./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:09,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:10,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:24:10,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:10,009 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:10,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:10,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:10,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:10,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:10,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:10,038 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:10,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:10,039 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:10,039 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:10,040 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:10,040 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:10,041 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:10,041 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:10,042 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:10,042 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:10,042 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:10,043 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:10,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:10,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:10,045 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:10,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:10,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:10,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:10,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:10,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:10,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:10,048 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:10,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:10,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:10,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:10,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:10,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:10,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:10,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:10,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:10,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:10,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:10,053 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:10,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:10,054 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:10,054 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:10,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:10,055 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2024-11-02 12:24:10,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:10,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:10,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:10,449 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:10,450 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:10,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-benchs/nan_double_range.c Unable to find full path for "g++" [2024-11-02 12:24:12,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:13,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:13,150 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c [2024-11-02 12:24:13,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/3166e9059/24d96c03cea447399d6e9fe6038cb178/FLAGa8c9ae469 [2024-11-02 12:24:13,453 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/3166e9059/24d96c03cea447399d6e9fe6038cb178 [2024-11-02 12:24:13,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:13,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:13,460 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:13,461 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:13,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:13,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@459142a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13, skipping insertion in model container [2024-11-02 12:24:13,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:13,807 WARN L251 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_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2024-11-02 12:24:13,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:13,837 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:13,853 WARN L251 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_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2024-11-02 12:24:13,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:13,876 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:13,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13 WrapperNode [2024-11-02 12:24:13,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:13,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:13,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:13,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:13,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,922 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2024-11-02 12:24:13,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:13,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:13,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:13,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:13,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:13,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:13,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:13,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:13,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (1/1) ... [2024-11-02 12:24:13,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:13,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:13,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:13,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:14,106 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:14,109 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:14,232 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:14,233 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:14,270 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:14,270 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:24:14,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:14 BoogieIcfgContainer [2024-11-02 12:24:14,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:14,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:14,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:14,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:14,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:13" (1/3) ... [2024-11-02 12:24:14,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9efa32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:14, skipping insertion in model container [2024-11-02 12:24:14,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:13" (2/3) ... [2024-11-02 12:24:14,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9efa32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:14, skipping insertion in model container [2024-11-02 12:24:14,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:14" (3/3) ... [2024-11-02 12:24:14,285 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2024-11-02 12:24:14,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:14,311 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:14,418 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:14,428 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=FINITE_AUTOMATA, 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;@6e124edb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:14,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:24:14,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:14,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:24:14,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:14,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:14,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1643568, now seen corresponding path program 1 times [2024-11-02 12:24:14,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:14,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512133926] [2024-11-02 12:24:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:14,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:14,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:24:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:14,647 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:24:14,650 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:24:14,651 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:24:14,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:14,661 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:24:14,677 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:24:14,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:24:14 BoogieIcfgContainer [2024-11-02 12:24:14,682 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:24:14,683 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:24:14,683 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:24:14,683 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:24:14,684 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:14" (3/4) ... [2024-11-02 12:24:14,688 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:24:14,689 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:24:14,691 INFO L158 Benchmark]: Toolchain (without parser) took 1232.71ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 98.7MB in the end (delta: 31.3MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:14,692 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 121.6MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:14,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.98ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:24:14,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.09ms. Allocated memory is still 163.6MB. Free memory was 126.0MB in the beginning and 124.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:14,694 INFO L158 Benchmark]: Boogie Preprocessor took 22.63ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 123.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:14,695 INFO L158 Benchmark]: RCFGBuilder took 323.69ms. Allocated memory is still 163.6MB. Free memory was 123.9MB in the beginning and 113.4MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:24:14,696 INFO L158 Benchmark]: TraceAbstraction took 406.78ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 99.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:24:14,697 INFO L158 Benchmark]: Witness Printer took 7.01ms. Allocated memory is still 163.6MB. Free memory was 99.8MB in the beginning and 98.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:14,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 121.6MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.98ms. Allocated memory is still 163.6MB. Free memory was 130.1MB in the beginning and 127.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.09ms. Allocated memory is still 163.6MB. Free memory was 126.0MB in the beginning and 124.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.63ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 123.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.69ms. Allocated memory is still 163.6MB. Free memory was 123.9MB in the beginning and 113.4MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 406.78ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 99.8MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 7.01ms. Allocated memory is still 163.6MB. Free memory was 99.8MB in the beginning and 98.7MB in the end (delta: 1.0MB). 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 someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L16] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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 [2024-11-02 12:24:14,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:17,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:17,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:24:17,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:17,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:18,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:18,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:18,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:18,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:18,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:18,026 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:18,027 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:18,028 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:18,029 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:18,033 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:18,033 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:18,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:18,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:18,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:18,035 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:18,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:18,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:18,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:18,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:18,039 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:24:18,039 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:24:18,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:18,040 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:24:18,040 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:18,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:18,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:18,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:18,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:24:18,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:18,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:18,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:18,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:18,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:18,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:18,044 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:24:18,044 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:18,046 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:18,047 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:18,047 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:18,047 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797690fe71841b0a44bd1fd32f2345404ce21c41a044ac3f72f0df27db5c2176 [2024-11-02 12:24:18,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:18,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:18,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:18,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:18,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:18,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-benchs/nan_double_range.c Unable to find full path for "g++" [2024-11-02 12:24:21,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:21,550 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:21,550 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c [2024-11-02 12:24:21,560 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/a3ae7a1db/b3b4a8361a834e7ea9a2293328c7df5d/FLAGbfae0eca4 [2024-11-02 12:24:21,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/data/a3ae7a1db/b3b4a8361a834e7ea9a2293328c7df5d [2024-11-02 12:24:21,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:21,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:21,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:21,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:21,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:21,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:21,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e080f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21, skipping insertion in model container [2024-11-02 12:24:21,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:21,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:21,869 WARN L251 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_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2024-11-02 12:24:21,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:21,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:21,924 WARN L251 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_14b24988-f723-48aa-943d-80171727a956/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2024-11-02 12:24:21,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:21,950 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:21,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21 WrapperNode [2024-11-02 12:24:21,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:21,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:21,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:21,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:21,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:21,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:21,993 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2024-11-02 12:24:21,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:21,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:21,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:21,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:22,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:22,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:22,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:22,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:22,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (1/1) ... [2024-11-02 12:24:22,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:22,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:22,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:22,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:22,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:24:22,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:22,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:22,227 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:22,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:22,447 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:22,449 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:22,472 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:22,472 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:24:22,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:22 BoogieIcfgContainer [2024-11-02 12:24:22,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:22,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:22,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:22,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:22,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:21" (1/3) ... [2024-11-02 12:24:22,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2707b2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:22, skipping insertion in model container [2024-11-02 12:24:22,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:21" (2/3) ... [2024-11-02 12:24:22,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2707b2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:22, skipping insertion in model container [2024-11-02 12:24:22,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:22" (3/3) ... [2024-11-02 12:24:22,488 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2024-11-02 12:24:22,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:22,516 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:22,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:22,626 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=FINITE_AUTOMATA, 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;@3bb66df2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:22,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:22,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:24:22,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:22,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:24:22,645 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:22,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:22,656 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2024-11-02 12:24:22,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:22,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163541519] [2024-11-02 12:24:22,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:22,675 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:24:22,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:22,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-02 12:24:22,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-02 12:24:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:22,804 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 12:24:22,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:23,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:24:23,039 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:24:23,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163541519] [2024-11-02 12:24:23,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163541519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:23,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:23,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517426964] [2024-11-02 12:24:23,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:23,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:23,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:24:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:23,086 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:23,114 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-11-02 12:24:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:23,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-02 12:24:23,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:23,124 INFO L225 Difference]: With dead ends: 16 [2024-11-02 12:24:23,125 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 12:24:23,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:23,132 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:23,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:24:23,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 12:24:23,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 12:24:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 12:24:23,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-02 12:24:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:23,175 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 12:24:23,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:24:23,176 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 12:24:23,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 12:24:23,179 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:24:23,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-02 12:24:23,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-02 12:24:23,386 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:24:23,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 12:24:23,399 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:24:23,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:24:23 BoogieIcfgContainer [2024-11-02 12:24:23,410 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:24:23,411 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:24:23,411 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:24:23,412 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:24:23,412 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:22" (3/4) ... [2024-11-02 12:24:23,417 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:24:23,427 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-02 12:24:23,429 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-02 12:24:23,429 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:24:23,429 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 12:24:23,591 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:24:23,592 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:24:23,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:24:23,593 INFO L158 Benchmark]: Toolchain (without parser) took 1999.31ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 35.0MB in the beginning and 56.9MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:23,594 INFO L158 Benchmark]: CDTParser took 2.54ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:23,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.65ms. Allocated memory is still 65.0MB. Free memory was 34.9MB in the beginning and 37.9MB in the end (delta: -3.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-02 12:24:23,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.41ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 36.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:24:23,596 INFO L158 Benchmark]: Boogie Preprocessor took 39.36ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 35.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:23,597 INFO L158 Benchmark]: RCFGBuilder took 440.25ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 35.1MB in the beginning and 57.9MB in the end (delta: -22.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-11-02 12:24:23,597 INFO L158 Benchmark]: TraceAbstraction took 933.10ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 56.2MB in the end (delta: 1.0MB). Peak memory consumption was 744.4kB. Max. memory is 16.1GB. [2024-11-02 12:24:23,598 INFO L158 Benchmark]: Witness Printer took 181.02ms. Allocated memory is still 81.8MB. Free memory was 56.2MB in the beginning and 56.9MB in the end (delta: -650.3kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:24:23,601 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.54ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.65ms. Allocated memory is still 65.0MB. Free memory was 34.9MB in the beginning and 37.9MB in the end (delta: -3.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.41ms. Allocated memory is still 65.0MB. Free memory was 37.9MB in the beginning and 36.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.36ms. Allocated memory is still 65.0MB. Free memory was 36.4MB in the beginning and 35.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 440.25ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 35.1MB in the beginning and 57.9MB in the end (delta: -22.8MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 933.10ms. Allocated memory is still 81.8MB. Free memory was 57.2MB in the beginning and 56.2MB in the end (delta: 1.0MB). Peak memory consumption was 744.4kB. Max. memory is 16.1GB. * Witness Printer took 181.02ms. Allocated memory is still 81.8MB. Free memory was 56.2MB in the beginning and 56.9MB in the end (delta: -650.3kB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 8]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 1 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-02 12:24:23,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14b24988-f723-48aa-943d-80171727a956/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE