./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:48:46,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:48:46,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:48:46,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:48:46,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:48:46,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:48:46,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:48:46,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:48:46,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:48:46,590 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:48:46,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:48:46,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:48:46,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:48:46,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:48:46,591 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:48:46,592 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:46,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:46,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:48:46,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:48:46,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:48:46,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:48:46,593 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-jdk21/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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-01-09 00:48:46,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:48:46,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:48:46,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:48:46,798 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:48:46,798 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:48:46,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-01-09 00:48:47,902 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35b86e3c/e257440dbda34a8a968d6330d3e2f94c/FLAG0df14a0f7 [2025-01-09 00:48:48,179 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:48:48,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-01-09 00:48:48,188 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35b86e3c/e257440dbda34a8a968d6330d3e2f94c/FLAG0df14a0f7 [2025-01-09 00:48:48,197 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a35b86e3c/e257440dbda34a8a968d6330d3e2f94c [2025-01-09 00:48:48,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:48:48,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:48:48,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:48:48,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:48:48,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:48:48,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d2d9e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48, skipping insertion in model container [2025-01-09 00:48:48,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:48:48,575 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-01-09 00:48:48,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:48:48,585 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:48:48,618 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-01-09 00:48:48,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:48:48,682 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:48:48,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48 WrapperNode [2025-01-09 00:48:48,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:48:48,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:48:48,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:48:48,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:48:48,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,716 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2025-01-09 00:48:48,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:48:48,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:48:48,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:48:48,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:48:48,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,740 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]. [2025-01-09 00:48:48,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,744 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,748 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:48:48,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:48:48,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:48:48,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:48:48,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (1/1) ... [2025-01-09 00:48:48,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:48,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:48:48,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 00:48:48,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 00:48:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:48:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:48:48,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:48:48,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:48:48,861 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:48:48,862 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:48:48,917 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-01-09 00:48:48,917 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:48:48,923 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:48:48,923 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:48:48,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:48 BoogieIcfgContainer [2025-01-09 00:48:48,923 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:48:48,925 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:48:48,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:48:48,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:48:48,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:48:48" (1/3) ... [2025-01-09 00:48:48,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de7a564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:48:48, skipping insertion in model container [2025-01-09 00:48:48,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:48" (2/3) ... [2025-01-09 00:48:48,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de7a564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:48:48, skipping insertion in model container [2025-01-09 00:48:48,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:48" (3/3) ... [2025-01-09 00:48:48,930 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-01-09 00:48:48,940 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:48:48,941 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 17 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:48:48,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:48:48,979 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;@2140bb5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:48:48,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:48:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2025-01-09 00:48:48,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-09 00:48:48,985 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:48:48,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-09 00:48:48,986 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:48:48,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:48:48,989 INFO L85 PathProgramCache]: Analyzing trace with hash 28722624, now seen corresponding path program 1 times [2025-01-09 00:48:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:48:48,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105453886] [2025-01-09 00:48:48,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:48:48,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:48:49,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-09 00:48:49,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-09 00:48:49,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:48:49,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:48:49,047 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:48:49,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-09 00:48:49,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-09 00:48:49,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:48:49,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:48:49,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 00:48:49,064 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:48:49,064 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:48:49,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:48:49,068 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 00:48:49,077 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:48:49,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:48:49 BoogieIcfgContainer [2025-01-09 00:48:49,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:48:49,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:48:49,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:48:49,080 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:48:49,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:48" (3/4) ... [2025-01-09 00:48:49,082 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 00:48:49,083 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:48:49,083 INFO L158 Benchmark]: Toolchain (without parser) took 883.53ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 41.7MB in the end (delta: 69.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 00:48:49,084 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:49,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 67.7MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 00:48:49,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.46ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 65.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:49,084 INFO L158 Benchmark]: Boogie Preprocessor took 30.89ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 64.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:49,085 INFO L158 Benchmark]: RCFGBuilder took 174.92ms. Allocated memory is still 142.6MB. Free memory was 64.3MB in the beginning and 54.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:49,085 INFO L158 Benchmark]: TraceAbstraction took 154.82ms. Allocated memory is still 142.6MB. Free memory was 53.5MB in the beginning and 42.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:49,085 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 142.6MB. Free memory was 42.2MB in the beginning and 41.7MB in the end (delta: 453.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:49,086 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 67.7MB in the end (delta: 43.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.46ms. Allocated memory is still 142.6MB. Free memory was 67.7MB in the beginning and 65.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.89ms. Allocated memory is still 142.6MB. Free memory was 65.8MB in the beginning and 64.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 174.92ms. Allocated memory is still 142.6MB. Free memory was 64.3MB in the beginning and 54.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 154.82ms. Allocated memory is still 142.6MB. Free memory was 53.5MB in the beginning and 42.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 142.6MB. Free memory was 42.2MB in the beginning and 41.7MB in the end (delta: 453.2kB). 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: 969]: 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 969, overapproximation of to_real at line 965, overapproximation of someBinaryArithmeticFLOAToperation at line 967, overapproximation of someUnaryFLOAToperation at line 963. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; [L969] EXPR result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target)) [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 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=17occurred 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, 5 NumberOfCodeBlocks, 5 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 [2025-01-09 00:48:49,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:48:51,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:48:51,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 00:48:51,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:48:51,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:48:51,140 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:48:51,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:48:51,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:48:51,141 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:48:51,141 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:48:51,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:48:51,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:48:51,143 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:48:51,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:48:51,143 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:48:51,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 00:48:51,144 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:48:51,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:48:51,145 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:48:51,145 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:48:51,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:48:51,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:51,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:51,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:48:51,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:48:51,146 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-jdk21/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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-01-09 00:48:51,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:48:51,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:48:51,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:48:51,411 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:48:51,411 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:48:51,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-01-09 00:48:52,651 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b6b763c6/68dc3a050c4a42cb9d96065644afc648/FLAGa89a4b942 [2025-01-09 00:48:52,904 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:48:52,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-01-09 00:48:52,915 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b6b763c6/68dc3a050c4a42cb9d96065644afc648/FLAGa89a4b942 [2025-01-09 00:48:52,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b6b763c6/68dc3a050c4a42cb9d96065644afc648 [2025-01-09 00:48:52,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:48:52,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:48:52,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:48:52,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:48:52,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:48:52,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:48:52" (1/1) ... [2025-01-09 00:48:52,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0072dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:52, skipping insertion in model container [2025-01-09 00:48:52,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:48:52" (1/1) ... [2025-01-09 00:48:52,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:48:53,298 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-01-09 00:48:53,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:48:53,313 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:48:53,349 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-01-09 00:48:53,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:48:53,429 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:48:53,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53 WrapperNode [2025-01-09 00:48:53,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:48:53,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:48:53,434 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:48:53,434 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:48:53,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,465 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-01-09 00:48:53,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:48:53,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:48:53,466 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:48:53,466 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:48:53,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,477 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]. [2025-01-09 00:48:53,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:48:53,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:48:53,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:48:53,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:48:53,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (1/1) ... [2025-01-09 00:48:53,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:48:53,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:48:53,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 00:48:53,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 00:48:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 00:48:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:48:53,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:48:53,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:48:53,616 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:48:53,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:48:53,703 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-01-09 00:48:53,703 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:48:53,709 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:48:53,709 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:48:53,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:53 BoogieIcfgContainer [2025-01-09 00:48:53,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:48:53,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:48:53,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:48:53,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:48:53,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:48:52" (1/3) ... [2025-01-09 00:48:53,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ff7e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:48:53, skipping insertion in model container [2025-01-09 00:48:53,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:48:53" (2/3) ... [2025-01-09 00:48:53,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28ff7e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:48:53, skipping insertion in model container [2025-01-09 00:48:53,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:53" (3/3) ... [2025-01-09 00:48:53,716 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-01-09 00:48:53,725 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:48:53,728 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:48:53,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:48:53,767 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;@41aeeeb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:48:53,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:48:53,770 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) [2025-01-09 00:48:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 00:48:53,773 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:48:53,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 00:48:53,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:48:53,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:48:53,777 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2025-01-09 00:48:53,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:48:53,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795352958] [2025-01-09 00:48:53,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:48:53,784 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 [2025-01-09 00:48:53,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:48:53,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-01-09 00:48:53,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 00:48:53,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 00:48:53,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 00:48:53,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:48:53,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:48:53,871 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:48:53,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 00:48:53,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 00:48:53,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:48:53,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:48:53,911 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-09 00:48:53,912 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:48:53,913 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:48:53,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 00:48:54,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-01-09 00:48:54,121 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 00:48:54,131 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:48:54,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:48:54 BoogieIcfgContainer [2025-01-09 00:48:54,133 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:48:54,134 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:48:54,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:48:54,134 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:48:54,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:48:53" (3/4) ... [2025-01-09 00:48:54,136 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 00:48:54,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:48:54,138 INFO L158 Benchmark]: Toolchain (without parser) took 1206.59ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 26.6MB in the end (delta: 31.6MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2025-01-09 00:48:54,138 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:54,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 499.70ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 51.3MB in the end (delta: 6.9MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2025-01-09 00:48:54,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.26ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 49.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:54,138 INFO L158 Benchmark]: Boogie Preprocessor took 16.80ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:54,139 INFO L158 Benchmark]: RCFGBuilder took 226.03ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 38.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:54,139 INFO L158 Benchmark]: TraceAbstraction took 422.89ms. Allocated memory is still 83.9MB. Free memory was 37.9MB in the beginning and 26.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:48:54,139 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 83.9MB. Free memory is still 26.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:48:54,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory was 61.4MB in the beginning and 61.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 499.70ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 51.3MB in the end (delta: 6.9MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.26ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 49.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.80ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.03ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 38.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 422.89ms. Allocated memory is still 83.9MB. Free memory was 37.9MB in the beginning and 26.6MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 83.9MB. Free memory is still 26.6MB. 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: 969]: 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 __signbitl at line 969. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; VAL [result=0.0, target=0.0] [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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 [2025-01-09 00:48:54,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample