./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float5.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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 15:51:37,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 15:51:37,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 15:51:37,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 15:51:37,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 15:51:37,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 15:51:37,696 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 15:51:37,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 15:51:37,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 15:51:37,697 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 15:51:37,697 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 15:51:37,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 15:51:37,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 15:51:37,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 15:51:37,699 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:51:37,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 15:51:37,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 15:51:37,699 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 -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2025-03-16 15:51:37,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 15:51:37,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 15:51:37,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 15:51:37,930 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 15:51:37,930 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 15:51:37,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float5.c [2025-03-16 15:51:39,043 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77fe07fe/39be495f2d3e4aa4b20744ebcf7c758b/FLAG58430be69 [2025-03-16 15:51:39,236 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 15:51:39,237 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c [2025-03-16 15:51:39,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77fe07fe/39be495f2d3e4aa4b20744ebcf7c758b/FLAG58430be69 [2025-03-16 15:51:39,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a77fe07fe/39be495f2d3e4aa4b20744ebcf7c758b [2025-03-16 15:51:39,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 15:51:39,604 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 15:51:39,605 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 15:51:39,605 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 15:51:39,608 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 15:51:39,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce300f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39, skipping insertion in model container [2025-03-16 15:51:39,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 15:51:39,712 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2025-03-16 15:51:39,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:51:39,723 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 15:51:39,732 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2025-03-16 15:51:39,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:51:39,741 INFO L204 MainTranslator]: Completed translation [2025-03-16 15:51:39,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39 WrapperNode [2025-03-16 15:51:39,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 15:51:39,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 15:51:39,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 15:51:39,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 15:51:39,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,763 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-03-16 15:51:39,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 15:51:39,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 15:51:39,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 15:51:39,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 15:51:39,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,778 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 15:51:39,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,781 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 15:51:39,786 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 15:51:39,786 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 15:51:39,786 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 15:51:39,787 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (1/1) ... [2025-03-16 15:51:39,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:51:39,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 15:51:39,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 15:51:39,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 15:51:39,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 15:51:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 15:51:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 15:51:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 15:51:39,880 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 15:51:39,881 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 15:51:39,943 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2025-03-16 15:51:39,943 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 15:51:39,948 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 15:51:39,948 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 15:51:39,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:39 BoogieIcfgContainer [2025-03-16 15:51:39,949 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 15:51:39,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 15:51:39,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 15:51:39,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 15:51:39,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:51:39" (1/3) ... [2025-03-16 15:51:39,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1704d46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:51:39, skipping insertion in model container [2025-03-16 15:51:39,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:39" (2/3) ... [2025-03-16 15:51:39,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1704d46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:51:39, skipping insertion in model container [2025-03-16 15:51:39,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:39" (3/3) ... [2025-03-16 15:51:39,956 INFO L128 eAbstractionObserver]: Analyzing ICFG float5.c [2025-03-16 15:51:39,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 15:51:39,966 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float5.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 15:51:39,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 15:51:40,011 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f3d02bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 15:51:40,013 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 15:51:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 15:51:40,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:51:40,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 15:51:40,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:51:40,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:51:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash 36200965, now seen corresponding path program 1 times [2025-03-16 15:51:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 15:51:40,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026925535] [2025-03-16 15:51:40,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:51:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 15:51:40,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 15:51:40,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 15:51:40,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:51:40,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:51:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 15:51:40,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 15:51:40,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026925535] [2025-03-16 15:51:40,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026925535] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 15:51:40,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 15:51:40,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 15:51:40,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194820837] [2025-03-16 15:51:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 15:51:40,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 15:51:40,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 15:51:40,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 15:51:40,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:51:40,148 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 15:51:40,154 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2025-03-16 15:51:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 15:51:40,156 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2025-03-16 15:51:40,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 15:51:40,160 INFO L225 Difference]: With dead ends: 16 [2025-03-16 15:51:40,161 INFO L226 Difference]: Without dead ends: 6 [2025-03-16 15:51:40,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:51:40,165 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 15:51:40,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 15:51:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2025-03-16 15:51:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2025-03-16 15:51:40,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2025-03-16 15:51:40,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2025-03-16 15:51:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 15:51:40,188 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2025-03-16 15:51:40,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2025-03-16 15:51:40,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 15:51:40,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:51:40,189 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 15:51:40,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 15:51:40,190 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:51:40,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:51:40,190 INFO L85 PathProgramCache]: Analyzing trace with hash 36230756, now seen corresponding path program 1 times [2025-03-16 15:51:40,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 15:51:40,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004370911] [2025-03-16 15:51:40,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:51:40,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 15:51:40,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 15:51:40,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 15:51:40,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:51:40,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 15:51:40,202 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 15:51:40,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 15:51:40,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 15:51:40,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:51:40,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 15:51:40,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 15:51:40,222 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 15:51:40,223 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 15:51:40,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 15:51:40,227 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-16 15:51:40,236 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 15:51:40,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 03:51:40 BoogieIcfgContainer [2025-03-16 15:51:40,239 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 15:51:40,240 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 15:51:40,240 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 15:51:40,241 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 15:51:40,241 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:39" (3/4) ... [2025-03-16 15:51:40,243 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 15:51:40,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 15:51:40,244 INFO L158 Benchmark]: Toolchain (without parser) took 640.08ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 84.3MB in the end (delta: 40.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-16 15:51:40,244 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:51:40,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 137.85ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 114.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:51:40,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.12ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 113.3MB in the end (delta: 745.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:51:40,246 INFO L158 Benchmark]: Boogie Preprocessor took 21.69ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 112.6MB in the end (delta: 745.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:51:40,246 INFO L158 Benchmark]: IcfgBuilder took 162.55ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 102.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:51:40,246 INFO L158 Benchmark]: TraceAbstraction took 289.54ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 84.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 15:51:40,246 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 167.8MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:51:40,247 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 201.3MB. Free memory is still 117.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 137.85ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 114.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.12ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 113.3MB in the end (delta: 745.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.69ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 112.6MB in the end (delta: 745.1kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 162.55ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 102.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 289.54ms. Allocated memory is still 167.8MB. Free memory was 101.8MB in the beginning and 84.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 167.8MB. Free memory is still 84.3MB. 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: 14]: 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 14, overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L10] COND FALSE !(!(a==1 || a==0.5 || a==2 || a==3 || a==0.1)) [L11] b=a [L12] a/=2 [L13] a*=2 [L14] COND TRUE !(a==b) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 10 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 15:51:40,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float5.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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 15:51:42,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 15:51:42,117 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 15:51:42,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 15:51:42,123 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 15:51:42,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 15:51:42,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 15:51:42,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 15:51:42,137 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 15:51:42,138 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 15:51:42,138 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 15:51:42,138 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 15:51:42,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 15:51:42,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 15:51:42,138 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 15:51:42,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 15:51:42,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 15:51:42,139 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 15:51:42,140 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 15:51:42,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 15:51:42,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 15:51:42,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 15:51:42,141 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 15:51:42,141 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:51:42,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 15:51:42,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 15:51:42,142 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 -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2025-03-16 15:51:42,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 15:51:42,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 15:51:42,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 15:51:42,380 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 15:51:42,380 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 15:51:42,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float5.c [2025-03-16 15:51:43,606 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d667726/f869278ddd374007a1e3433866d0997b/FLAG9de9cf53c [2025-03-16 15:51:43,776 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 15:51:43,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c [2025-03-16 15:51:43,783 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d667726/f869278ddd374007a1e3433866d0997b/FLAG9de9cf53c [2025-03-16 15:51:44,154 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82d667726/f869278ddd374007a1e3433866d0997b [2025-03-16 15:51:44,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 15:51:44,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 15:51:44,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 15:51:44,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 15:51:44,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 15:51:44,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,163 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27439fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44, skipping insertion in model container [2025-03-16 15:51:44,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 15:51:44,285 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2025-03-16 15:51:44,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:51:44,300 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 15:51:44,310 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2025-03-16 15:51:44,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 15:51:44,325 INFO L204 MainTranslator]: Completed translation [2025-03-16 15:51:44,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44 WrapperNode [2025-03-16 15:51:44,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 15:51:44,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 15:51:44,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 15:51:44,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 15:51:44,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,348 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2025-03-16 15:51:44,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 15:51:44,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 15:51:44,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 15:51:44,350 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 15:51:44,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,368 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-16 15:51:44,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,373 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 15:51:44,380 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 15:51:44,380 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 15:51:44,380 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 15:51:44,381 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (1/1) ... [2025-03-16 15:51:44,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 15:51:44,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 15:51:44,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 15:51:44,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 15:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 15:51:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 15:51:44,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 15:51:44,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 15:51:44,462 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 15:51:44,464 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 15:51:44,870 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-03-16 15:51:44,870 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 15:51:44,879 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 15:51:44,879 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 15:51:44,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:44 BoogieIcfgContainer [2025-03-16 15:51:44,879 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 15:51:44,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 15:51:44,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 15:51:44,887 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 15:51:44,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 03:51:44" (1/3) ... [2025-03-16 15:51:44,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fc54f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:51:44, skipping insertion in model container [2025-03-16 15:51:44,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 03:51:44" (2/3) ... [2025-03-16 15:51:44,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67fc54f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 03:51:44, skipping insertion in model container [2025-03-16 15:51:44,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:44" (3/3) ... [2025-03-16 15:51:44,891 INFO L128 eAbstractionObserver]: Analyzing ICFG float5.c [2025-03-16 15:51:44,901 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 15:51:44,902 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float5.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-16 15:51:44,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 15:51:44,952 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33df1462, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 15:51:44,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 15:51:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 15:51:44,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:51:44,960 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 15:51:44,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:51:44,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:51:44,965 INFO L85 PathProgramCache]: Analyzing trace with hash 36200965, now seen corresponding path program 1 times [2025-03-16 15:51:44,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 15:51:44,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627193373] [2025-03-16 15:51:44,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:51:44,972 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:51:44,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 15:51:44,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 15:51:44,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-16 15:51:45,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 15:51:45,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 15:51:45,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:51:45,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:51:45,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 15:51:45,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 15:51:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 15:51:45,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 15:51:45,057 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 15:51:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627193373] [2025-03-16 15:51:45,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627193373] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 15:51:45,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 15:51:45,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 15:51:45,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081208912] [2025-03-16 15:51:45,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 15:51:45,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 15:51:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 15:51:45,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 15:51:45,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:51:45,076 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 15:51:45,082 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2025-03-16 15:51:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 15:51:45,083 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2025-03-16 15:51:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 15:51:45,086 INFO L225 Difference]: With dead ends: 16 [2025-03-16 15:51:45,086 INFO L226 Difference]: Without dead ends: 6 [2025-03-16 15:51:45,088 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 15:51:45,091 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 15:51:45,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 15:51:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2025-03-16 15:51:45,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2025-03-16 15:51:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2025-03-16 15:51:45,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 5 [2025-03-16 15:51:45,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 15:51:45,108 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2025-03-16 15:51:45,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:45,108 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2025-03-16 15:51:45,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-16 15:51:45,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 15:51:45,108 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-16 15:51:45,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-16 15:51:45,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:51:45,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 15:51:45,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 15:51:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash 36230756, now seen corresponding path program 1 times [2025-03-16 15:51:45,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 15:51:45,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633712477] [2025-03-16 15:51:45,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 15:51:45,310 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:51:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 15:51:45,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 15:51:45,314 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 (3)] Waiting until timeout for monitored process [2025-03-16 15:51:45,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-16 15:51:45,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-16 15:51:45,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 15:51:45,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 15:51:45,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-16 15:51:45,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 15:51:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 15:51:51,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 15:51:51,028 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 15:51:51,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633712477] [2025-03-16 15:51:51,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1633712477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 15:51:51,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 15:51:51,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 15:51:51,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583597047] [2025-03-16 15:51:51,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 15:51:51,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 15:51:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 15:51:51,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 15:51:51,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-16 15:51:51,029 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:52,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-16 15:51:59,760 WARN L286 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 33 DAG size of output: 24 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-16 15:51:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 15:51:59,761 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2025-03-16 15:51:59,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 15:51:59,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 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) Word has length 5 [2025-03-16 15:51:59,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 15:51:59,761 INFO L225 Difference]: With dead ends: 6 [2025-03-16 15:51:59,761 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 15:51:59,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-16 15:51:59,762 INFO L435 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-16 15:51:59,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-16 15:51:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 15:51:59,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 15:51:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 15:51:59,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2025-03-16 15:51:59,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 15:51:59,766 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 15:51:59,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 15:51:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 15:51:59,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 15:51:59,768 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 15:51:59,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-03-16 15:51:59,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 15:51:59,972 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-16 15:51:59,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 15:51:59,977 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 15:51:59,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 03:51:59 BoogieIcfgContainer [2025-03-16 15:51:59,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 15:51:59,981 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 15:51:59,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 15:51:59,981 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 15:51:59,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 03:51:44" (3/4) ... [2025-03-16 15:51:59,984 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 15:51:59,989 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-16 15:51:59,989 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-16 15:51:59,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 15:51:59,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 15:52:00,048 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 15:52:00,051 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 15:52:00,051 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 15:52:00,052 INFO L158 Benchmark]: Toolchain (without parser) took 15895.02ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 37.1MB in the end (delta: 55.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-16 15:52:00,052 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:00,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.57ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 15:52:00,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.33ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:00,052 INFO L158 Benchmark]: Boogie Preprocessor took 30.02ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:00,053 INFO L158 Benchmark]: IcfgBuilder took 499.37ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 69.7MB in the end (delta: 9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 15:52:00,053 INFO L158 Benchmark]: TraceAbstraction took 15099.60ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 42.5MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 15:52:00,053 INFO L158 Benchmark]: Witness Printer took 70.06ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 37.1MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 15:52:00,054 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.57ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 81.5MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.33ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.02ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 499.37ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 69.7MB in the end (delta: 9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15099.60ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 42.5MB in the end (delta: 26.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 70.06ms. Allocated memory is still 117.4MB. Free memory was 42.5MB in the beginning and 37.1MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 10 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.7s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 1 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-16 15:52:00,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE