15,298 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nan_float.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 02:48:15,338 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:48:15,348 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;@651fd028, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:48:15,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:48:15,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 02:48:15,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-08 02:48:15,355 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:48:15,355 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-08 02:48:15,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:48:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:48:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1199519, now seen corresponding path program 1 times [2025-03-08 02:48:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:48:15,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238584643] [2025-03-08 02:48:15,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:48:15,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:48:15,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:48:15,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:48:15,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:48:15,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:48:15,425 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 02:48:15,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:48:15,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:48:15,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:48:15,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:48:15,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 02:48:15,443 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 02:48:15,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:48:15,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 02:48:15,448 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 02:48:15,458 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:48:15,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:48:15 BoogieIcfgContainer [2025-03-08 02:48:15,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:48:15,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:48:15,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:48:15,463 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:48:15,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:15" (3/4) ... [2025-03-08 02:48:15,466 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 02:48:15,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:48:15,467 INFO L158 Benchmark]: Toolchain (without parser) took 540.58ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 71.9MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 02:48:15,467 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:15,468 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.65ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 95.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:15,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.12ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:15,469 INFO L158 Benchmark]: Boogie Preprocessor took 22.74ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:15,469 INFO L158 Benchmark]: IcfgBuilder took 153.71ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 84.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:15,470 INFO L158 Benchmark]: TraceAbstraction took 183.44ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 71.9MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:15,470 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 142.6MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:15,471 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.65ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 95.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.12ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 94.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.74ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.8MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 153.71ms. Allocated memory is still 142.6MB. Free memory was 92.8MB in the beginning and 84.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 183.44ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 71.9MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 142.6MB. Free memory is still 71.9MB. 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: 8]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 9 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=9occurred 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, 0.0s 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 02:48:15,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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-benchs/nan_float.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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:48:17,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:48:17,415 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 02:48:17,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:48:17,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:48:17,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:48:17,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:48:17,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:48:17,445 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:48:17,445 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:48:17,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:48:17,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:48:17,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:48:17,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:48:17,446 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:48:17,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:48:17,446 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:48:17,446 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:48:17,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:48:17,447 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:48:17,448 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:48:17,448 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:48:17,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:48:17,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:48:17,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:48:17,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:48:17,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:48:17,449 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:48:17,450 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 -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2025-03-08 02:48:17,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:48:17,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:48:17,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:48:17,704 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:48:17,704 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:48:17,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2025-03-08 02:48:18,897 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61ad0172/2fd2e60cfe7a405daf6eed2b0c065860/FLAG84932b0f4 [2025-03-08 02:48:19,079 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:48:19,080 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2025-03-08 02:48:19,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61ad0172/2fd2e60cfe7a405daf6eed2b0c065860/FLAG84932b0f4 [2025-03-08 02:48:19,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e61ad0172/2fd2e60cfe7a405daf6eed2b0c065860 [2025-03-08 02:48:19,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:48:19,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:48:19,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:48:19,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:48:19,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:48:19,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57796d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19, skipping insertion in model container [2025-03-08 02:48:19,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:48:19,267 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-benchs/nan_float.c[434,447] [2025-03-08 02:48:19,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:48:19,290 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:48:19,300 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-benchs/nan_float.c[434,447] [2025-03-08 02:48:19,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:48:19,314 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:48:19,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19 WrapperNode [2025-03-08 02:48:19,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:48:19,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:48:19,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:48:19,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:48:19,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,330 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,342 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2025-03-08 02:48:19,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:48:19,344 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:48:19,344 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:48:19,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:48:19,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,350 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,359 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 02:48:19,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,368 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:48:19,375 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:48:19,375 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:48:19,375 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:48:19,376 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (1/1) ... [2025-03-08 02:48:19,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:48:19,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:48:19,404 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 02:48:19,407 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 02:48:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:48:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 02:48:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:48:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:48:19,482 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:48:19,483 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:48:19,557 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-08 02:48:19,557 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:48:19,564 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:48:19,565 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:48:19,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:19 BoogieIcfgContainer [2025-03-08 02:48:19,565 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:48:19,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:48:19,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:48:19,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:48:19,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:48:19" (1/3) ... [2025-03-08 02:48:19,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:48:19, skipping insertion in model container [2025-03-08 02:48:19,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:48:19" (2/3) ... [2025-03-08 02:48:19,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f29d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:48:19, skipping insertion in model container [2025-03-08 02:48:19,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:19" (3/3) ... [2025-03-08 02:48:19,574 INFO L128 eAbstractionObserver]: Analyzing ICFG nan_float.c [2025-03-08 02:48:19,586 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:48:19,588 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG nan_float.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 02:48:19,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:48:19,640 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;@1b19251d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:48:19,641 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:48:19,645 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 02:48:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-08 02:48:19,650 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:48:19,650 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-08 02:48:19,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:48:19,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:48:19,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1199519, now seen corresponding path program 1 times [2025-03-08 02:48:19,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 02:48:19,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956116446] [2025-03-08 02:48:19,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:48:19,666 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 02:48:19,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 02:48:19,668 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 02:48:19,671 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 02:48:19,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:48:19,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:48:19,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:48:19,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:48:19,722 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 02:48:19,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:48:19,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:48:19,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:48:19,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:48:19,748 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-08 02:48:19,749 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 02:48:19,750 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:48:19,757 INFO L540 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)] Forceful destruction successful, exit code 0 [2025-03-08 02:48:19,956 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 02:48:19,962 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 02:48:19,972 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:48:19,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:48:19 BoogieIcfgContainer [2025-03-08 02:48:19,976 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:48:19,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:48:19,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:48:19,977 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:48:19,978 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:48:19" (3/4) ... [2025-03-08 02:48:19,979 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-08 02:48:20,001 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-03-08 02:48:20,037 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 02:48:20,038 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 02:48:20,038 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:48:20,040 INFO L158 Benchmark]: Toolchain (without parser) took 924.45ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 55.7MB in the end (delta: 37.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 02:48:20,042 INFO L158 Benchmark]: CDTParser took 1.90ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 37.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:20,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.79ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 82.3MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:20,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.97ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:20,042 INFO L158 Benchmark]: Boogie Preprocessor took 30.74ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:20,042 INFO L158 Benchmark]: IcfgBuilder took 190.16ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 71.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:20,043 INFO L158 Benchmark]: TraceAbstraction took 408.69ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 60.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:48:20,043 INFO L158 Benchmark]: Witness Printer took 61.22ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 55.7MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:48:20,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.90ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 37.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 200.79ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 82.3MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.97ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.74ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 190.16ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 71.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 408.69ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 60.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 61.22ms. Allocated memory is still 117.4MB. Free memory was 60.7MB in the beginning and 55.7MB in the end (delta: 5.0MB). 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 9 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=9occurred 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, 0.0s 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 proved your program to be incorrect! [2025-03-08 02:48:20,065 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE