./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 61a67961 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.fs.cvc5-61a6796-m [2024-10-14 00:29:43,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:29:43,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:29:43,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:29:43,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:29:43,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:29:43,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:29:43,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:29:43,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:29:43,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:29:43,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:29:43,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:29:43,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:29:43,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:29:43,303 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:29:43,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:29:43,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:29:43,307 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:29:43,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:29:43,308 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:29:43,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:29:43,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:29:43,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:29:43,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:29:43,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:29:43,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:29:43,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:29:43,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:29:43,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:29:43,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:29:43,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:29:43,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:29:43,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:29:43,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:29:43,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:29:43,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:29:43,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:29:43,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:29:43,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:29:43,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:29:43,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:29:43,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:29:43,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-10-14 00:29:43,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:29:43,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:29:43,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:29:43,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:29:43,626 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:29:43,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-14 00:29:45,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:29:45,484 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:29:45,485 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-14 00:29:45,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90cc95b1b/b6c029452c1d4e648729fac9590c682c/FLAG8d4e59c33 [2024-10-14 00:29:45,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90cc95b1b/b6c029452c1d4e648729fac9590c682c [2024-10-14 00:29:45,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:29:45,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:29:45,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:29:45,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:29:45,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:29:45,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7958e789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45, skipping insertion in model container [2024-10-14 00:29:45,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,546 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:29:45,701 WARN L248 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] [2024-10-14 00:29:45,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:29:45,729 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:29:45,744 WARN L248 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] [2024-10-14 00:29:45,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:29:45,775 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:29:45,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45 WrapperNode [2024-10-14 00:29:45,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:29:45,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:29:45,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:29:45,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:29:45,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,811 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-10-14 00:29:45,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:29:45,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:29:45,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:29:45,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:29:45,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,826 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,840 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]. [2024-10-14 00:29:45,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,851 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:29:45,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:29:45,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:29:45,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:29:45,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (1/1) ... [2024-10-14 00:29:45,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:29:45,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:29:45,889 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) [2024-10-14 00:29:45,892 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 [2024-10-14 00:29:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:29:45,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:29:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 00:29:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 00:29:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:29:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-14 00:29:45,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:29:45,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 00:29:45,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 00:29:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 00:29:45,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:29:46,051 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:29:46,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:29:46,196 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-14 00:29:46,196 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:29:46,226 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:29:46,227 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 00:29:46,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:46 BoogieIcfgContainer [2024-10-14 00:29:46,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:29:46,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:29:46,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:29:46,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:29:46,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:29:45" (1/3) ... [2024-10-14 00:29:46,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d8109a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:29:46, skipping insertion in model container [2024-10-14 00:29:46,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:45" (2/3) ... [2024-10-14 00:29:46,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d8109a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:29:46, skipping insertion in model container [2024-10-14 00:29:46,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:46" (3/3) ... [2024-10-14 00:29:46,245 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-10-14 00:29:46,263 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:29:46,264 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:29:46,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:29:46,348 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;@722c82b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:29:46,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:29:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-10-14 00:29:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 00:29:46,395 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:29:46,396 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 00:29:46,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:29:46,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:29:46,404 INFO L85 PathProgramCache]: Analyzing trace with hash 63911146, now seen corresponding path program 1 times [2024-10-14 00:29:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:29:46,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393458094] [2024-10-14 00:29:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:29:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:29:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:29:46,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:29:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:29:46,663 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 00:29:46,665 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:29:46,666 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:29:46,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:29:46,673 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-14 00:29:46,697 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:29:46,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:29:46 BoogieIcfgContainer [2024-10-14 00:29:46,703 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:29:46,704 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:29:46,704 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:29:46,704 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:29:46,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:46" (3/4) ... [2024-10-14 00:29:46,714 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-14 00:29:46,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:29:46,717 INFO L158 Benchmark]: Toolchain (without parser) took 1203.03ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 99.9MB in the beginning and 187.5MB in the end (delta: -87.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:29:46,717 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 155.2MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:29:46,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.48ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 88.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 00:29:46,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.57ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 86.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:29:46,721 INFO L158 Benchmark]: Boogie Preprocessor took 41.25ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:29:46,722 INFO L158 Benchmark]: RCFGBuilder took 373.01ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 70.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 00:29:46,722 INFO L158 Benchmark]: TraceAbstraction took 474.12ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 69.8MB in the beginning and 187.5MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:29:46,723 INFO L158 Benchmark]: Witness Printer took 11.68ms. Allocated memory is still 226.5MB. Free memory is still 187.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:29:46,725 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 155.2MB. Free memory is still 115.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.48ms. Allocated memory is still 155.2MB. Free memory was 99.5MB in the beginning and 88.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.57ms. Allocated memory is still 155.2MB. Free memory was 88.2MB in the beginning and 86.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.25ms. Allocated memory is still 155.2MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.01ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 70.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 474.12ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 69.8MB in the beginning and 187.5MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 11.68ms. Allocated memory is still 226.5MB. Free memory is still 187.5MB. 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: 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 bitwiseOr at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23, overapproximation of someBinaryDOUBLEComparisonOperation at line 34. 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=11occurred 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 could not prove your program: unable to determine feasibility of some traces [2024-10-14 00:29:46,766 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.fs.cvc5-61a6796-m [2024-10-14 00:29:49,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:29:49,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-14 00:29:49,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:29:49,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:29:49,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:29:49,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:29:49,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:29:49,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:29:49,313 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:29:49,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:29:49,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:29:49,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:29:49,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:29:49,315 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:29:49,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:29:49,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:29:49,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:29:49,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:29:49,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:29:49,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:29:49,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:29:49,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:29:49,321 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 00:29:49,324 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-14 00:29:49,324 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:29:49,325 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-14 00:29:49,325 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:29:49,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:29:49,325 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:29:49,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:29:49,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:29:49,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:29:49,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:29:49,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:29:49,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:29:49,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:29:49,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:29:49,339 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-14 00:29:49,339 INFO L153 SettingsManager]: * Command for external solver=cvc5 --incremental --print-success --lang smt [2024-10-14 00:29:49,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:29:49,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:29:49,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:29:49,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:29:49,341 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-14 00:29:49,341 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-10-14 00:29:49,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:29:49,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:29:49,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:29:49,721 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:29:49,721 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:29:49,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-14 00:29:51,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:29:51,792 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:29:51,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-14 00:29:51,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b632cccda/08a6102558b14d35aca3e3ef71be81d4/FLAGdb6611589 [2024-10-14 00:29:51,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b632cccda/08a6102558b14d35aca3e3ef71be81d4 [2024-10-14 00:29:51,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:29:51,818 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:29:51,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:29:51,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:29:51,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:29:51,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:29:51" (1/1) ... [2024-10-14 00:29:51,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6618f0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:51, skipping insertion in model container [2024-10-14 00:29:51,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:29:51" (1/1) ... [2024-10-14 00:29:51,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:29:52,017 WARN L248 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] [2024-10-14 00:29:52,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:29:52,063 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:29:52,076 WARN L248 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] [2024-10-14 00:29:52,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:29:52,112 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:29:52,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52 WrapperNode [2024-10-14 00:29:52,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:29:52,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:29:52,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:29:52,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:29:52,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,158 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-10-14 00:29:52,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:29:52,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:29:52,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:29:52,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:29:52,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,192 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]. [2024-10-14 00:29:52,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,217 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,226 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:29:52,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:29:52,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:29:52,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:29:52,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (1/1) ... [2024-10-14 00:29:52,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:29:52,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:29:52,273 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) [2024-10-14 00:29:52,279 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 [2024-10-14 00:29:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:29:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-14 00:29:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-14 00:29:52,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:29:52,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-14 00:29:52,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-14 00:29:52,431 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:29:52,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:29:52,705 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-14 00:29:52,706 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:29:52,787 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:29:52,787 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 00:29:52,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:52 BoogieIcfgContainer [2024-10-14 00:29:52,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:29:52,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:29:52,796 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:29:52,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:29:52,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:29:51" (1/3) ... [2024-10-14 00:29:52,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca90142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:29:52, skipping insertion in model container [2024-10-14 00:29:52,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:29:52" (2/3) ... [2024-10-14 00:29:52,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca90142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:29:52, skipping insertion in model container [2024-10-14 00:29:52,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:52" (3/3) ... [2024-10-14 00:29:52,808 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-10-14 00:29:52,828 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:29:52,829 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:29:52,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:29:52,910 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;@1bc06765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:29:52,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:29:52,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-10-14 00:29:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 00:29:52,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:29:52,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 00:29:52,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:29:52,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:29:52,931 INFO L85 PathProgramCache]: Analyzing trace with hash 50198, now seen corresponding path program 1 times [2024-10-14 00:29:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-14 00:29:52,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986522571] [2024-10-14 00:29:52,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:29:52,947 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 [2024-10-14 00:29:52,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-14 00:29:52,951 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) [2024-10-14 00:29:52,952 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 [2024-10-14 00:29:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:29:53,139 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 00:29:53,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 00:29:53,272 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-14 00:29:53,274 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 00:29:53,275 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 00:29:53,288 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 [2024-10-14 00:29:53,481 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 [2024-10-14 00:29:53,486 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-14 00:29:53,501 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 00:29:53,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:29:53 BoogieIcfgContainer [2024-10-14 00:29:53,504 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 00:29:53,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 00:29:53,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 00:29:53,505 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 00:29:53,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:29:52" (3/4) ... [2024-10-14 00:29:53,506 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-14 00:29:53,543 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 00:29:53,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 00:29:53,544 INFO L158 Benchmark]: Toolchain (without parser) took 1726.43ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 39.4MB in the beginning and 32.6MB in the end (delta: 6.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,545 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 00:29:53,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.37ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 26.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.73ms. Allocated memory is still 60.8MB. Free memory was 26.9MB in the beginning and 25.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,546 INFO L158 Benchmark]: Boogie Preprocessor took 72.96ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 25.4MB in the beginning and 64.1MB in the end (delta: -38.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,546 INFO L158 Benchmark]: RCFGBuilder took 557.10ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 49.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,547 INFO L158 Benchmark]: TraceAbstraction took 708.93ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 34.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,547 INFO L158 Benchmark]: Witness Printer took 39.03ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 32.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 00:29:53,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 35.6MB in the beginning and 35.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.37ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 26.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.73ms. Allocated memory is still 60.8MB. Free memory was 26.9MB in the beginning and 25.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.96ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 25.4MB in the beginning and 64.1MB in the end (delta: -38.7MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * RCFGBuilder took 557.10ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 49.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 708.93ms. Allocated memory is still 83.9MB. Free memory was 48.5MB in the beginning and 34.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 39.03ms. Allocated memory is still 83.9MB. Free memory was 34.3MB in the beginning and 32.6MB in the end (delta: 1.6MB). 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; [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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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! [2024-10-14 00:29:53,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE