./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:09:51,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:09:51,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:09:51,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:09:51,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:09:51,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:09:51,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:09:51,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:09:51,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:09:51,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:09:51,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:09:51,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:09:51,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:09:51,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:09:51,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:09:51,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:09:51,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:09:51,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:09:51,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:09:51,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:09:51,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:09:51,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:09:51,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:09:51,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:09:51,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:09:51,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:09:51,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:09:51,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:09:51,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:09:51,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:09:51,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:09:51,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:09:51,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:09:51,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:09:51,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:09:51,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:09:51,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:09:51,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:09:51,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:09:51,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:09:51,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:09:51,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:09:51,435 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:09:51,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:09:51,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:09:51,437 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:09:51,437 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:09:51,438 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:09:51,438 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:09:51,438 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:09:51,438 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:09:51,438 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:09:51,440 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:09:51,440 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:09:51,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:09:51,441 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:09:51,441 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:09:51,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:09:51,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:09:51,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:09:51,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:09:51,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:09:51,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:09:51,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:09:51,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:09:51,444 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:09:51,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:09:51,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:09:51,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:09:51,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:09:51,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:09:51,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:09:51,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:51,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:09:51,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:09:51,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:09:51,448 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:09:51,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:09:51,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:09:51,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:09:51,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:09:51,450 INFO L138 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_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-07 01:09:51,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:09:51,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:09:51,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:09:51,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:09:51,715 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:09:51,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-07 01:09:51,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/74e406f82/cb5860a92af944d5867c8f4b2a643e85/FLAGe45f3b390 [2021-11-07 01:09:52,265 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:09:52,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-07 01:09:52,272 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/74e406f82/cb5860a92af944d5867c8f4b2a643e85/FLAGe45f3b390 [2021-11-07 01:09:52,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/74e406f82/cb5860a92af944d5867c8f4b2a643e85 [2021-11-07 01:09:52,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:09:52,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:09:52,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:52,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:09:52,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:09:52,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194bd8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52, skipping insertion in model container [2021-11-07 01:09:52,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:09:52,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:09:52,904 WARN L228 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_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-07 01:09:52,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:09:52,922 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:09:52,933 WARN L228 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_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-07 01:09:52,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:09:52,948 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:09:52,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52 WrapperNode [2021-11-07 01:09:52,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:52,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:09:52,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:09:52,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:09:52,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:09:52,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:09:52,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:09:52,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:09:52,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:52,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:09:53,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:09:53,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:09:53,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:09:53,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (1/1) ... [2021-11-07 01:09:53,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:53,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:09:53,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:09:53,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:09:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:09:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:09:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:09:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:09:53,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:09:53,275 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:09:53,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:53 BoogieIcfgContainer [2021-11-07 01:09:53,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:09:53,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:09:53,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:09:53,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:09:53,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:09:52" (1/3) ... [2021-11-07 01:09:53,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e52cb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:53, skipping insertion in model container [2021-11-07 01:09:53,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:52" (2/3) ... [2021-11-07 01:09:53,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e52cb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:53, skipping insertion in model container [2021-11-07 01:09:53,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:53" (3/3) ... [2021-11-07 01:09:53,294 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-07 01:09:53,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:09:53,300 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:09:53,342 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:09:53,348 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:09:53,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:09:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:09:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 01:09:53,366 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:53,367 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 01:09:53,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:09:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:53,373 INFO L85 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2021-11-07 01:09:53,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:09:53,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435276943] [2021-11-07 01:09:53,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:53,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:09:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:09:53,481 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:09:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:09:53,518 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 01:09:53,520 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:09:53,521 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:09:53,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 01:09:53,526 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 01:09:53,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:09:53,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:09:53 BoogieIcfgContainer [2021-11-07 01:09:53,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:09:53,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:09:53,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:09:53,545 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:09:53,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:53" (3/4) ... [2021-11-07 01:09:53,548 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 01:09:53,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:09:53,551 INFO L168 Benchmark]: Toolchain (without parser) took 866.05 ms. Allocated memory is still 117.4 MB. Free memory was 87.9 MB in the beginning and 67.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:53,551 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.6 MB in the beginning and 70.6 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:53,552 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.80 ms. Allocated memory is still 117.4 MB. Free memory was 87.6 MB in the beginning and 92.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:53,553 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.95 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:53,553 INFO L168 Benchmark]: Boogie Preprocessor took 17.87 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 90.5 MB in the end (delta: 907.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:53,554 INFO L168 Benchmark]: RCFGBuilder took 269.55 ms. Allocated memory is still 117.4 MB. Free memory was 90.5 MB in the beginning and 81.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:53,555 INFO L168 Benchmark]: TraceAbstraction took 264.18 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 68.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:53,555 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 117.4 MB. Free memory was 68.0 MB in the beginning and 67.7 MB in the end (delta: 303.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:53,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.6 MB in the beginning and 70.6 MB in the end (delta: 59.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.80 ms. Allocated memory is still 117.4 MB. Free memory was 87.6 MB in the beginning and 92.9 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.95 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.87 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 90.5 MB in the end (delta: 907.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.55 ms. Allocated memory is still 117.4 MB. Free memory was 90.5 MB in the beginning and 81.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 264.18 ms. Allocated memory is still 117.4 MB. Free memory was 80.6 MB in the beginning and 68.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.87 ms. Allocated memory is still 117.4 MB. Free memory was 68.0 MB in the beginning and 67.7 MB in the end (delta: 303.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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 call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 01:09:53,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:09:56,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:09:56,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:09:56,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:09:56,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:09:56,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:09:56,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:09:56,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:09:56,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:09:56,107 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:09:56,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:09:56,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:09:56,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:09:56,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:09:56,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:09:56,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:09:56,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:09:56,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:09:56,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:09:56,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:09:56,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:09:56,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:09:56,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:09:56,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:09:56,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:09:56,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:09:56,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:09:56,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:09:56,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:09:56,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:09:56,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:09:56,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:09:56,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:09:56,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:09:56,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:09:56,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:09:56,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:09:56,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:09:56,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:09:56,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:09:56,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:09:56,160 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:09:56,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:09:56,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:09:56,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:09:56,213 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:09:56,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:09:56,214 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:09:56,214 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:09:56,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:09:56,214 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:09:56,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:09:56,217 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:09:56,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:09:56,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:09:56,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:09:56,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:09:56,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:09:56,219 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:09:56,219 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:09:56,219 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:09:56,219 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:09:56,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:09:56,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:09:56,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:09:56,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:09:56,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:09:56,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:09:56,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:56,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:09:56,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:09:56,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:09:56,222 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:09:56,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:09:56,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:09:56,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:09:56,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:09:56,223 INFO L138 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_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-07 01:09:56,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:09:56,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:09:56,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:09:56,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:09:56,668 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:09:56,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-07 01:09:56,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/93b9731f3/5ffc0e43baf648f3b0c30d4d60de4a8d/FLAGe675b3af9 [2021-11-07 01:09:57,238 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:09:57,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-07 01:09:57,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/93b9731f3/5ffc0e43baf648f3b0c30d4d60de4a8d/FLAGe675b3af9 [2021-11-07 01:09:57,619 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/data/93b9731f3/5ffc0e43baf648f3b0c30d4d60de4a8d [2021-11-07 01:09:57,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:09:57,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:09:57,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:57,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:09:57,628 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:09:57,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d19f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57, skipping insertion in model container [2021-11-07 01:09:57,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:09:57,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:09:57,805 WARN L228 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_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-07 01:09:57,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:09:57,826 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:09:57,838 WARN L228 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_a8718e11-8e2d-40fd-907e-8e28e888a883/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-07 01:09:57,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:09:57,854 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:09:57,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57 WrapperNode [2021-11-07 01:09:57,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:09:57,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:09:57,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:09:57,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:09:57,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:09:57,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:09:57,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:09:57,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:09:57,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:09:57,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:09:57,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:09:57,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:09:57,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (1/1) ... [2021-11-07 01:09:57,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:09:57,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:09:57,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:09:57,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:09:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:09:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:09:58,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:09:58,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:09:58,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:09:58,255 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 01:09:58,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:58 BoogieIcfgContainer [2021-11-07 01:09:58,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:09:58,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:09:58,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:09:58,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:09:58,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:09:57" (1/3) ... [2021-11-07 01:09:58,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e16177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:58, skipping insertion in model container [2021-11-07 01:09:58,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:09:57" (2/3) ... [2021-11-07 01:09:58,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e16177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:09:58, skipping insertion in model container [2021-11-07 01:09:58,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:58" (3/3) ... [2021-11-07 01:09:58,278 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-07 01:09:58,283 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:09:58,283 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:09:58,346 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:09:58,353 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:09:58,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:09:58,365 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) [2021-11-07 01:09:58,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 01:09:58,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:09:58,369 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 01:09:58,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:09:58,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:09:58,375 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-07 01:09:58,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:09:58,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051994441] [2021-11-07 01:09:58,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:09:58,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:09:58,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:09:58,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:09:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:09:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:09:58,500 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:09:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:09:58,545 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:09:58,547 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:09:58,548 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:09:58,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:09:58,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:09:58,766 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 01:09:58,769 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:09:58,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:09:58 BoogieIcfgContainer [2021-11-07 01:09:58,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:09:58,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:09:58,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:09:58,796 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:09:58,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:09:58" (3/4) ... [2021-11-07 01:09:58,798 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:09:58,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:09:58,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:09:58,845 INFO L168 Benchmark]: Toolchain (without parser) took 1215.35 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 37.4 MB in the beginning and 56.7 MB in the end (delta: -19.4 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,846 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 40.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:58,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.26 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 27.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.56 ms. Allocated memory is still 58.7 MB. Free memory was 27.4 MB in the beginning and 41.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,849 INFO L168 Benchmark]: Boogie Preprocessor took 37.02 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,850 INFO L168 Benchmark]: RCFGBuilder took 313.46 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 31.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,852 INFO L168 Benchmark]: TraceAbstraction took 535.36 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 58.4 MB in the end (delta: -27.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:09:58,853 INFO L168 Benchmark]: Witness Printer took 42.75 ms. Allocated memory is still 81.8 MB. Free memory was 58.4 MB in the beginning and 56.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:09:58,859 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 40.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.26 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 27.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.56 ms. Allocated memory is still 58.7 MB. Free memory was 27.4 MB in the beginning and 41.5 MB in the end (delta: -14.1 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.02 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 313.46 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 31.5 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 535.36 ms. Allocated memory was 58.7 MB in the beginning and 81.8 MB in the end (delta: 23.1 MB). Free memory was 31.2 MB in the beginning and 58.4 MB in the end (delta: -27.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.75 ms. Allocated memory is still 81.8 MB. Free memory was 58.4 MB in the beginning and 56.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L8] reach_error() - 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, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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! [2021-11-07 01:09:58,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8718e11-8e2d-40fd-907e-8e28e888a883/bin/utaipan-UUZaoUuFF8/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