./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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:18,461 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:18,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:23:18,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:18,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:18,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:18,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:18,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:18,568 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:18,568 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:18,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:18,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:18,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:18,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:18,573 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:18,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:18,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:18,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:18,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:23:18,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:18,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:18,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:18,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:18,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:18,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:18,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:18,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:18,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:18,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:18,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:18,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:18,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:18,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:18,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:18,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:18,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:18,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:23:18,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:23:18,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:18,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:18,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:18,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:18,584 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2024-11-18 11:23:18,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:18,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:18,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:18,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:18,886 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:18,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-18 11:23:20,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:20,644 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:20,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-18 11:23:20,662 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9782e50ec/7c62dd4334ac4bd3a0fcde01f2aea509/FLAGebf3fe32b [2024-11-18 11:23:20,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9782e50ec/7c62dd4334ac4bd3a0fcde01f2aea509 [2024-11-18 11:23:20,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:20,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:20,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:20,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:20,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:20,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:20" (1/1) ... [2024-11-18 11:23:20,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43445c5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:20, skipping insertion in model container [2024-11-18 11:23:20,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:20" (1/1) ... [2024-11-18 11:23:20,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:21,174 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] [2024-11-18 11:23:21,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:21,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:23:21,280 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] [2024-11-18 11:23:21,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:21,372 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:23:21,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21 WrapperNode [2024-11-18 11:23:21,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:21,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:21,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:23:21,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:23:21,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,416 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2024-11-18 11:23:21,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:21,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:23:21,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:23:21,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:23:21,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,439 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:23:21,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:23:21,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:23:21,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:23:21,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:23:21,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (1/1) ... [2024-11-18 11:23:21,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:21,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:23:21,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:23:21,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:23:21,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:23:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:23:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:23:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:23:21,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:23:21,665 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:23:21,783 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-18 11:23:21,783 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:23:21,794 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:23:21,794 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:23:21,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:21 BoogieIcfgContainer [2024-11-18 11:23:21,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:23:21,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:23:21,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:23:21,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:23:21,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:20" (1/3) ... [2024-11-18 11:23:21,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67609e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:21, skipping insertion in model container [2024-11-18 11:23:21,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:21" (2/3) ... [2024-11-18 11:23:21,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67609e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:21, skipping insertion in model container [2024-11-18 11:23:21,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:21" (3/3) ... [2024-11-18 11:23:21,804 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2024-11-18 11:23:21,819 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:23:21,819 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:23:21,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:23:21,868 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;@2e066d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:23:21,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:23:21,873 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) [2024-11-18 11:23:21,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-18 11:23:21,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:21,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-18 11:23:21,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:21,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash 28722624, now seen corresponding path program 1 times [2024-11-18 11:23:21,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:23:21,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856180095] [2024-11-18 11:23:21,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:21,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:23:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:22,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:23:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:22,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:23:22,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:23:22,050 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:23:22,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:23:22,057 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-18 11:23:22,071 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:23:22,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:23:22 BoogieIcfgContainer [2024-11-18 11:23:22,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:23:22,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:23:22,077 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:23:22,077 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:23:22,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:21" (3/4) ... [2024-11-18 11:23:22,081 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:23:22,082 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:23:22,082 INFO L158 Benchmark]: Toolchain (without parser) took 1399.82ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 79.1MB in the end (delta: 22.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,083 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 104.9MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:22,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.97ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 109.1MB in the end (delta: -7.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.35ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 106.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,084 INFO L158 Benchmark]: Boogie Preprocessor took 31.16ms. Allocated memory is still 169.9MB. Free memory was 106.4MB in the beginning and 105.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,085 INFO L158 Benchmark]: RCFGBuilder took 343.71ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 93.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,085 INFO L158 Benchmark]: TraceAbstraction took 279.10ms. Allocated memory is still 169.9MB. Free memory was 93.1MB in the beginning and 79.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-18 11:23:22,085 INFO L158 Benchmark]: Witness Printer took 5.18ms. Allocated memory is still 169.9MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 691.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:22,088 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 104.9MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.97ms. Allocated memory is still 169.9MB. Free memory was 101.5MB in the beginning and 109.1MB in the end (delta: -7.6MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.35ms. Allocated memory is still 169.9MB. Free memory was 109.1MB in the beginning and 106.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.16ms. Allocated memory is still 169.9MB. Free memory was 106.4MB in the beginning and 105.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 343.71ms. Allocated memory is still 169.9MB. Free memory was 105.0MB in the beginning and 93.8MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 279.10ms. Allocated memory is still 169.9MB. Free memory was 93.1MB in the beginning and 79.8MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.18ms. Allocated memory is still 169.9MB. Free memory was 79.8MB in the beginning and 79.1MB in the end (delta: 691.5kB). 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 11:23:22,122 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:23:24,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:23:24,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:23:24,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:23:24,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:23:24,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:23:24,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:23:24,440 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:23:24,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:23:24,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:23:24,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:23:24,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:23:24,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:23:24,442 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:23:24,443 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:23:24,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:23:24,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:23:24,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:23:24,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:23:24,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:23:24,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:23:24,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:23:24,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:23:24,446 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:23:24,446 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:23:24,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:23:24,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:23:24,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:23:24,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:23:24,448 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:23:24,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:23:24,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:23:24,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:23:24,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:23:24,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:24,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:23:24,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:23:24,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:23:24,451 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:23:24,451 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:23:24,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:23:24,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:23:24,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:23:24,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:23:24,452 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2024-11-18 11:23:24,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:23:24,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:23:24,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:23:24,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:23:24,839 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:23:24,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-18 11:23:26,461 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:23:26,732 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:23:26,732 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8.i [2024-11-18 11:23:26,770 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c87686f/bdcc1df3f81045339ffe3be8bb0717f9/FLAGb6c92690a [2024-11-18 11:23:27,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77c87686f/bdcc1df3f81045339ffe3be8bb0717f9 [2024-11-18 11:23:27,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:23:27,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:23:27,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:27,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:23:27,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:23:27,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca373c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27, skipping insertion in model container [2024-11-18 11:23:27,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,099 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:23:27,600 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] [2024-11-18 11:23:27,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:27,618 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:23:27,651 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] [2024-11-18 11:23:27,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:23:27,778 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:23:27,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27 WrapperNode [2024-11-18 11:23:27,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:23:27,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:27,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:23:27,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:23:27,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,840 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-11-18 11:23:27,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:23:27,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:23:27,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:23:27,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:23:27,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,866 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 11:23:27,867 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,867 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:23:27,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:23:27,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:23:27,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:23:27,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (1/1) ... [2024-11-18 11:23:27,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:23:27,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:23:27,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 11:23:27,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 11:23:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:23:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:23:27,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:23:27,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:23:28,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:23:28,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:23:28,178 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-18 11:23:28,178 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:23:28,191 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:23:28,191 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 11:23:28,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:28 BoogieIcfgContainer [2024-11-18 11:23:28,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:23:28,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:23:28,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:23:28,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:23:28,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:27" (1/3) ... [2024-11-18 11:23:28,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51fa13b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:28, skipping insertion in model container [2024-11-18 11:23:28,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:27" (2/3) ... [2024-11-18 11:23:28,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51fa13b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:28, skipping insertion in model container [2024-11-18 11:23:28,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:28" (3/3) ... [2024-11-18 11:23:28,202 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2024-11-18 11:23:28,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:23:28,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:23:28,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:23:28,285 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;@57cdf9f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:23:28,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:23:28,293 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) [2024-11-18 11:23:28,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-18 11:23:28,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:23:28,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-18 11:23:28,299 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:23:28,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:23:28,305 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-11-18 11:23:28,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:23:28,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541204814] [2024-11-18 11:23:28,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:23:28,320 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 [2024-11-18 11:23:28,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:23:28,323 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) [2024-11-18 11:23:28,324 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 [2024-11-18 11:23:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:28,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:23:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:23:28,450 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-18 11:23:28,451 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:23:28,452 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:23:28,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-18 11:23:28,658 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 [2024-11-18 11:23:28,663 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-18 11:23:28,680 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:23:28,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:23:28 BoogieIcfgContainer [2024-11-18 11:23:28,685 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:23:28,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:23:28,690 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:23:28,691 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:23:28,691 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:28" (3/4) ... [2024-11-18 11:23:28,694 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:23:28,696 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:23:28,697 INFO L158 Benchmark]: Toolchain (without parser) took 1665.68ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 36.6MB in the beginning and 48.8MB in the end (delta: -12.2MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,697 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 41.9MB. Free memory is still 18.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:23:28,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 746.62ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.7MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.70ms. Allocated memory is still 71.3MB. Free memory was 34.8MB in the beginning and 32.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,699 INFO L158 Benchmark]: Boogie Preprocessor took 39.56ms. Allocated memory is still 71.3MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,700 INFO L158 Benchmark]: RCFGBuilder took 310.60ms. Allocated memory is still 71.3MB. Free memory was 30.2MB in the beginning and 42.6MB in the end (delta: -12.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,700 INFO L158 Benchmark]: TraceAbstraction took 491.07ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 29.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,702 INFO L158 Benchmark]: Witness Printer took 10.15ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 48.8MB in the end (delta: -19.7MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-18 11:23:28,707 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 41.9MB. Free memory is still 18.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 746.62ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 36.5MB in the beginning and 34.8MB in the end (delta: 1.7MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.70ms. Allocated memory is still 71.3MB. Free memory was 34.8MB in the beginning and 32.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.56ms. Allocated memory is still 71.3MB. Free memory was 32.1MB in the beginning and 30.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.60ms. Allocated memory is still 71.3MB. Free memory was 30.2MB in the beginning and 42.6MB in the end (delta: -12.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * TraceAbstraction took 491.07ms. Allocated memory is still 71.3MB. Free memory was 41.9MB in the beginning and 29.1MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 10.15ms. Allocated memory is still 71.3MB. Free memory was 29.1MB in the beginning and 48.8MB in the end (delta: -19.7MB). Peak memory consumption was 2.9MB. 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-18 11:23:28,746 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