./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da043454 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 ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36bf2d0da08db23cc4ec12beeb1c05460f1b11a3e2ab9e90017e235a3f6494ff --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:50:29,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:50:29,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-29 10:50:29,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:50:29,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:50:29,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:50:29,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:50:29,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:50:29,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:50:29,901 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:50:29,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:50:29,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:50:29,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:50:29,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:50:29,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:50:29,903 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:50:29,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:50:29,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:29,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:50:29,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:50:29,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:50:29,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:50:29,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:29,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:50:29,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:50:29,905 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 -> 36bf2d0da08db23cc4ec12beeb1c05460f1b11a3e2ab9e90017e235a3f6494ff [2025-04-29 10:50:30,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:50:30,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:50:30,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:50:30,156 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:50:30,157 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:50:30,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c [2025-04-29 10:50:31,483 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9713d284/2db272de10b64cd3b0ac667e0c071d11/FLAGa444c8ee3 [2025-04-29 10:50:31,675 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:50:31,676 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c [2025-04-29 10:50:31,677 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:50:31,677 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:50:31,687 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9713d284/2db272de10b64cd3b0ac667e0c071d11/FLAGa444c8ee3 [2025-04-29 10:50:33,583 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9713d284/2db272de10b64cd3b0ac667e0c071d11 [2025-04-29 10:50:33,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:50:33,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:50:33,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:50:33,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:50:33,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:50:33,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391be9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33, skipping insertion in model container [2025-04-29 10:50:33,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,603 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:50:33,737 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c[294,307] [2025-04-29 10:50:33,741 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:50:33,744 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:50:33,764 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c[294,307] [2025-04-29 10:50:33,765 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:50:33,772 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:50:33,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33 WrapperNode [2025-04-29 10:50:33,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:50:33,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:50:33,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:50:33,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:50:33,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,793 INFO L138 Inliner]: procedures = 5, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-04-29 10:50:33,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:50:33,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:50:33,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:50:33,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:50:33,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,806 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:50:33,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,808 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:50:33,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:50:33,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:50:33,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:50:33,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (1/1) ... [2025-04-29 10:50:33,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:33,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:50:33,843 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) [2025-04-29 10:50:33,845 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 [2025-04-29 10:50:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:50:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:50:33,894 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:50:33,895 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:50:33,961 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-04-29 10:50:33,961 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:50:33,966 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:50:33,967 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 10:50:33,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:33 BoogieIcfgContainer [2025-04-29 10:50:33,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:50:33,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:50:33,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:50:33,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:50:33,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:50:33" (1/3) ... [2025-04-29 10:50:33,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bd63cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:50:33, skipping insertion in model container [2025-04-29 10:50:33,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:33" (2/3) ... [2025-04-29 10:50:33,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bd63cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:50:33, skipping insertion in model container [2025-04-29 10:50:33,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:33" (3/3) ... [2025-04-29 10:50:33,973 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.c [2025-04-29 10:50:33,983 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:50:33,985 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.c that has 1 procedures, 10 locations, 11 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-29 10:50:34,028 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:50:34,038 INFO L340 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;@7c1586c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:50:34,038 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:50:34,041 INFO L278 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 10:50:34,044 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-04-29 10:50:34,044 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:50:34,044 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-04-29 10:50:34,045 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:50:34,048 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:50:34,050 INFO L85 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2025-04-29 10:50:34,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 10:50:34,056 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028706036] [2025-04-29 10:50:34,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:50:34,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 10:50:34,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-29 10:50:34,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-29 10:50:34,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:50:34,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:50:34,117 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:50:34,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-29 10:50:34,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-29 10:50:34,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:50:34,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:50:34,134 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-29 10:50:34,135 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:50:34,135 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:50:34,137 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 10:50:34,139 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-29 10:50:34,148 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:50:34,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:50:34 BoogieIcfgContainer [2025-04-29 10:50:34,151 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:50:34,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:50:34,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:50:34,152 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:50:34,152 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:33" (3/4) ... [2025-04-29 10:50:34,153 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:50:34,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:50:34,155 INFO L158 Benchmark]: Toolchain (without parser) took 569.14ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 75.8MB in the end (delta: 38.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-29 10:50:34,155 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:34,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.22ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 100.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:50:34,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.71ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:50:34,156 INFO L158 Benchmark]: Boogie Preprocessor took 21.84ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:34,156 INFO L158 Benchmark]: RCFGBuilder took 149.42ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 88.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:50:34,156 INFO L158 Benchmark]: TraceAbstraction took 182.74ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 76.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:50:34,156 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 142.6MB. Free memory was 76.2MB in the beginning and 75.8MB in the end (delta: 448.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:34,157 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.22ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 100.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.71ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.84ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 97.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 149.42ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 88.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 182.74ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 76.2MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 142.6MB. Free memory was 76.2MB in the beginning and 75.8MB in the end (delta: 448.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: 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 13, overapproximation of to_real at line 9, overapproximation of someBinaryArithmeticFLOAToperation at line 11, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1p-129f; [L8] float g = 0x1p-129f; [L9] float target = 0x0; [L11] float result = f + g; [L13] EXPR result == target && signbit(result) == signbit(target) [L13] EXPR result == target && signbit(result) == signbit(target) [L13] COND TRUE !(result == target && signbit(result) == signbit(target)) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 11 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=10occurred 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 [2025-04-29 10:50:34,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36bf2d0da08db23cc4ec12beeb1c05460f1b11a3e2ab9e90017e235a3f6494ff --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 10:50:35,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 10:50:36,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-29 10:50:36,036 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 10:50:36,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 10:50:36,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 10:50:36,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 10:50:36,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 10:50:36,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 10:50:36,061 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 10:50:36,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 10:50:36,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 10:50:36,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 10:50:36,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 10:50:36,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 10:50:36,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 10:50:36,063 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 10:50:36,063 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:36,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 10:50:36,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:36,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 10:50:36,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 10:50:36,065 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 -> 36bf2d0da08db23cc4ec12beeb1c05460f1b11a3e2ab9e90017e235a3f6494ff [2025-04-29 10:50:36,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 10:50:36,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 10:50:36,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 10:50:36,283 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 10:50:36,283 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 10:50:36,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c [2025-04-29 10:50:37,548 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621539f65/5a653af666fd4b64b2e081dc847bee48/FLAG6bae4ea46 [2025-04-29 10:50:37,723 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 10:50:37,724 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c [2025-04-29 10:50:37,725 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:50:37,725 WARN L117 ultiparseSymbolTable]: System include math.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 10:50:37,728 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621539f65/5a653af666fd4b64b2e081dc847bee48/FLAG6bae4ea46 [2025-04-29 10:50:38,599 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/621539f65/5a653af666fd4b64b2e081dc847bee48 [2025-04-29 10:50:38,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 10:50:38,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 10:50:38,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 10:50:38,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 10:50:38,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 10:50:38,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41096bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38, skipping insertion in model container [2025-04-29 10:50:38,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 10:50:38,737 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c[294,307] [2025-04-29 10:50:38,740 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:50:38,745 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 10:50:38,762 WARN L117 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.c[294,307] [2025-04-29 10:50:38,767 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 10:50:38,776 INFO L204 MainTranslator]: Completed translation [2025-04-29 10:50:38,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38 WrapperNode [2025-04-29 10:50:38,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 10:50:38,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 10:50:38,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 10:50:38,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 10:50:38,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,798 INFO L138 Inliner]: procedures = 6, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2025-04-29 10:50:38,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 10:50:38,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 10:50:38,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 10:50:38,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 10:50:38,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,811 INFO L175 MemorySlicer]: No memory access in input program. [2025-04-29 10:50:38,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,817 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,818 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 10:50:38,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 10:50:38,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 10:50:38,827 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 10:50:38,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (1/1) ... [2025-04-29 10:50:38,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 10:50:38,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 10:50:38,853 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) [2025-04-29 10:50:38,858 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 [2025-04-29 10:50:38,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 10:50:38,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 10:50:38,917 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 10:50:38,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 10:50:38,996 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-04-29 10:50:38,996 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 10:50:39,001 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 10:50:39,001 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 10:50:39,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:39 BoogieIcfgContainer [2025-04-29 10:50:39,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 10:50:39,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 10:50:39,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 10:50:39,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 10:50:39,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 10:50:38" (1/3) ... [2025-04-29 10:50:39,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5eb425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:50:39, skipping insertion in model container [2025-04-29 10:50:39,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 10:50:38" (2/3) ... [2025-04-29 10:50:39,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5eb425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 10:50:39, skipping insertion in model container [2025-04-29 10:50:39,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:39" (3/3) ... [2025-04-29 10:50:39,008 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.c [2025-04-29 10:50:39,017 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 10:50:39,019 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.c that has 1 procedures, 9 locations, 9 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-29 10:50:39,068 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 10:50:39,077 INFO L340 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;@792bb119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 10:50:39,078 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-29 10:50:39,080 INFO L278 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) [2025-04-29 10:50:39,083 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-04-29 10:50:39,083 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 10:50:39,083 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-04-29 10:50:39,084 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-29 10:50:39,086 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 10:50:39,087 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2025-04-29 10:50:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-29 10:50:39,093 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463885867] [2025-04-29 10:50:39,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 10:50:39,093 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 [2025-04-29 10:50:39,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-29 10:50:39,095 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) [2025-04-29 10:50:39,097 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 [2025-04-29 10:50:39,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-29 10:50:39,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-29 10:50:39,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:50:39,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:50:39,144 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-29 10:50:39,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-29 10:50:39,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-29 10:50:39,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 10:50:39,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-29 10:50:39,179 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-29 10:50:39,180 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-29 10:50:39,181 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-29 10:50:39,185 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 [2025-04-29 10:50:39,382 WARN L466 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 [2025-04-29 10:50:39,385 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-29 10:50:39,400 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 10:50:39,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 10:50:39 BoogieIcfgContainer [2025-04-29 10:50:39,402 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 10:50:39,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 10:50:39,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 10:50:39,403 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 10:50:39,403 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 10:50:39" (3/4) ... [2025-04-29 10:50:39,405 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-29 10:50:39,405 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 10:50:39,406 INFO L158 Benchmark]: Toolchain (without parser) took 803.96ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 51.3MB in the end (delta: 8.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2025-04-29 10:50:39,406 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:39,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.56ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 45.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 10:50:39,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.58ms. Allocated memory is still 83.9MB. Free memory was 45.2MB in the beginning and 43.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:39,407 INFO L158 Benchmark]: Boogie Preprocessor took 27.61ms. Allocated memory is still 83.9MB. Free memory was 43.7MB in the beginning and 42.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:39,408 INFO L158 Benchmark]: RCFGBuilder took 175.05ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 33.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 10:50:39,409 INFO L158 Benchmark]: TraceAbstraction took 398.83ms. Allocated memory is still 83.9MB. Free memory was 33.0MB in the beginning and 51.7MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:39,409 INFO L158 Benchmark]: Witness Printer took 2.55ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 51.3MB in the end (delta: 407.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 10:50:39,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 62.5MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.56ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 45.2MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.58ms. Allocated memory is still 83.9MB. Free memory was 45.2MB in the beginning and 43.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.61ms. Allocated memory is still 83.9MB. Free memory was 43.7MB in the beginning and 42.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 175.05ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 33.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 398.83ms. Allocated memory is still 83.9MB. Free memory was 33.0MB in the beginning and 51.7MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.55ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 51.3MB in the end (delta: 407.7kB). 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: 13]: 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 signbit at line 13. Possible FailurePath: [L7] float f = -0x1p-129f; [L8] float g = 0x1p-129f; [L9] float target = 0x0; [L11] float result = f + g; VAL [result=0.0, target=0.0] [L13] COND TRUE !(result == target && signbit(result) == signbit(target)) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 9 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-29 10:50:39,423 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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample