./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:49:50,794 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:49:50,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:49:50,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:49:50,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:49:50,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:49:50,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:49:50,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:49:50,898 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:49:50,898 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:49:50,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:49:50,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:49:50,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:49:50,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:49:50,899 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:49:50,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:49:50,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:49:50,899 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:49:50,900 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:49:50,901 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:50,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:49:50,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:50,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:49:50,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:49:50,902 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-jdk21/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 -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2025-01-09 00:49:51,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:49:51,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:49:51,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:49:51,213 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:49:51,213 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:49:51,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2025-01-09 00:49:52,478 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9c7ecedc/7349cc2e1b0344609e26d66e12a8da4e/FLAG56a1c7043 [2025-01-09 00:49:52,725 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:49:52,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2025-01-09 00:49:52,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9c7ecedc/7349cc2e1b0344609e26d66e12a8da4e/FLAG56a1c7043 [2025-01-09 00:49:52,783 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9c7ecedc/7349cc2e1b0344609e26d66e12a8da4e [2025-01-09 00:49:52,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:49:52,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:49:52,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:49:52,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:49:52,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:49:52,807 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:52,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a737a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52, skipping insertion in model container [2025-01-09 00:49:52,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:52,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:49:52,946 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2025-01-09 00:49:52,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:49:52,967 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:49:52,975 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2025-01-09 00:49:52,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:49:52,993 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:49:52,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52 WrapperNode [2025-01-09 00:49:52,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:49:52,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:49:52,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:49:52,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:49:53,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,021 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2025-01-09 00:49:53,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:49:53,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:49:53,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:49:53,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:49:53,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,042 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]. [2025-01-09 00:49:53,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,046 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:49:53,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:49:53,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:49:53,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:49:53,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (1/1) ... [2025-01-09 00:49:53,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:53,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:49:53,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 00:49:53,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 00:49:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:49:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:49:53,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:49:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:49:53,164 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:49:53,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:49:53,247 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2025-01-09 00:49:53,247 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:49:53,256 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:49:53,258 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:49:53,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:53 BoogieIcfgContainer [2025-01-09 00:49:53,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:49:53,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:49:53,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:49:53,265 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:49:53,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:49:52" (1/3) ... [2025-01-09 00:49:53,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1662dcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:49:53, skipping insertion in model container [2025-01-09 00:49:53,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:52" (2/3) ... [2025-01-09 00:49:53,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1662dcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:49:53, skipping insertion in model container [2025-01-09 00:49:53,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:53" (3/3) ... [2025-01-09 00:49:53,267 INFO L128 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2025-01-09 00:49:53,280 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:49:53,281 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG addsub_float_inexact.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:49:53,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:49:53,340 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;@75562485, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:49:53,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:49:53,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:49:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 00:49:53,348 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:49:53,348 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 00:49:53,348 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:49:53,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:49:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2025-01-09 00:49:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:49:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094647412] [2025-01-09 00:49:53,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:49:53,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:49:53,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 00:49:53,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 00:49:53,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:49:53,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:49:53,450 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 00:49:53,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 00:49:53,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 00:49:53,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:49:53,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 00:49:53,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 00:49:53,477 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 00:49:53,478 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:49:53,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:49:53,485 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 00:49:53,494 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:49:53,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:49:53 BoogieIcfgContainer [2025-01-09 00:49:53,500 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:49:53,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:49:53,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:49:53,501 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:49:53,502 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:53" (3/4) ... [2025-01-09 00:49:53,504 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 00:49:53,505 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:49:53,506 INFO L158 Benchmark]: Toolchain (without parser) took 709.77ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 72.7MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 00:49:53,507 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:53,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.68ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 95.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:49:53,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.65ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:53,508 INFO L158 Benchmark]: Boogie Preprocessor took 30.67ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:53,510 INFO L158 Benchmark]: RCFGBuilder took 203.98ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 85.0MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:49:53,510 INFO L158 Benchmark]: TraceAbstraction took 240.62ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 72.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:49:53,510 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 142.6MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:53,511 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.68ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 95.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.65ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.67ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 93.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.98ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 85.0MB in the end (delta: 8.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 240.62ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 72.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 142.6MB. Free memory is still 72.7MB. 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: 6]: 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 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 0.f) [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 [2025-01-09 00:49:53,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:49:55,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:49:55,819 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 00:49:55,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:49:55,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:49:55,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:49:55,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:49:55,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:49:55,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:49:55,853 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:49:55,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:49:55,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:49:55,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:49:55,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:49:55,853 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:49:55,854 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:49:55,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:49:55,855 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:49:55,855 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:49:55,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:49:55,856 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:49:55,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:49:55,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:49:55,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:49:55,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:49:55,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:55,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:49:55,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:55,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:49:55,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:49:55,858 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-jdk21/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 -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2025-01-09 00:49:56,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:49:56,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:49:56,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:49:56,148 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:49:56,149 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:49:56,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2025-01-09 00:49:57,440 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd7a55c7b/28d1e7238b6b487baaac67fb479bf2f4/FLAGaeaf23659 [2025-01-09 00:49:57,663 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:49:57,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2025-01-09 00:49:57,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd7a55c7b/28d1e7238b6b487baaac67fb479bf2f4/FLAGaeaf23659 [2025-01-09 00:49:57,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd7a55c7b/28d1e7238b6b487baaac67fb479bf2f4 [2025-01-09 00:49:57,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:49:57,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:49:57,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:49:57,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:49:57,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:49:57,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbf0ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57, skipping insertion in model container [2025-01-09 00:49:57,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:49:57,842 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2025-01-09 00:49:57,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:49:57,871 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:49:57,881 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c[394,407] [2025-01-09 00:49:57,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:49:57,901 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:49:57,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57 WrapperNode [2025-01-09 00:49:57,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:49:57,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:49:57,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:49:57,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:49:57,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,935 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2025-01-09 00:49:57,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:49:57,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:49:57,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:49:57,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:49:57,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,958 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]. [2025-01-09 00:49:57,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,973 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:49:57,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:49:57,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:49:57,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:49:57,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (1/1) ... [2025-01-09 00:49:57,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:49:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:49:58,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 00:49:58,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 00:49:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:49:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:49:58,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:49:58,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 00:49:58,098 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:49:58,100 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:49:58,508 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-09 00:49:58,508 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:49:58,519 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:49:58,519 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:49:58,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:58 BoogieIcfgContainer [2025-01-09 00:49:58,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:49:58,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:49:58,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:49:58,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:49:58,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:49:57" (1/3) ... [2025-01-09 00:49:58,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28158be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:49:58, skipping insertion in model container [2025-01-09 00:49:58,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:49:57" (2/3) ... [2025-01-09 00:49:58,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28158be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:49:58, skipping insertion in model container [2025-01-09 00:49:58,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:58" (3/3) ... [2025-01-09 00:49:58,532 INFO L128 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2025-01-09 00:49:58,547 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:49:58,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG addsub_float_inexact.c that has 1 procedures, 9 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-01-09 00:49:58,599 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:49:58,612 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;@2868090b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:49:58,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:49:58,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:49:58,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 00:49:58,622 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:49:58,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 00:49:58,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:49:58,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:49:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2025-01-09 00:49:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 00:49:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012264795] [2025-01-09 00:49:58,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:49:58,641 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 [2025-01-09 00:49:58,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 00:49:58,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/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) [2025-01-09 00:49:58,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 00:49:58,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 00:49:58,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 00:49:58,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:49:58,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:49:58,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 00:49:58,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:49:58,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:49:58,887 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 00:49:58,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 00:49:58,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012264795] [2025-01-09 00:49:58,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012264795] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:49:58,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:49:58,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 00:49:58,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915157576] [2025-01-09 00:49:58,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:49:58,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 00:49:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 00:49:58,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 00:49:58,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 00:49:58,915 INFO L87 Difference]: Start difference. First 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-01-09 00:49:59,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:49:59,038 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2025-01-09 00:49:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 00:49:59,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-01-09 00:49:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:49:59,043 INFO L225 Difference]: With dead ends: 13 [2025-01-09 00:49:59,043 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 00:49:59,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 00:49:59,048 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 00:49:59,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 00:49:59,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 00:49:59,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 00:49:59,063 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) [2025-01-09 00:49:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 00:49:59,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2025-01-09 00:49:59,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:49:59,067 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 00:49:59,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-01-09 00:49:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 00:49:59,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 00:49:59,069 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 00:49:59,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 [2025-01-09 00:49:59,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/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 [2025-01-09 00:49:59,273 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 00:49:59,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 00:49:59,280 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 00:49:59,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 12:49:59 BoogieIcfgContainer [2025-01-09 00:49:59,285 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 00:49:59,286 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 00:49:59,286 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 00:49:59,286 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 00:49:59,287 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:49:58" (3/4) ... [2025-01-09 00:49:59,289 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 00:49:59,294 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-01-09 00:49:59,294 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 00:49:59,295 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 00:49:59,295 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 00:49:59,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 00:49:59,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 00:49:59,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 00:49:59,360 INFO L158 Benchmark]: Toolchain (without parser) took 1663.35ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 45.1MB in the end (delta: 47.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-09 00:49:59,361 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:59,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.17ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:49:59,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:59,363 INFO L158 Benchmark]: Boogie Preprocessor took 39.23ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 00:49:59,364 INFO L158 Benchmark]: RCFGBuilder took 543.02ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 70.5MB in the end (delta: 8.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:49:59,364 INFO L158 Benchmark]: TraceAbstraction took 762.38ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 50.5MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 00:49:59,365 INFO L158 Benchmark]: Witness Printer took 72.28ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 45.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 00:49:59,366 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 was 62.2MB in the beginning and 62.2MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.17ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 81.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.23ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 79.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 543.02ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 70.5MB in the end (delta: 8.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 762.38ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 50.5MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 72.28ms. Allocated memory is still 117.4MB. Free memory was 50.5MB in the beginning and 45.1MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. 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: 6]: 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 1 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-01-09 00:49:59,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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