./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.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 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:04:48,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:04:48,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 19:04:48,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:04:48,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:04:48,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:04:48,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:04:48,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:04:48,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:04:48,509 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:04:48,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:04:48,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:04:48,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:04:48,510 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:04:48,510 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:04:48,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:04:48,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:04:48,513 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:04:48,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 19:04:48,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:04:48,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:04:48,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:04:48,515 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:04:48,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:04:48,516 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:04:48,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:04:48,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:04:48,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:04:48,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:04:48,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:04:48,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:04:48,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:04:48,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:04:48,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:04:48,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:04:48,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:04:48,519 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 19:04:48,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 19:04:48,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:04:48,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:04:48,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:04:48,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:04:48,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-11-19 19:04:48,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:04:48,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:04:48,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:04:48,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:04:48,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:04:48,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-11-19 19:04:50,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:04:50,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:04:50,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-11-19 19:04:50,272 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d72a0cd2/e1f91ce5c7234056923f226145a1966a/FLAG4d96ced68 [2024-11-19 19:04:50,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d72a0cd2/e1f91ce5c7234056923f226145a1966a [2024-11-19 19:04:50,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:04:50,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:04:50,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:04:50,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:04:50,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:04:50,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7769cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50, skipping insertion in model container [2024-11-19 19:04:50,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:04:50,504 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_tight.c[495,508] [2024-11-19 19:04:50,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:04:50,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:04:50,535 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_tight.c[495,508] [2024-11-19 19:04:50,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:04:50,552 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:04:50,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50 WrapperNode [2024-11-19 19:04:50,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:04:50,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:04:50,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:04:50,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:04:50,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,587 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-19 19:04:50,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:04:50,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:04:50,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:04:50,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:04:50,597 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,620 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]. [2024-11-19 19:04:50,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,631 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:04:50,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:04:50,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:04:50,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:04:50,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (1/1) ... [2024-11-19 19:04:50,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:04:50,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:04:50,682 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) [2024-11-19 19:04:50,685 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 [2024-11-19 19:04:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:04:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 19:04:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 19:04:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 19:04:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:04:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-19 19:04:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-19 19:04:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-19 19:04:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 19:04:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:04:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 19:04:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:04:50,816 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:04:50,818 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:04:50,957 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-19 19:04:50,958 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:04:50,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:04:50,969 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 19:04:50,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:50 BoogieIcfgContainer [2024-11-19 19:04:50,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:04:50,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:04:50,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:04:50,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:04:50,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:50" (1/3) ... [2024-11-19 19:04:50,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736a4264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:50, skipping insertion in model container [2024-11-19 19:04:50,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:50" (2/3) ... [2024-11-19 19:04:50,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736a4264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:50, skipping insertion in model container [2024-11-19 19:04:50,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:50" (3/3) ... [2024-11-19 19:04:50,976 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-11-19 19:04:50,989 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:04:50,990 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:04:51,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:04:51,043 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;@27f5991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:04:51,043 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:04:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-19 19:04:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 19:04:51,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:04:51,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 19:04:51,054 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:04:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:04:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1805304006, now seen corresponding path program 1 times [2024-11-19 19:04:51,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 19:04:51,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478323782] [2024-11-19 19:04:51,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:04:51,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 19:04:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:04:51,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:04:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:04:51,233 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 19:04:51,235 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:04:51,236 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:04:51,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 19:04:51,241 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 19:04:51,255 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:04:51,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:51 BoogieIcfgContainer [2024-11-19 19:04:51,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:04:51,260 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:04:51,260 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:04:51,260 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:04:51,261 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:50" (3/4) ... [2024-11-19 19:04:51,263 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-19 19:04:51,264 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:04:51,265 INFO L158 Benchmark]: Toolchain (without parser) took 970.33ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 69.7MB in the beginning and 150.9MB in the end (delta: -81.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:04:51,265 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:04:51,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.87ms. Allocated memory is still 140.5MB. Free memory was 69.4MB in the beginning and 57.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.94ms. Allocated memory is still 140.5MB. Free memory was 57.1MB in the beginning and 55.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,267 INFO L158 Benchmark]: Boogie Preprocessor took 51.98ms. Allocated memory is still 140.5MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,267 INFO L158 Benchmark]: RCFGBuilder took 328.70ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 53.3MB in the beginning and 169.8MB in the end (delta: -116.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,267 INFO L158 Benchmark]: TraceAbstraction took 288.11ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 152.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,268 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 203.4MB. Free memory was 152.0MB in the beginning and 150.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:51,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.87ms. Allocated memory is still 140.5MB. Free memory was 69.4MB in the beginning and 57.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.94ms. Allocated memory is still 140.5MB. Free memory was 57.1MB in the beginning and 55.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.98ms. Allocated memory is still 140.5MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.70ms. Allocated memory was 140.5MB in the beginning and 203.4MB in the end (delta: 62.9MB). Free memory was 53.3MB in the beginning and 169.8MB in the end (delta: -116.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 288.11ms. Allocated memory is still 203.4MB. Free memory was 168.8MB in the beginning and 152.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 203.4MB. Free memory was 152.0MB in the beginning and 150.9MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 9]: 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 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] EXPR i ^ x.i[1] VAL [y={6:0}] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; [L33] RET, EXPR cast(a) [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) [L9] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 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=15occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-19 19:04:51,292 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/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.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 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 19:04:53,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 19:04:53,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 19:04:53,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 19:04:53,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 19:04:53,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 19:04:53,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 19:04:53,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 19:04:53,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 19:04:53,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 19:04:53,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 19:04:53,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 19:04:53,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 19:04:53,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 19:04:53,357 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 19:04:53,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 19:04:53,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 19:04:53,358 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 19:04:53,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 19:04:53,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 19:04:53,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 19:04:53,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 19:04:53,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 19:04:53,359 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 19:04:53,360 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 19:04:53,360 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 19:04:53,360 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 19:04:53,360 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 19:04:53,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 19:04:53,361 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 19:04:53,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 19:04:53,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 19:04:53,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 19:04:53,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 19:04:53,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:04:53,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 19:04:53,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 19:04:53,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 19:04:53,362 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 19:04:53,362 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 19:04:53,362 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 19:04:53,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 19:04:53,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 19:04:53,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 19:04:53,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-11-19 19:04:53,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 19:04:53,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 19:04:53,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 19:04:53,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 19:04:53,655 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 19:04:53,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-11-19 19:04:55,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 19:04:55,199 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 19:04:55,200 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-11-19 19:04:55,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef477491/529ae6653720469da6719547db782e96/FLAG618239298 [2024-11-19 19:04:55,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef477491/529ae6653720469da6719547db782e96 [2024-11-19 19:04:55,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 19:04:55,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 19:04:55,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 19:04:55,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 19:04:55,231 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 19:04:55,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a0ada1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55, skipping insertion in model container [2024-11-19 19:04:55,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 19:04:55,400 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_tight.c[495,508] [2024-11-19 19:04:55,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:04:55,429 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 19:04:55,440 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_tight.c[495,508] [2024-11-19 19:04:55,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 19:04:55,467 INFO L204 MainTranslator]: Completed translation [2024-11-19 19:04:55,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55 WrapperNode [2024-11-19 19:04:55,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 19:04:55,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 19:04:55,469 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 19:04:55,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 19:04:55,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,498 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-11-19 19:04:55,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 19:04:55,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 19:04:55,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 19:04:55,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 19:04:55,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,524 INFO L175 MemorySlicer]: Split 10 memory accesses to 3 slices as follows [2, 3, 5]. 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]. [2024-11-19 19:04:55,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,525 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 19:04:55,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 19:04:55,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 19:04:55,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 19:04:55,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (1/1) ... [2024-11-19 19:04:55,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 19:04:55,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 19:04:55,580 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) [2024-11-19 19:04:55,583 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 [2024-11-19 19:04:55,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 19:04:55,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 19:04:55,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 19:04:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-19 19:04:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-19 19:04:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-19 19:04:55,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 19:04:55,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 19:04:55,928 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-19 19:04:55,928 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 19:04:55,936 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 19:04:55,936 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 19:04:55,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:55 BoogieIcfgContainer [2024-11-19 19:04:55,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 19:04:55,938 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 19:04:55,938 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 19:04:55,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 19:04:55,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:04:55" (1/3) ... [2024-11-19 19:04:55,941 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbaf27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:55, skipping insertion in model container [2024-11-19 19:04:55,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:04:55" (2/3) ... [2024-11-19 19:04:55,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbaf27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:04:55, skipping insertion in model container [2024-11-19 19:04:55,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:55" (3/3) ... [2024-11-19 19:04:55,943 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-11-19 19:04:55,956 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 19:04:55,956 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 19:04:55,998 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 19:04:56,005 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;@27cefc1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 19:04:56,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 19:04:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 19:04:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 19:04:56,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 19:04:56,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 19:04:56,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 19:04:56,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 19:04:56,023 INFO L85 PathProgramCache]: Analyzing trace with hash 28692803, now seen corresponding path program 1 times [2024-11-19 19:04:56,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 19:04:56,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172071716] [2024-11-19 19:04:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 19:04:56,033 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 [2024-11-19 19:04:56,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 19:04:56,036 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) [2024-11-19 19:04:56,037 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 [2024-11-19 19:04:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:04:56,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 19:04:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 19:04:56,296 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-19 19:04:56,297 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 19:04:56,298 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 19:04:56,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-19 19:04:56,500 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 [2024-11-19 19:04:56,504 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-19 19:04:56,529 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 19:04:56,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:04:56 BoogieIcfgContainer [2024-11-19 19:04:56,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 19:04:56,532 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 19:04:56,532 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 19:04:56,532 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 19:04:56,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:04:55" (3/4) ... [2024-11-19 19:04:56,533 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-19 19:04:56,558 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 19:04:56,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 19:04:56,559 INFO L158 Benchmark]: Toolchain (without parser) took 1334.93ms. Allocated memory is still 86.0MB. Free memory was 53.4MB in the beginning and 55.9MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:04:56,559 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:04:56,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.90ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 62.3MB in the end (delta: -9.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:56,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.56ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:56,560 INFO L158 Benchmark]: Boogie Preprocessor took 49.64ms. Allocated memory is still 86.0MB. Free memory was 60.5MB in the beginning and 58.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:56,561 INFO L158 Benchmark]: RCFGBuilder took 386.68ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 46.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 19:04:56,561 INFO L158 Benchmark]: TraceAbstraction took 593.42ms. Allocated memory is still 86.0MB. Free memory was 46.0MB in the beginning and 57.7MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 19:04:56,562 INFO L158 Benchmark]: Witness Printer took 26.29ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 55.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 19:04:56,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 56.6MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.90ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 62.3MB in the end (delta: -9.1MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.56ms. Allocated memory is still 86.0MB. Free memory was 62.3MB in the beginning and 60.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.64ms. Allocated memory is still 86.0MB. Free memory was 60.5MB in the beginning and 58.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.68ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 46.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 593.42ms. Allocated memory is still 86.0MB. Free memory was 46.0MB in the beginning and 57.7MB in the end (delta: -11.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 26.29ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 55.9MB in the end (delta: 1.8MB). 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: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; VAL [\result=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001113840564] [L33] RET, EXPR cast(a) [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) [L9] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-19 19:04:56,583 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