./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:22:55,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:22:55,498 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:22:55,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:22:55,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:22:55,539 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:22:55,540 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:22:55,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:22:55,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:22:55,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:22:55,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:22:55,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:22:55,546 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:22:55,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:22:55,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:22:55,548 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:22:55,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:22:55,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:22:55,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:22:55,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:22:55,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:22:55,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:22:55,554 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:22:55,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:22:55,555 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:22:55,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:22:55,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:22:55,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:22:55,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:55,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:22:55,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:22:55,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:22:55,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:22:55,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:22:55,562 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:22:55,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:22:55,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:22:55,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:22:55,564 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:22:55,564 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-06 22:22:55,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:22:55,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:22:55,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:22:55,961 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:22:55,962 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:22:55,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-06 22:22:59,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:22:59,543 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:22:59,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-06 22:22:59,554 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/931a6d017/63aaaaf3c6e7439e8143432b52e0b377/FLAG39a23f9e5 [2023-11-06 22:22:59,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/931a6d017/63aaaaf3c6e7439e8143432b52e0b377 [2023-11-06 22:22:59,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:22:59,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:22:59,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:59,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:22:59,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:22:59,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,590 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bdac74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59, skipping insertion in model container [2023-11-06 22:22:59,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,616 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:22:59,818 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-06 22:22:59,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:59,850 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:22:59,868 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-06 22:22:59,870 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:22:59,889 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:22:59,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59 WrapperNode [2023-11-06 22:22:59,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:22:59,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:59,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:22:59,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:22:59,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,934 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2023-11-06 22:22:59,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:22:59,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:22:59,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:22:59,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:22:59,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:22:59,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:22:59,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:22:59,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:22:59,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (1/1) ... [2023-11-06 22:22:59,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:22:59,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:00,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:00,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:23:00,176 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:00,179 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:00,345 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:00,353 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:00,353 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:23:00,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:00 BoogieIcfgContainer [2023-11-06 22:23:00,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:00,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:00,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:00,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:00,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:22:59" (1/3) ... [2023-11-06 22:23:00,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470dcee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:00, skipping insertion in model container [2023-11-06 22:23:00,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:22:59" (2/3) ... [2023-11-06 22:23:00,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470dcee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:00, skipping insertion in model container [2023-11-06 22:23:00,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:00" (3/3) ... [2023-11-06 22:23:00,381 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-06 22:23:00,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:00,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:23:00,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:00,487 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@790c29e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:00,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:23:00,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:00,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:23:00,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:00,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:23:00,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:00,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:00,514 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2023-11-06 22:23:00,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:23:00,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543770523] [2023-11-06 22:23:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:23:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:00,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:23:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:00,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:23:00,740 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:23:00,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:23:00,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:23:00,751 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 22:23:00,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:23:00,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:23:00 BoogieIcfgContainer [2023-11-06 22:23:00,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:23:00,785 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:23:00,785 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:23:00,786 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:23:00,786 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:00" (3/4) ... [2023-11-06 22:23:00,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:23:00,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:23:00,794 INFO L158 Benchmark]: Toolchain (without parser) took 1214.97ms. Allocated memory is still 148.9MB. Free memory was 118.8MB in the beginning and 83.9MB in the end (delta: 35.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,795 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:00,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.31ms. Allocated memory is still 148.9MB. Free memory was 118.8MB in the beginning and 108.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.42ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:00,800 INFO L158 Benchmark]: Boogie Preprocessor took 32.23ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 946.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,808 INFO L158 Benchmark]: RCFGBuilder took 386.18ms. Allocated memory is still 148.9MB. Free memory was 106.3MB in the beginning and 97.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,810 INFO L158 Benchmark]: TraceAbstraction took 421.72ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 84.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:23:00,812 INFO L158 Benchmark]: Witness Printer took 7.71ms. Allocated memory is still 148.9MB. Free memory was 84.3MB in the beginning and 83.9MB in the end (delta: 369.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:00,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.31ms. Allocated memory is still 148.9MB. Free memory was 118.8MB in the beginning and 108.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.42ms. Allocated memory is still 148.9MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.23ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 106.6MB in the end (delta: 946.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.18ms. Allocated memory is still 148.9MB. Free memory was 106.3MB in the beginning and 97.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 421.72ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 84.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.71ms. Allocated memory is still 148.9MB. Free memory was 84.3MB in the beginning and 83.9MB in the end (delta: 369.9kB). 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: 8]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 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=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:23:00,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:23:03,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:23:04,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:23:04,117 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:23:04,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:23:04,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:23:04,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:23:04,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:23:04,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:23:04,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:23:04,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:23:04,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:23:04,164 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:23:04,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:23:04,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:23:04,166 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:23:04,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:23:04,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:23:04,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:23:04,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:23:04,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:23:04,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:23:04,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:23:04,170 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:23:04,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:23:04,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:23:04,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:23:04,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:23:04,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:23:04,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:23:04,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:04,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:23:04,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:23:04,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:23:04,175 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:23:04,175 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:23:04,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:23:04,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:23:04,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:23:04,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:23:04,177 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:23:04,177 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:23:04,177 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2023-11-06 22:23:04,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:23:04,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:23:04,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:23:04,649 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:23:04,650 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:23:04,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/float-benchs/nan_float.c [2023-11-06 22:23:08,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:23:08,494 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:23:08,495 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c [2023-11-06 22:23:08,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/462e8ecf1/a2911945f05344708995afd6849947ab/FLAGf84188e01 [2023-11-06 22:23:08,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/data/462e8ecf1/a2911945f05344708995afd6849947ab [2023-11-06 22:23:08,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:23:08,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:23:08,528 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:08,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:23:08,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:23:08,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de5cbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08, skipping insertion in model container [2023-11-06 22:23:08,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:23:08,784 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-06 22:23:08,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:08,810 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:23:08,823 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2023-11-06 22:23:08,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:23:08,843 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:23:08,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08 WrapperNode [2023-11-06 22:23:08,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:23:08,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:08,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:23:08,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:23:08,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,884 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2023-11-06 22:23:08,885 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:23:08,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:23:08,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:23:08,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:23:08,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:23:08,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:23:08,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:23:08,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:23:08,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (1/1) ... [2023-11-06 22:23:08,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:23:08,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:23:08,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:23:09,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:23:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:23:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:23:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:23:09,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:23:09,147 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:23:09,149 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:23:09,259 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:23:09,265 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:23:09,266 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:23:09,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:09 BoogieIcfgContainer [2023-11-06 22:23:09,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:23:09,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:23:09,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:23:09,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:23:09,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:23:08" (1/3) ... [2023-11-06 22:23:09,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ad3ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:09, skipping insertion in model container [2023-11-06 22:23:09,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:23:08" (2/3) ... [2023-11-06 22:23:09,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27ad3ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:23:09, skipping insertion in model container [2023-11-06 22:23:09,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:09" (3/3) ... [2023-11-06 22:23:09,281 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float.c [2023-11-06 22:23:09,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:23:09,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:23:09,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:23:09,376 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@352e065d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:23:09,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:23:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:23:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:23:09,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:23:09,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:23:09,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:23:09,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:23:09,399 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2023-11-06 22:23:09,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:23:09,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208842251] [2023-11-06 22:23:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:23:09,413 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 [2023-11-06 22:23:09,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:23:09,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:23:09,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:09,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:23:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:23:09,551 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:23:09,553 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:23:09,555 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:23:09,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:09,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:23:09,775 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-06 22:23:09,780 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:23:09,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:23:09 BoogieIcfgContainer [2023-11-06 22:23:09,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:23:09,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:23:09,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:23:09,798 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:23:09,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:23:09" (3/4) ... [2023-11-06 22:23:09,799 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:23:09,834 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:23:09,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:23:09,836 INFO L158 Benchmark]: Toolchain (without parser) took 1309.29ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 49.6MB in the beginning and 55.0MB in the end (delta: -5.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,836 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:09,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.13ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 38.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.16ms. Allocated memory is still 73.4MB. Free memory was 38.9MB in the beginning and 37.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:23:09,838 INFO L158 Benchmark]: Boogie Preprocessor took 32.19ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 36.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,839 INFO L158 Benchmark]: RCFGBuilder took 350.03ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 36.3MB in the beginning and 68.5MB in the end (delta: -32.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,839 INFO L158 Benchmark]: TraceAbstraction took 524.11ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 56.4MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,840 INFO L158 Benchmark]: Witness Printer took 37.13ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 55.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:23:09,843 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 73.4MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.13ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 38.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.16ms. Allocated memory is still 73.4MB. Free memory was 38.9MB in the beginning and 37.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.19ms. Allocated memory is still 73.4MB. Free memory was 37.6MB in the beginning and 36.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.03ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 36.3MB in the beginning and 68.5MB in the end (delta: -32.2MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * TraceAbstraction took 524.11ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 56.4MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 37.13ms. Allocated memory is still 96.5MB. Free memory was 56.4MB in the beginning and 55.0MB in the end (delta: 1.3MB). 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: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 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=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:23:09,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0937943b-fb46-4300-8d87-40f950bcd01c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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