./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:13:17,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:13:17,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:13:17,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:13:17,713 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:13:17,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:13:17,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:13:17,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:13:17,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:13:17,747 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:13:17,748 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:13:17,748 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:13:17,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:13:17,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:13:17,749 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:13:17,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:13:17,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:13:17,750 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:13:17,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:13:17,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:13:17,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:13:17,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:13:17,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:13:17,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:13:17,751 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:13:17,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:13:17,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:13:17,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:13:17,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:13:17,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:13:17,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:13:17,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:13:17,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:13:17,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:13:17,754 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:13:17,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:13:17,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:13:17,755 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2024-11-08 12:13:17,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:13:17,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:13:17,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:13:17,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:13:17,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:13:17,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-08 12:13:19,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:13:19,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:13:19,318 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-08 12:13:19,328 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264c286a3/de308c793cb545adbfb64ed4a276250a/FLAGc52a9b37a [2024-11-08 12:13:19,730 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264c286a3/de308c793cb545adbfb64ed4a276250a [2024-11-08 12:13:19,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:13:19,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:13:19,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:13:19,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:13:19,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:13:19,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:19,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11582024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19, skipping insertion in model container [2024-11-08 12:13:19,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:19,755 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:13:19,903 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/float-benchs/cast_union_loose.c[582,595] [2024-11-08 12:13:19,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:13:19,929 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:13:19,939 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/float-benchs/cast_union_loose.c[582,595] [2024-11-08 12:13:19,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:13:19,960 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:13:19,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19 WrapperNode [2024-11-08 12:13:19,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:13:19,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:13:19,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:13:19,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:13:19,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:19,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:19,992 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-08 12:13:19,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:13:19,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:13:19,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:13:19,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:13:20,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,016 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 5, 3]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2024-11-08 12:13:20,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:13:20,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:13:20,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:13:20,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:13:20,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (1/1) ... [2024-11-08 12:13:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:13:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:13:20,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:13:20,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:13:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:13:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:13:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:13:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:13:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:13:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:13:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:13:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:13:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:13:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:13:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:13:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:13:20,192 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:13:20,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:13:20,330 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 12:13:20,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:13:20,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:13:20,338 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:13:20,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:20 BoogieIcfgContainer [2024-11-08 12:13:20,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:13:20,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:13:20,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:13:20,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:13:20,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:13:19" (1/3) ... [2024-11-08 12:13:20,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f03215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:13:20, skipping insertion in model container [2024-11-08 12:13:20,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:19" (2/3) ... [2024-11-08 12:13:20,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f03215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:13:20, skipping insertion in model container [2024-11-08 12:13:20,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:20" (3/3) ... [2024-11-08 12:13:20,344 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2024-11-08 12:13:20,355 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:13:20,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:13:20,395 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:13:20,400 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;@2398b0c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:13:20,401 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:13:20,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:20,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:13:20,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:13:20,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:13:20,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:20,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:20,413 INFO L85 PathProgramCache]: Analyzing trace with hash -593731159, now seen corresponding path program 1 times [2024-11-08 12:13:20,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:13:20,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733543409] [2024-11-08 12:13:20,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:20,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:13:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:13:20,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:13:20,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:13:20,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733543409] [2024-11-08 12:13:20,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733543409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:13:20,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:13:20,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:13:20,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867803761] [2024-11-08 12:13:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:13:20,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:13:20,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:13:20,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:13:20,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:13:20,583 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:13:20,593 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2024-11-08 12:13:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) Word has length 9 [2024-11-08 12:13:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:13:20,600 INFO L225 Difference]: With dead ends: 31 [2024-11-08 12:13:20,600 INFO L226 Difference]: Without dead ends: 13 [2024-11-08 12:13:20,602 INFO L431 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 [2024-11-08 12:13:20,605 INFO L432 NwaCegarLoop]: 19 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, 19 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 [2024-11-08 12:13:20,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:13:20,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-08 12:13:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-08 12:13:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:20,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-11-08 12:13:20,626 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2024-11-08 12:13:20,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:13:20,627 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-11-08 12:13:20,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:20,627 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2024-11-08 12:13:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 12:13:20,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:13:20,628 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:13:20,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:13:20,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:20,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1181276203, now seen corresponding path program 1 times [2024-11-08 12:13:20,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:13:20,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329762416] [2024-11-08 12:13:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:20,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:13:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:13:20,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:13:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:13:20,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:13:20,764 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:13:20,766 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:13:20,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:13:20,771 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 12:13:20,790 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:13:20,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:13:20 BoogieIcfgContainer [2024-11-08 12:13:20,792 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:13:20,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:13:20,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:13:20,793 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:13:20,793 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:20" (3/4) ... [2024-11-08 12:13:20,795 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:13:20,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:13:20,798 INFO L158 Benchmark]: Toolchain (without parser) took 1064.10ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 67.5MB in the beginning and 154.8MB in the end (delta: -87.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:20,798 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:20,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.39ms. Allocated memory is still 138.4MB. Free memory was 67.5MB in the beginning and 54.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 12:13:20,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.61ms. Allocated memory is still 138.4MB. Free memory was 54.6MB in the beginning and 53.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:20,799 INFO L158 Benchmark]: Boogie Preprocessor took 33.19ms. Allocated memory is still 138.4MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:20,800 INFO L158 Benchmark]: RCFGBuilder took 307.49ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 51.0MB in the beginning and 157.5MB in the end (delta: -106.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:20,800 INFO L158 Benchmark]: TraceAbstraction took 452.96ms. Allocated memory is still 190.8MB. Free memory was 157.5MB in the beginning and 154.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2024-11-08 12:13:20,800 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 190.8MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:20,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.39ms. Allocated memory is still 138.4MB. Free memory was 67.5MB in the beginning and 54.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.61ms. Allocated memory is still 138.4MB. Free memory was 54.6MB in the beginning and 53.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.19ms. Allocated memory is still 138.4MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.49ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 51.0MB in the beginning and 157.5MB in the end (delta: -106.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 452.96ms. Allocated memory is still 190.8MB. Free memory was 157.5MB in the beginning and 154.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 190.8MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] EXPR i ^ x.i[1] VAL [y={6:0}] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 19 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, 19 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=17occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:13:20,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:13:22,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:13:22,671 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:13:22,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:13:22,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:13:22,695 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:13:22,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:13:22,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:13:22,696 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:13:22,696 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:13:22,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:13:22,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:13:22,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:13:22,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:13:22,697 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:13:22,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:13:22,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:13:22,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:13:22,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:13:22,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:13:22,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:13:22,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:13:22,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:13:22,700 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:13:22,700 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:13:22,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:13:22,700 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:13:22,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:13:22,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:13:22,701 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:13:22,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:13:22,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:13:22,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:13:22,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:13:22,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:13:22,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:13:22,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:13:22,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:13:22,703 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:13:22,703 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:13:22,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:13:22,704 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:13:22,704 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:13:22,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:13:22,705 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2024-11-08 12:13:22,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:13:22,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:13:22,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:13:22,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:13:22,963 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:13:22,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-08 12:13:24,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:13:24,363 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:13:24,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2024-11-08 12:13:24,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb4555de/cb309a07d5614595ad1f2866bc8221ec/FLAGafbd79245 [2024-11-08 12:13:24,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bb4555de/cb309a07d5614595ad1f2866bc8221ec [2024-11-08 12:13:24,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:13:24,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:13:24,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:13:24,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:13:24,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:13:24,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ec926f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24, skipping insertion in model container [2024-11-08 12:13:24,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:13:24,536 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/float-benchs/cast_union_loose.c[582,595] [2024-11-08 12:13:24,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:13:24,563 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:13:24,574 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/float-benchs/cast_union_loose.c[582,595] [2024-11-08 12:13:24,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:13:24,602 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:13:24,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24 WrapperNode [2024-11-08 12:13:24,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:13:24,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:13:24,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:13:24,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:13:24,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,621 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,639 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-11-08 12:13:24,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:13:24,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:13:24,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:13:24,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:13:24,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,652 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,663 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 5, 3]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 4 writes are split as follows [0, 2, 2]. [2024-11-08 12:13:24,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:13:24,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:13:24,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:13:24,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:13:24,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (1/1) ... [2024-11-08 12:13:24,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:13:24,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:13:24,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:13:24,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:13:24,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:13:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 12:13:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 12:13:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 12:13:24,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:13:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:13:24,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:13:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:13:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:13:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:13:24,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:13:24,875 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:13:24,877 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:13:25,097 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-08 12:13:25,098 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:13:25,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:13:25,106 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 12:13:25,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:25 BoogieIcfgContainer [2024-11-08 12:13:25,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:13:25,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:13:25,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:13:25,111 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:13:25,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:13:24" (1/3) ... [2024-11-08 12:13:25,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c5e727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:13:25, skipping insertion in model container [2024-11-08 12:13:25,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:13:24" (2/3) ... [2024-11-08 12:13:25,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c5e727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:13:25, skipping insertion in model container [2024-11-08 12:13:25,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:25" (3/3) ... [2024-11-08 12:13:25,113 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2024-11-08 12:13:25,126 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:13:25,127 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:13:25,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:13:25,173 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;@1e2ca375, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:13:25,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:13:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:25,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 12:13:25,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:13:25,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:13:25,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:25,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2024-11-08 12:13:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:13:25,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131865451] [2024-11-08 12:13:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:25,195 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 12:13:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:13:25,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 12:13:25,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 12:13:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:13:25,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:13:25,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:13:25,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:13:25,344 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:13:25,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:13:25,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131865451] [2024-11-08 12:13:25,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131865451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:13:25,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:13:25,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:13:25,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872943775] [2024-11-08 12:13:25,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:13:25,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:13:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:13:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:13:25,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:13:25,372 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:13:25,380 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-08 12:13:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:13:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-08 12:13:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:13:25,386 INFO L225 Difference]: With dead ends: 21 [2024-11-08 12:13:25,386 INFO L226 Difference]: Without dead ends: 8 [2024-11-08 12:13:25,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:13:25,392 INFO L432 NwaCegarLoop]: 11 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, 11 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 [2024-11-08 12:13:25,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:13:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-08 12:13:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-08 12:13:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2024-11-08 12:13:25,415 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2024-11-08 12:13:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:13:25,415 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2024-11-08 12:13:25,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:13:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-11-08 12:13:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 12:13:25,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:13:25,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:13:25,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-08 12:13:25,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 12:13:25,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:13:25,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:13:25,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2024-11-08 12:13:25,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:13:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35804399] [2024-11-08 12:13:25,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:13:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 12:13:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:13:25,624 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) [2024-11-08 12:13:25,625 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 [2024-11-08 12:13:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:13:25,760 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:13:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:13:25,863 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-08 12:13:25,863 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:13:25,865 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:13:25,874 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 [2024-11-08 12:13:26,069 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 [2024-11-08 12:13:26,072 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 12:13:26,085 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:13:26,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:13:26 BoogieIcfgContainer [2024-11-08 12:13:26,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:13:26,089 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:13:26,090 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:13:26,090 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:13:26,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:13:25" (3/4) ... [2024-11-08 12:13:26,091 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 12:13:26,119 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:13:26,122 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:13:26,123 INFO L158 Benchmark]: Toolchain (without parser) took 1734.50ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 52.8MB in the beginning and 72.8MB in the end (delta: -20.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,123 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:26,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.18ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 38.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.08ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,124 INFO L158 Benchmark]: Boogie Preprocessor took 43.19ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 34.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,124 INFO L158 Benchmark]: RCFGBuilder took 420.94ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 34.6MB in the beginning and 71.3MB in the end (delta: -36.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,124 INFO L158 Benchmark]: TraceAbstraction took 981.53ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 74.9MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:13:26,125 INFO L158 Benchmark]: Witness Printer took 32.91ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:13:26,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.18ms. Allocated memory is still 75.5MB. Free memory was 52.6MB in the beginning and 38.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.08ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 37.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.19ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 34.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.94ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 34.6MB in the beginning and 71.3MB in the end (delta: -36.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 981.53ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 74.9MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.91ms. Allocated memory is still 102.8MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\result=NaN] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 11 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, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 1 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-08 12:13:26,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE