./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 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/floats-cbmc-regression/float-no-simp8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:42:41,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:42:41,946 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 02:42:41,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:42:41,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:42:41,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:42:41,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:42:41,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:42:41,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:42:41,977 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:42:41,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:42:41,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:42:41,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:42:41,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:42:41,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:42:41,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:42:41,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:42:41,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:42:41,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:42:41,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:42:41,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:42:41,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:42:41,981 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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-03-08 02:42:42,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:42:42,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:42:42,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:42:42,197 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:42:42,197 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:42:42,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-03-08 02:42:43,360 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a49fe36/79c952b2bcc24c75b95022d2b50b1f09/FLAGfe7e1de13 [2025-03-08 02:42:43,600 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:42:43,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-03-08 02:42:43,609 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a49fe36/79c952b2bcc24c75b95022d2b50b1f09/FLAGfe7e1de13 [2025-03-08 02:42:43,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90a49fe36/79c952b2bcc24c75b95022d2b50b1f09 [2025-03-08 02:42:43,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:42:43,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:42:43,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:42:43,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:42:43,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:42:43,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:42:43" (1/1) ... [2025-03-08 02:42:43,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dc9e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:43, skipping insertion in model container [2025-03-08 02:42:43,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:42:43" (1/1) ... [2025-03-08 02:42:43,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:42:44,000 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/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-03-08 02:42:44,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:42:44,010 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:42:44,037 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/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-03-08 02:42:44,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:42:44,091 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:42:44,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44 WrapperNode [2025-03-08 02:42:44,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:42:44,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:42:44,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:42:44,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:42:44,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,127 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2025-03-08 02:42:44,130 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:42:44,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:42:44,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:42:44,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:42:44,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,149 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 02:42:44,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,154 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,155 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,159 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:42:44,161 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:42:44,161 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:42:44,161 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:42:44,161 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (1/1) ... [2025-03-08 02:42:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:42:44,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:42:44,188 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 02:42:44,190 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 02:42:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:42:44,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:42:44,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:42:44,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 02:42:44,270 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:42:44,272 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:42:44,340 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-03-08 02:42:44,340 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:42:44,345 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:42:44,346 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:42:44,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:44 BoogieIcfgContainer [2025-03-08 02:42:44,346 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:42:44,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:42:44,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:42:44,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:42:44,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:42:43" (1/3) ... [2025-03-08 02:42:44,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac8a43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:42:44, skipping insertion in model container [2025-03-08 02:42:44,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:44" (2/3) ... [2025-03-08 02:42:44,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac8a43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:42:44, skipping insertion in model container [2025-03-08 02:42:44,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:44" (3/3) ... [2025-03-08 02:42:44,353 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-03-08 02:42:44,362 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:42:44,364 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. [2025-03-08 02:42:44,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:42:44,408 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;@7a1217fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:42:44,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:42:44,411 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) [2025-03-08 02:42:44,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-08 02:42:44,416 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:42:44,416 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-08 02:42:44,417 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:42:44,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:42:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash 48637330, now seen corresponding path program 1 times [2025-03-08 02:42:44,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 02:42:44,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602366529] [2025-03-08 02:42:44,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:42:44,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 02:42:44,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 02:42:44,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 02:42:44,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:42:44,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:42:44,492 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 02:42:44,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-08 02:42:44,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-08 02:42:44,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:42:44,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:42:44,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 02:42:44,511 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 02:42:44,511 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:42:44,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 02:42:44,516 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 02:42:44,524 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:42:44,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:42:44 BoogieIcfgContainer [2025-03-08 02:42:44,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:42:44,527 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:42:44,527 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:42:44,527 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:42:44,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:44" (3/4) ... [2025-03-08 02:42:44,529 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 02:42:44,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:42:44,530 INFO L158 Benchmark]: Toolchain (without parser) took 908.60ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 40.7MB in the end (delta: 69.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-08 02:42:44,530 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.89ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 67.4MB in the end (delta: 43.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.86ms. Allocated memory is still 142.6MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 63.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: IcfgBuilder took 185.66ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 53.3MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: TraceAbstraction took 178.66ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 41.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:44,531 INFO L158 Benchmark]: Witness Printer took 2.62ms. Allocated memory is still 142.6MB. Free memory was 41.1MB in the beginning and 40.7MB in the end (delta: 441.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:44,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 125.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.89ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 67.4MB in the end (delta: 43.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.86ms. Allocated memory is still 142.6MB. Free memory was 67.4MB in the beginning and 65.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 65.3MB in the beginning and 63.9MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 185.66ms. Allocated memory is still 142.6MB. Free memory was 63.9MB in the beginning and 53.3MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 178.66ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 41.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.62ms. Allocated memory is still 142.6MB. Free memory was 41.1MB in the beginning and 40.7MB in the end (delta: 441.5kB). 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, 22 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=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 [2025-03-08 02:42:44,545 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/floats-cbmc-regression/float-no-simp8.i -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 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 02:42:46,296 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 02:42:46,371 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 02:42:46,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 02:42:46,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 02:42:46,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 02:42:46,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 02:42:46,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 02:42:46,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 02:42:46,399 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 02:42:46,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 02:42:46,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 02:42:46,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 02:42:46,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 02:42:46,400 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 02:42:46,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 02:42:46,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 02:42:46,402 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 02:42:46,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:42:46,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 02:42:46,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 02:42:46,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 02:42:46,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 02:42:46,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 02:42:46,404 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 -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-03-08 02:42:46,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 02:42:46,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 02:42:46,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 02:42:46,645 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 02:42:46,645 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 02:42:46,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-03-08 02:42:47,822 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d58298f/21863d085eea4d20a80ad4cda5914c4a/FLAGfa8f5f4d8 [2025-03-08 02:42:48,015 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 02:42:48,017 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2025-03-08 02:42:48,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d58298f/21863d085eea4d20a80ad4cda5914c4a/FLAGfa8f5f4d8 [2025-03-08 02:42:48,038 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13d58298f/21863d085eea4d20a80ad4cda5914c4a [2025-03-08 02:42:48,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 02:42:48,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 02:42:48,041 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 02:42:48,041 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 02:42:48,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 02:42:48,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7098f961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48, skipping insertion in model container [2025-03-08 02:42:48,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 02:42:48,311 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/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-03-08 02:42:48,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:42:48,323 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 02:42:48,358 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/floats-cbmc-regression/float-no-simp8.i[41070,41083] [2025-03-08 02:42:48,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 02:42:48,453 INFO L204 MainTranslator]: Completed translation [2025-03-08 02:42:48,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48 WrapperNode [2025-03-08 02:42:48,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 02:42:48,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 02:42:48,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 02:42:48,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 02:42:48,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,500 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-03-08 02:42:48,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 02:42:48,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 02:42:48,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 02:42:48,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 02:42:48,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,508 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,520 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 02:42:48,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,524 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 02:42:48,533 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 02:42:48,533 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 02:42:48,533 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 02:42:48,534 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (1/1) ... [2025-03-08 02:42:48,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 02:42:48,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 02:42:48,560 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 02:42:48,565 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 02:42:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 02:42:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 02:42:48,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 02:42:48,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 02:42:48,644 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 02:42:48,645 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 02:42:48,734 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-03-08 02:42:48,734 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 02:42:48,739 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 02:42:48,740 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 02:42:48,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:48 BoogieIcfgContainer [2025-03-08 02:42:48,740 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 02:42:48,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 02:42:48,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 02:42:48,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 02:42:48,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 02:42:48" (1/3) ... [2025-03-08 02:42:48,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2a7838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:42:48, skipping insertion in model container [2025-03-08 02:42:48,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 02:42:48" (2/3) ... [2025-03-08 02:42:48,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e2a7838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 02:42:48, skipping insertion in model container [2025-03-08 02:42:48,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:48" (3/3) ... [2025-03-08 02:42:48,747 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-03-08 02:42:48,756 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 02:42:48,757 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. [2025-03-08 02:42:48,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 02:42:48,796 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;@72eea132, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 02:42:48,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 02:42:48,798 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 02:42:48,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-08 02:42:48,802 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 02:42:48,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-08 02:42:48,803 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 02:42:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 02:42:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1168735, now seen corresponding path program 1 times [2025-03-08 02:42:48,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 02:42:48,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524128269] [2025-03-08 02:42:48,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 02:42:48,814 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 02:42:48,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 02:42:48,816 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 02:42:48,817 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 02:42:48,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:42:48,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:42:48,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:42:48,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:42:48,878 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 02:42:48,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-08 02:42:48,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-08 02:42:48,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 02:42:48,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 02:42:48,926 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-08 02:42:48,927 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 02:42:48,928 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 02:42:48,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-08 02:42:49,130 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 02:42:49,133 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 02:42:49,143 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 02:42:49,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 02:42:49 BoogieIcfgContainer [2025-03-08 02:42:49,145 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 02:42:49,146 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 02:42:49,147 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 02:42:49,147 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 02:42:49,147 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 02:42:48" (3/4) ... [2025-03-08 02:42:49,149 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 02:42:49,149 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 02:42:49,150 INFO L158 Benchmark]: Toolchain (without parser) took 1109.73ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 27.4MB in the end (delta: 30.9MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2025-03-08 02:42:49,151 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:49,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.74ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 51.7MB in the end (delta: 6.3MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2025-03-08 02:42:49,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.44ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:49,153 INFO L158 Benchmark]: Boogie Preprocessor took 29.84ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 48.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:49,154 INFO L158 Benchmark]: IcfgBuilder took 207.32ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 38.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:49,154 INFO L158 Benchmark]: TraceAbstraction took 403.54ms. Allocated memory is still 83.9MB. Free memory was 38.0MB in the beginning and 27.4MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 02:42:49,155 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 83.9MB. Free memory is still 27.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 02:42:49,156 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 413.74ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 51.7MB in the end (delta: 6.3MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.44ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.84ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 48.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 207.32ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 38.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 403.54ms. Allocated memory is still 83.9MB. Free memory was 38.0MB in the beginning and 27.4MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 83.9MB. Free memory is still 27.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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, 9 edges, 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 [2025-03-08 02:42:49,170 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 Result: UNKNOWN: Overapproximated counterexample