./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:34:04,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:34:04,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:34:04,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:34:04,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:34:04,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:34:04,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:34:04,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:34:04,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:34:04,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:34:04,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:34:04,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:34:04,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:34:04,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:34:04,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:34:04,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:34:04,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:34:04,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:34:04,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:34:04,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:34:04,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:34:04,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:34:04,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:34:04,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:34:04,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:34:04,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:34:04,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:34:04,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:34:04,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:34:04,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:34:04,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:34:04,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:34:04,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:34:04,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:34:04,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:34:04,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:34:04,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:34:04,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:34:04,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:34:04,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:34:04,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:34:04,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-19 05:34:04,478 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:34:04,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:34:04,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:34:04,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:34:04,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:34:04,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:34:04,482 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:34:04,483 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 05:34:04,483 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 05:34:04,483 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 05:34:04,484 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 05:34:04,484 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 05:34:04,485 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 05:34:04,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:34:04,485 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:34:04,485 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 05:34:04,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:34:04,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:34:04,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:34:04,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 05:34:04,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 05:34:04,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 05:34:04,487 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:34:04,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:34:04,487 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 05:34:04,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:34:04,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 05:34:04,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:34:04,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:34:04,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:34:04,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:34:04,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:34:04,492 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 05:34:04,492 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebbeb933faa53c0420039d774ec4b6190cacf1becebc5ed29363e09aaa5dc31e [2021-11-19 05:34:04,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:34:04,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:34:04,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:34:04,794 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:34:04,795 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:34:04,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-11-19 05:34:04,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/data/7a04bbe80/bc494e551e2a401ab3a90a31324eb006/FLAG502238826 [2021-11-19 05:34:05,317 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:34:05,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i [2021-11-19 05:34:05,325 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/data/7a04bbe80/bc494e551e2a401ab3a90a31324eb006/FLAG502238826 [2021-11-19 05:34:05,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/data/7a04bbe80/bc494e551e2a401ab3a90a31324eb006 [2021-11-19 05:34:05,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:34:05,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:34:05,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:34:05,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:34:05,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:34:05,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:05,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50826ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05, skipping insertion in model container [2021-11-19 05:34:05,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:05,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:34:05,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:34:05,920 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-11-19 05:34:05,931 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-11-19 05:34:05,938 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-11-19 05:34:05,940 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:34:05,950 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:34:05,967 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1032,1045] [2021-11-19 05:34:05,973 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1306,1319] [2021-11-19 05:34:05,977 WARN L230 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_f992609e-5bb1-48de-aad3-7cb62d98842c/sv-benchmarks/c/floats-cbmc-regression/float20.i[1464,1477] [2021-11-19 05:34:05,979 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:34:05,993 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:34:05,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05 WrapperNode [2021-11-19 05:34:05,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:34:05,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:34:05,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:34:05,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:34:06,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,027 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2021-11-19 05:34:06,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:34:06,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:34:06,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:34:06,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:34:06,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:34:06,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:34:06,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:34:06,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:34:06,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (1/1) ... [2021-11-19 05:34:06,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 05:34:06,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:34:06,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 05:34:06,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 05:34:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:34:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:34:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:34:06,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:34:06,187 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:34:06,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:34:06,282 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:34:06,289 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:34:06,289 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:34:06,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:34:06 BoogieIcfgContainer [2021-11-19 05:34:06,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:34:06,293 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 05:34:06,293 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 05:34:06,303 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 05:34:06,304 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:34:06,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 05:34:05" (1/3) ... [2021-11-19 05:34:06,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52ff4e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:34:06, skipping insertion in model container [2021-11-19 05:34:06,317 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:34:06,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:34:05" (2/3) ... [2021-11-19 05:34:06,318 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52ff4e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 05:34:06, skipping insertion in model container [2021-11-19 05:34:06,318 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 05:34:06,318 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:34:06" (3/3) ... [2021-11-19 05:34:06,319 INFO L388 chiAutomizerObserver]: Analyzing ICFG float20.i [2021-11-19 05:34:06,395 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 05:34:06,396 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 05:34:06,396 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 05:34:06,396 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 05:34:06,396 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 05:34:06,396 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 05:34:06,396 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 05:34:06,397 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 05:34:06,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-11-19 05:34:06,432 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 05:34:06,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 05:34:06,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 05:34:06 BoogieIcfgContainer [2021-11-19 05:34:06,437 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 05:34:06,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:34:06,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:34:06,438 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:34:06,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:34:06" (3/4) ... [2021-11-19 05:34:06,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:34:06,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:34:06,444 INFO L158 Benchmark]: Toolchain (without parser) took 727.69ms. Allocated memory is still 98.6MB. Free memory was 65.9MB in the beginning and 55.6MB in the end (delta: 10.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,451 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:34:06,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.08ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 72.3MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,454 INFO L158 Benchmark]: Boogie Preprocessor took 19.96ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 69.8MB in the end (delta: 763.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,455 INFO L158 Benchmark]: RCFGBuilder took 242.92ms. Allocated memory is still 98.6MB. Free memory was 69.5MB in the beginning and 61.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,456 INFO L158 Benchmark]: BuchiAutomizer took 144.54ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 55.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 05:34:06,457 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 98.6MB. Free memory was 55.9MB in the beginning and 55.6MB in the end (delta: 326.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:34:06,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 98.6MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 41.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.08ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 72.3MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 70.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.96ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 69.8MB in the end (delta: 763.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.92ms. Allocated memory is still 98.6MB. Free memory was 69.5MB in the beginning and 61.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 144.54ms. Allocated memory is still 98.6MB. Free memory was 61.1MB in the beginning and 55.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 98.6MB. Free memory was 55.9MB in the beginning and 55.6MB in the end (delta: 326.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 05:34:06,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f992609e-5bb1-48de-aad3-7cb62d98842c/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE