./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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 00:20:16,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:20:16,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:20:16,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:20:16,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:20:16,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:20:16,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:20:16,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:20:16,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:20:16,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:20:16,581 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:20:16,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:20:16,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:20:16,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:20:16,584 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:20:16,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:20:16,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:20:16,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:20:16,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:20:16,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:20:16,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:20:16,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:20:16,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:20:16,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:20:16,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:20:16,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:20:16,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:20:16,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:20:16,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:20:16,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:20:16,595 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:20:16,595 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:20:16,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:16,596 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:20:16,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:20:16,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:20:16,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:20:16,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:20:16,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:20:16,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:20:16,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:20:16,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:20:16,601 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-10-11 00:20:16,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:20:16,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:20:16,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:20:16,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:20:16,900 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:20:16,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-11 00:20:18,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:20:18,775 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:20:18,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-11 00:20:18,783 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/683dfd062/f9c8aaf6efc3402188d2c429dbaec4e5/FLAG14f915d4e [2024-10-11 00:20:18,798 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/683dfd062/f9c8aaf6efc3402188d2c429dbaec4e5 [2024-10-11 00:20:18,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:20:18,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:20:18,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:18,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:20:18,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:20:18,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:18" (1/1) ... [2024-10-11 00:20:18,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f01a9fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:18, skipping insertion in model container [2024-10-11 00:20:18,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:18" (1/1) ... [2024-10-11 00:20:18,834 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:20:19,005 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] [2024-10-11 00:20:19,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:19,032 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:20:19,042 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] [2024-10-11 00:20:19,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:19,066 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:20:19,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19 WrapperNode [2024-10-11 00:20:19,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:19,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:19,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:20:19,068 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:20:19,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,103 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-10-11 00:20:19,103 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:19,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:20:19,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:20:19,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:20:19,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,117 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,132 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]. [2024-10-11 00:20:19,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:20:19,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:20:19,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:20:19,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:20:19,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2024-10-11 00:20:19,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:20:19,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:20:19,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:20:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:20:19,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:20:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:20:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:20:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:20:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:20:19,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:20:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:20:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:20:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:20:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:20:19,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:20:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:20:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:20:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:20:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:20:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:20:19,390 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:20:19,393 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:20:19,581 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-10-11 00:20:19,582 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:20:19,613 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:20:19,614 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 00:20:19,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19 BoogieIcfgContainer [2024-10-11 00:20:19,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:20:19,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:20:19,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:20:19,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:20:19,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:18" (1/3) ... [2024-10-11 00:20:19,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad85d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:19, skipping insertion in model container [2024-10-11 00:20:19,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (2/3) ... [2024-10-11 00:20:19,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad85d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:19, skipping insertion in model container [2024-10-11 00:20:19,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19" (3/3) ... [2024-10-11 00:20:19,629 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-10-11 00:20:19,650 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:20:19,650 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:20:19,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:20:19,730 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;@1952c43c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:20:19,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:20:19,734 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) [2024-10-11 00:20:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 00:20:19,738 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:19,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 00:20:19,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:19,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash 63911146, now seen corresponding path program 1 times [2024-10-11 00:20:19,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:20:19,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322152163] [2024-10-11 00:20:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:19,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:20:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:19,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:20:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:19,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:20:19,993 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:20:19,995 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:20:19,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:20:20,003 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 00:20:20,027 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:20:20,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:20 BoogieIcfgContainer [2024-10-11 00:20:20,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:20:20,035 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:20:20,036 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:20:20,036 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:20:20,038 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:19" (3/4) ... [2024-10-11 00:20:20,040 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:20:20,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:20:20,043 INFO L158 Benchmark]: Toolchain (without parser) took 1241.37ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 83.7MB in the beginning and 130.4MB in the end (delta: -46.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:20,043 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:20,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.57ms. Allocated memory is still 138.4MB. Free memory was 83.7MB in the beginning and 71.5MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-11 00:20:20,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.49ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:20:20,046 INFO L158 Benchmark]: Boogie Preprocessor took 42.10ms. Allocated memory is still 138.4MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:20:20,046 INFO L158 Benchmark]: RCFGBuilder took 466.41ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 67.6MB in the beginning and 148.3MB in the end (delta: -80.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-10-11 00:20:20,047 INFO L158 Benchmark]: TraceAbstraction took 418.08ms. Allocated memory is still 184.5MB. Free memory was 147.2MB in the beginning and 130.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 00:20:20,047 INFO L158 Benchmark]: Witness Printer took 6.22ms. Allocated memory is still 184.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:20,050 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 138.4MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.57ms. Allocated memory is still 138.4MB. Free memory was 83.7MB in the beginning and 71.5MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.49ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.10ms. Allocated memory is still 138.4MB. Free memory was 69.8MB in the beginning and 67.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.41ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 67.6MB in the beginning and 148.3MB in the end (delta: -80.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 418.08ms. Allocated memory is still 184.5MB. Free memory was 147.2MB in the beginning and 130.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.22ms. Allocated memory is still 184.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 0.3s, 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 [2024-10-11 00:20:20,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 00:20:22,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:20:22,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:20:22,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:20:22,543 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:20:22,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:20:22,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:20:22,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:20:22,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:20:22,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:20:22,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:20:22,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:20:22,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:20:22,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:20:22,580 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:20:22,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:20:22,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:20:22,585 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:20:22,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:20:22,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:20:22,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:20:22,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:20:22,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:20:22,586 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:20:22,586 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:20:22,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:20:22,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:20:22,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:20:22,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:20:22,587 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:20:22,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:20:22,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:20:22,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:20:22,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:20:22,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:22,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:20:22,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:20:22,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:20:22,592 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:20:22,592 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:20:22,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:20:22,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:20:22,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:20:22,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:20:22,593 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:20:22,593 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 692e0f6bff326dae555773498e30d5c37d6c88dd20df70f4e6fff349bc763d90 [2024-10-11 00:20:22,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:20:22,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:20:22,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:20:22,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:20:22,992 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:20:22,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-11 00:20:24,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:20:24,906 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:20:24,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_tight.c [2024-10-11 00:20:24,920 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/40b0fbb9c/43f09aa28e944f2090c7b4702b6e32b7/FLAG41c93fed3 [2024-10-11 00:20:24,939 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/40b0fbb9c/43f09aa28e944f2090c7b4702b6e32b7 [2024-10-11 00:20:24,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:20:24,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:20:24,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:24,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:20:24,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:20:24,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615c600d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:24, skipping insertion in model container [2024-10-11 00:20:24,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:24" (1/1) ... [2024-10-11 00:20:24,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:20:25,170 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] [2024-10-11 00:20:25,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:25,216 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:20:25,231 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] [2024-10-11 00:20:25,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:20:25,263 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:20:25,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25 WrapperNode [2024-10-11 00:20:25,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:20:25,265 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:25,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:20:25,265 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:20:25,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,302 INFO L138 Inliner]: procedures = 20, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-10-11 00:20:25,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:20:25,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:20:25,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:20:25,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:20:25,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,333 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]. [2024-10-11 00:20:25,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,349 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:20:25,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:20:25,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:20:25,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:20:25,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (1/1) ... [2024-10-11 00:20:25,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:20:25,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:20:25,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:20:25,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:20:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:20:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-10-11 00:20:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-10-11 00:20:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:20:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:20:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:20:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:20:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:20:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:20:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:20:25,530 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:20:25,533 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:20:25,777 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-11 00:20:25,779 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:20:25,850 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:20:25,850 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 00:20:25,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25 BoogieIcfgContainer [2024-10-11 00:20:25,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:20:25,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:20:25,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:20:25,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:20:25,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:20:24" (1/3) ... [2024-10-11 00:20:25,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e7b00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:25, skipping insertion in model container [2024-10-11 00:20:25,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:25" (2/3) ... [2024-10-11 00:20:25,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14e7b00d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:20:25, skipping insertion in model container [2024-10-11 00:20:25,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25" (3/3) ... [2024-10-11 00:20:25,862 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2024-10-11 00:20:25,883 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:20:25,883 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:20:25,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:20:25,980 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;@30d2897a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:20:25,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:20:25,987 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) [2024-10-11 00:20:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 00:20:25,993 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:20:25,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 00:20:25,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:20:26,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:20:26,002 INFO L85 PathProgramCache]: Analyzing trace with hash 50198, now seen corresponding path program 1 times [2024-10-11 00:20:26,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:20:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772695607] [2024-10-11 00:20:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:20:26,016 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 [2024-10-11 00:20:26,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:20:26,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 00:20:26,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:20:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:26,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:20:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:20:26,413 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-11 00:20:26,415 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:20:26,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:20:26,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:20:26,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 00:20:26,625 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-11 00:20:26,643 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:20:26,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:20:26 BoogieIcfgContainer [2024-10-11 00:20:26,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:20:26,650 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:20:26,651 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:20:26,651 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:20:26,652 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:25" (3/4) ... [2024-10-11 00:20:26,653 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-11 00:20:26,694 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 00:20:26,694 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:20:26,696 INFO L158 Benchmark]: Toolchain (without parser) took 1751.54ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 47.1MB in the end (delta: -3.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,699 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:26,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.87ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 30.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.30ms. Allocated memory is still 65.0MB. Free memory was 30.6MB in the beginning and 28.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,700 INFO L158 Benchmark]: Boogie Preprocessor took 63.25ms. Allocated memory is still 65.0MB. Free memory was 28.9MB in the beginning and 44.7MB in the end (delta: -15.8MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,700 INFO L158 Benchmark]: RCFGBuilder took 484.02ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 30.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,701 INFO L158 Benchmark]: TraceAbstraction took 795.42ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 29.4MB in the beginning and 49.0MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:20:26,701 INFO L158 Benchmark]: Witness Printer took 45.02ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 47.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:20:26,707 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 46.1MB. Free memory is still 27.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.87ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 30.6MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.30ms. Allocated memory is still 65.0MB. Free memory was 30.6MB in the beginning and 28.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.25ms. Allocated memory is still 65.0MB. Free memory was 28.9MB in the beginning and 44.7MB in the end (delta: -15.8MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * RCFGBuilder took 484.02ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 30.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 795.42ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 29.4MB in the beginning and 49.0MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.02ms. Allocated memory is still 79.7MB. Free memory was 49.0MB in the beginning and 47.1MB in the end (delta: 1.9MB). 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: 0.7s, 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! [2024-10-11 00:20:26,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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