./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i --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.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:08:08,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:08:08,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-30 10:08:08,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:08:08,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:08:08,688 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:08:08,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:08:08,690 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:08:08,690 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:08:08,690 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:08:08,691 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:08:08,691 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:08:08,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:08:08,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:08:08,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:08:08,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:08:08,693 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:08:08,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:08,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:08,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:08:08,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:08:08,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:08:08,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:08:08,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:08:08,695 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-04-30 10:08:08,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:08:08,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:08:08,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:08:08,912 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:08:08,912 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:08:08,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i [2025-04-30 10:08:10,158 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f15768910/8c93a8d8aa8d4b7684305dc2a7b95b75/FLAGed197ba82 [2025-04-30 10:08:10,420 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:08:10,420 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i [2025-04-30 10:08:10,428 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f15768910/8c93a8d8aa8d4b7684305dc2a7b95b75/FLAGed197ba82 [2025-04-30 10:08:11,159 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f15768910/8c93a8d8aa8d4b7684305dc2a7b95b75 [2025-04-30 10:08:11,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:08:11,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:08:11,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:08:11,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:08:11,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:08:11,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244cc2c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11, skipping insertion in model container [2025-04-30 10:08:11,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:08:11,499 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.i[41070,41083] [2025-04-30 10:08:11,505 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:08:11,511 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:08:11,553 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.i[41070,41083] [2025-04-30 10:08:11,553 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:08:11,614 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:08:11,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11 WrapperNode [2025-04-30 10:08:11,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:08:11,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:08:11,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:08:11,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:08:11,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,641 INFO L138 Inliner]: procedures = 446, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2025-04-30 10:08:11,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:08:11,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:08:11,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:08:11,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:08:11,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,663 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-30 10:08:11,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:08:11,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:08:11,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:08:11,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:08:11,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (1/1) ... [2025-04-30 10:08:11,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:11,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:08:11,692 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) [2025-04-30 10:08:11,694 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 [2025-04-30 10:08:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:08:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:08:11,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:08:11,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:08:11,768 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:08:11,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:08:11,828 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-04-30 10:08:11,829 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:08:11,834 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:08:11,834 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:08:11,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:11 BoogieIcfgContainer [2025-04-30 10:08:11,835 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:08:11,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:08:11,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:08:11,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:08:11,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:08:11" (1/3) ... [2025-04-30 10:08:11,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3643e044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:08:11, skipping insertion in model container [2025-04-30 10:08:11,843 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:11" (2/3) ... [2025-04-30 10:08:11,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3643e044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:08:11, skipping insertion in model container [2025-04-30 10:08:11,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:11" (3/3) ... [2025-04-30 10:08:11,845 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-04-30 10:08:11,856 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:08:11,857 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 17 locations, 22 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-30 10:08:11,892 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:08:11,902 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;@762c467f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:08:11,902 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:08:11,905 INFO L278 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:08:11,908 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-04-30 10:08:11,908 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:08:11,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:08:11,909 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:08:11,913 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:08:11,914 INFO L85 PathProgramCache]: Analyzing trace with hash 28722624, now seen corresponding path program 1 times [2025-04-30 10:08:11,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:08:11,918 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028051868] [2025-04-30 10:08:11,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:08:11,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:08:11,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:08:11,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:08:11,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:08:11,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:08:11,970 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:08:11,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:08:11,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:08:11,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:08:11,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:08:11,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:08:11,991 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:08:11,991 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:08:11,993 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:08:11,997 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-30 10:08:12,006 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:08:12,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:08:12 BoogieIcfgContainer [2025-04-30 10:08:12,011 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:08:12,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:08:12,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:08:12,012 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:08:12,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:11" (3/4) ... [2025-04-30 10:08:12,014 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:08:12,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:08:12,015 INFO L158 Benchmark]: Toolchain (without parser) took 853.04ms. Allocated memory is still 167.8MB. Free memory was 132.0MB in the beginning and 58.1MB in the end (delta: 73.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-04-30 10:08:12,016 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:12,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.02ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 85.5MB in the end (delta: 46.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-04-30 10:08:12,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.92ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:12,017 INFO L158 Benchmark]: Boogie Preprocessor took 27.19ms. Allocated memory is still 167.8MB. Free memory was 83.2MB in the beginning and 81.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:12,017 INFO L158 Benchmark]: RCFGBuilder took 165.57ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 70.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:08:12,017 INFO L158 Benchmark]: TraceAbstraction took 173.80ms. Allocated memory is still 167.8MB. Free memory was 70.2MB in the beginning and 58.5MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:08:12,017 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 167.8MB. Free memory was 58.5MB in the beginning and 58.1MB in the end (delta: 321.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:12,019 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.02ms. Allocated memory is still 167.8MB. Free memory was 131.7MB in the beginning and 85.5MB in the end (delta: 46.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.92ms. Allocated memory is still 167.8MB. Free memory was 85.5MB in the beginning and 83.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.19ms. Allocated memory is still 167.8MB. Free memory was 83.2MB in the beginning and 81.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 165.57ms. Allocated memory is still 167.8MB. Free memory was 81.6MB in the beginning and 70.8MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 173.80ms. Allocated memory is still 167.8MB. Free memory was 70.2MB in the beginning and 58.5MB in the end (delta: 11.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 167.8MB. Free memory was 58.5MB in the beginning and 58.1MB in the end (delta: 321.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 969]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 969, overapproximation of to_real at line 965, overapproximation of someBinaryArithmeticFLOAToperation at line 967, overapproximation of someUnaryFLOAToperation at line 963. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; [L969] EXPR result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target)) [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 22 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-04-30 10:08:12,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:08:13,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:08:13,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-04-30 10:08:13,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:08:13,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:08:13,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:08:13,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:08:13,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:08:13,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:08:13,970 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:08:13,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:08:13,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:08:13,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:08:13,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:08:13,971 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:08:13,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:08:13,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:08:13,973 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:08:13,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:13,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:13,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:08:13,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:08:13,975 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 786837fb3df1c16cf4a6cad99a185e6a7f28758e9c247baf272fc714322dd2ae [2025-04-30 10:08:14,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:08:14,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:08:14,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:08:14,298 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:08:14,298 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:08:14,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i [2025-04-30 10:08:15,584 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93913f15/4c0adfb93e2e4509953cc91ad61e5a4d/FLAGcf927401f [2025-04-30 10:08:15,771 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:08:15,773 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp8.i [2025-04-30 10:08:15,785 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93913f15/4c0adfb93e2e4509953cc91ad61e5a4d/FLAGcf927401f [2025-04-30 10:08:17,686 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e93913f15/4c0adfb93e2e4509953cc91ad61e5a4d [2025-04-30 10:08:17,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:08:17,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:08:17,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:08:17,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:08:17,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:08:17,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:08:17" (1/1) ... [2025-04-30 10:08:17,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a15ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:17, skipping insertion in model container [2025-04-30 10:08:17,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:08:17" (1/1) ... [2025-04-30 10:08:17,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:08:17,966 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.i[41070,41083] [2025-04-30 10:08:17,970 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:08:17,979 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:08:18,035 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.i[41070,41083] [2025-04-30 10:08:18,035 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:08:18,126 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:08:18,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18 WrapperNode [2025-04-30 10:08:18,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:08:18,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:08:18,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:08:18,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:08:18,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,174 INFO L138 Inliner]: procedures = 447, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2025-04-30 10:08:18,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:08:18,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:08:18,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:08:18,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:08:18,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,189 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-30 10:08:18,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,196 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,200 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:08:18,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:08:18,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:08:18,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:08:18,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (1/1) ... [2025-04-30 10:08:18,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:08:18,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:08:18,232 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) [2025-04-30 10:08:18,235 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 [2025-04-30 10:08:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-04-30 10:08:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:08:18,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:08:18,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:08:18,325 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:08:18,326 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:08:18,389 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2025-04-30 10:08:18,390 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:08:18,395 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:08:18,395 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-30 10:08:18,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:18 BoogieIcfgContainer [2025-04-30 10:08:18,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:08:18,397 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:08:18,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:08:18,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:08:18,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:08:17" (1/3) ... [2025-04-30 10:08:18,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:08:18, skipping insertion in model container [2025-04-30 10:08:18,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:08:18" (2/3) ... [2025-04-30 10:08:18,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6602448a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:08:18, skipping insertion in model container [2025-04-30 10:08:18,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:18" (3/3) ... [2025-04-30 10:08:18,405 INFO L128 eAbstractionObserver]: Analyzing ICFG float-no-simp8.i [2025-04-30 10:08:18,414 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:08:18,415 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float-no-simp8.i that has 1 procedures, 9 locations, 9 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-30 10:08:18,443 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:08:18,449 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;@7c973efe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:08:18,449 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-04-30 10:08:18,451 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) [2025-04-30 10:08:18,454 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-04-30 10:08:18,454 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:08:18,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-04-30 10:08:18,454 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-04-30 10:08:18,457 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:08:18,457 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2025-04-30 10:08:18,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-04-30 10:08:18,463 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999948179] [2025-04-30 10:08:18,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:08:18,464 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 [2025-04-30 10:08:18,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-04-30 10:08:18,466 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) [2025-04-30 10:08:18,467 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 [2025-04-30 10:08:18,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:08:18,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:08:18,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:08:18,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:08:18,533 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:08:18,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-30 10:08:18,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-30 10:08:18,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:08:18,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:08:18,573 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-04-30 10:08:18,575 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:08:18,575 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-04-30 10:08:18,582 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 [2025-04-30 10:08:18,777 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 [2025-04-30 10:08:18,780 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-04-30 10:08:18,797 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:08:18,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:08:18 BoogieIcfgContainer [2025-04-30 10:08:18,799 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:08:18,800 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:08:18,800 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:08:18,800 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:08:18,800 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:08:18" (3/4) ... [2025-04-30 10:08:18,802 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-04-30 10:08:18,802 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:08:18,803 INFO L158 Benchmark]: Toolchain (without parser) took 1114.35ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 52.9MB in the end (delta: 5.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2025-04-30 10:08:18,803 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:18,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.54ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 47.9MB in the end (delta: 10.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2025-04-30 10:08:18,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.89ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 45.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:18,804 INFO L158 Benchmark]: Boogie Preprocessor took 31.92ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 43.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:18,804 INFO L158 Benchmark]: RCFGBuilder took 188.55ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 34.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:08:18,804 INFO L158 Benchmark]: TraceAbstraction took 402.58ms. Allocated memory is still 83.9MB. Free memory was 33.9MB in the beginning and 52.9MB in the end (delta: -19.1MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2025-04-30 10:08:18,804 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:08:18,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.54ms. Allocated memory is still 83.9MB. Free memory was 58.2MB in the beginning and 47.9MB in the end (delta: 10.3MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.89ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 45.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.92ms. Allocated memory is still 83.9MB. Free memory was 45.1MB in the beginning and 43.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 188.55ms. Allocated memory is still 83.9MB. Free memory was 43.5MB in the beginning and 34.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 402.58ms. Allocated memory is still 83.9MB. Free memory was 33.9MB in the beginning and 52.9MB in the end (delta: -19.1MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 5.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 969]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of __signbitl at line 969. Possible FailurePath: [L963] float f = -0x1p-129f; [L964] float g = 0x1p-129f; [L965] float target = 0x0; [L967] float result = f + g; VAL [result=0.0, target=0.0] [L969] COND TRUE !(result == target && (sizeof (result) == sizeof (float) ? __signbitf (result) : sizeof (result) == sizeof (double) ? __signbit (result) : __signbitl (result)) == (sizeof (target) == sizeof (float) ? __signbitf (target) : sizeof (target) == sizeof (double) ? __signbit (target) : __signbitl (target))) [L969] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 9 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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 [2025-04-30 10:08:18,817 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