./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc --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 64bit --witnessprinter.graph.data.programhash 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:59:54,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:59:54,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:59:54,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:59:54,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:59:54,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:59:54,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:59:54,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:59:54,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:59:54,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:59:54,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:59:54,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:59:54,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:59:54,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:59:54,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:59:54,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:59:54,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:59:54,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:59:54,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:59:54,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:59:54,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:59:54,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:59:54,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:59:54,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:59:54,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:59:54,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:59:54,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:59:54,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:59:54,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:59:54,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:59:54,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:59:54,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:59:54,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:59:54,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:59:54,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:59:54,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:59:54,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:59:54,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:59:54,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:59:54,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:59:54,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:59:54,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:59:54,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:59:54,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:59:54,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:59:54,486 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:59:54,487 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:59:54,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:59:54,487 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:59:54,488 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:59:54,488 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:59:54,488 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:59:54,488 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:59:54,488 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:59:54,489 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:59:54,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:59:54,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:59:54,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:59:54,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:59:54,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:59:54,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:59:54,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:59:54,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:59:54,491 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:59:54,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:59:54,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:59:54,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:59:54,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:59:54,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:59:54,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:59:54,493 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:59:54,493 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_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 002ffbd09e057f56028aff15fe1fea8f5a73210903f4d60a4a822560ee8c3510 [2022-11-02 20:59:54,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:59:54,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:59:54,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:59:54,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:59:54,838 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:59:54,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-02 20:59:54,915 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/data/fe16390e7/abc89cd23222409abfda53de45125ea6/FLAG3bb014cf9 [2022-11-02 20:59:55,397 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:59:55,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-02 20:59:55,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/data/fe16390e7/abc89cd23222409abfda53de45125ea6/FLAG3bb014cf9 [2022-11-02 20:59:55,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/data/fe16390e7/abc89cd23222409abfda53de45125ea6 [2022-11-02 20:59:55,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:59:55,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:59:55,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:55,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:59:55,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:59:55,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:55" (1/1) ... [2022-11-02 20:59:55,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bdca46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:55, skipping insertion in model container [2022-11-02 20:59:55,792 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:59:55" (1/1) ... [2022-11-02 20:59:55,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:59:55,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:59:55,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:55,989 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:59:56,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:59:56,017 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:59:56,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56 WrapperNode [2022-11-02 20:59:56,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:59:56,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:56,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:59:56,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:59:56,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,054 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2022-11-02 20:59:56,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:59:56,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:59:56,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:59:56,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:59:56,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:59:56,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:59:56,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:59:56,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:59:56,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (1/1) ... [2022-11-02 20:59:56,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:56,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:56,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:56,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:59:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:59:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:59:56,223 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:59:56,226 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:59:56,330 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:59:56,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:59:56,340 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:59:56,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:56 BoogieIcfgContainer [2022-11-02 20:59:56,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:59:56,344 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:59:56,345 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:59:56,350 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:59:56,350 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:59:56,351 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:59:55" (1/3) ... [2022-11-02 20:59:56,352 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79a1b4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:59:56, skipping insertion in model container [2022-11-02 20:59:56,352 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:59:56,352 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:59:56" (2/3) ... [2022-11-02 20:59:56,353 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@79a1b4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:59:56, skipping insertion in model container [2022-11-02 20:59:56,353 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:59:56,353 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:56" (3/3) ... [2022-11-02 20:59:56,356 INFO L332 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c [2022-11-02 20:59:56,439 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:59:56,440 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:59:56,440 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:59:56,440 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:59:56,440 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:59:56,440 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:59:56,441 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:59:56,441 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:59:56,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-02 20:59:56,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:59:56,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:59:56,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:59:56,484 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:59:56,484 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:59:56,485 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:59:56,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-02 20:59:56,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-02 20:59:56,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:59:56,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:59:56,488 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:59:56,488 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-02 20:59:56,497 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := 0;main_~y~0#1 := 100;main_~z~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L15-2true [2022-11-02 20:59:56,498 INFO L750 eck$LassoCheckResult]: Loop: 7#L15-2true assume !!(main_~x~0#1 < 40); 5#L15true assume !(0 == main_~z~0#1);main_~x~0#1 := 2 + main_~x~0#1; 7#L15-2true [2022-11-02 20:59:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:59:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:56,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763581502] [2022-11-02 20:59:56,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:56,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:59:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:59:56,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:56,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-02 20:59:56,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:56,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948158702] [2022-11-02 20:59:56,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:56,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:59:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:59:56,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:56,700 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-02 20:59:56,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:59:56,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874135720] [2022-11-02 20:59:56,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:59:56,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:59:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:59:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:59:56,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:59:56,839 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:59:56,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:59:56,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:59:56,840 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:59:56,840 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:59:56,840 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:56,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:59:56,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:59:56,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2022-11-02 20:59:56,841 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:59:56,841 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:59:56,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:59:56,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:59:56,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:59:56,971 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:59:56,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:56,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:56,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:56,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:59:56,979 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:59:56,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:59:57,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:59:57,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:57,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:57,038 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:57,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:59:57,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:59:57,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:59:57,103 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:59:57,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:59:57,108 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:59:57,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:59:57,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:59:57,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:59:57,108 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:59:57,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:57,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:59:57,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:59:57,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-easy1.c_Iteration1_Loop [2022-11-02 20:59:57,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:59:57,109 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:59:57,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:59:57,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-02 20:59:57,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:59:57,164 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:59:57,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:57,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:57,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:57,174 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-02 20:59:57,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:59:57,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:59:57,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:59:57,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:59:57,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:59:57,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:59:57,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:59:57,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:59:57,209 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:59:57,217 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:59:57,218 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:59:57,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:59:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:59:57,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:59:57,241 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:59:57,241 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:59:57,242 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:59:57,242 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 40 Supporting invariants [] [2022-11-02 20:59:57,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:59:57,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:59:57,278 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:59:57,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:59:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:57,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:59:57,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:59:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:59:57,413 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:59:57,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:59:57,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:59:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:59:57,503 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-02 20:59:57,505 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-02 20:59:57,564 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 18 states and 23 transitions. Complement of second has 7 states. [2022-11-02 20:59:57,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-02 20:59:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-02 20:59:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-02 20:59:57,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-02 20:59:57,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:59:57,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-02 20:59:57,576 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:59:57,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2022-11-02 20:59:57,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:59:57,578 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2022-11-02 20:59:57,581 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:59:57,584 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2022-11-02 20:59:57,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:59:57,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:59:57,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:59:57,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:59:57,586 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:59:57,586 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:59:57,587 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:59:57,587 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:59:57,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:59:57,587 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:59:57,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:59:57,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:59:57 BoogieIcfgContainer [2022-11-02 20:59:57,597 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:59:57,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:59:57,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:59:57,598 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:59:57,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:59:56" (3/4) ... [2022-11-02 20:59:57,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:59:57,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:59:57,602 INFO L158 Benchmark]: Toolchain (without parser) took 1819.16ms. Allocated memory is still 109.1MB. Free memory was 73.7MB in the beginning and 79.6MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:57,603 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:57,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.62ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 87.5MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:59:57,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.01ms. Allocated memory is still 109.1MB. Free memory was 87.5MB in the beginning and 86.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:57,607 INFO L158 Benchmark]: Boogie Preprocessor took 19.70ms. Allocated memory is still 109.1MB. Free memory was 86.3MB in the beginning and 85.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:59:57,611 INFO L158 Benchmark]: RCFGBuilder took 265.73ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 77.1MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:59:57,612 INFO L158 Benchmark]: BuchiAutomizer took 1252.72ms. Allocated memory is still 109.1MB. Free memory was 77.1MB in the beginning and 80.0MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:57,612 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.6MB in the end (delta: 451.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:59:57,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 109.1MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.62ms. Allocated memory is still 109.1MB. Free memory was 73.5MB in the beginning and 87.5MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.01ms. Allocated memory is still 109.1MB. Free memory was 87.5MB in the beginning and 86.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.70ms. Allocated memory is still 109.1MB. Free memory was 86.3MB in the beginning and 85.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.73ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 77.1MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1252.72ms. Allocated memory is still 109.1MB. Free memory was 77.1MB in the beginning and 80.0MB in the end (delta: -2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 79.6MB in the end (delta: 451.1kB). 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 40 + -1 * x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 77ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-02 20:59:57,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3eebdc36-b996-498d-8a84-eb26839293f5/bin/uautomizer-Dbtcem3rbc/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