./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.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_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/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_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/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_c2de2c79-50c1-4393-81e9-66834ff4da3b/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 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 --- 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 20:15:40,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:15:40,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:15:40,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:15:40,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:15:40,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:15:40,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:15:40,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:15:40,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:15:40,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:15:40,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:15:40,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:15:40,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:15:40,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:15:40,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:15:40,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:15:40,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:15:40,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:15:40,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:15:40,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:15:40,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:15:40,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:15:40,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:15:40,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:15:40,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:15:40,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:15:40,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:15:40,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:15:40,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:15:40,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:15:40,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:15:40,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:15:40,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:15:40,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:15:40,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:15:40,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:15:40,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:15:40,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:15:40,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:15:40,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:15:40,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:15:40,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-02 20:15:40,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:15:40,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:15:40,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:15:40,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:15:40,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:15:40,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:15:40,582 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:15:40,583 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:15:40,583 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:15:40,583 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:15:40,584 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:15:40,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:15:40,585 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:15:40,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:15:40,586 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:15:40,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:15:40,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:15:40,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:15:40,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:15:40,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:15:40,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:15:40,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:15:40,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:15:40,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:15:40,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:15:40,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:15:40,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:15:40,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:15:40,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:15:40,593 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_c2de2c79-50c1-4393-81e9-66834ff4da3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2022-11-02 20:15:41,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:15:41,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:15:41,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:15:41,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:15:41,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:15:41,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2022-11-02 20:15:41,200 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/data/e9418727a/f8381b2861704d9eabead9f7edb7ca8f/FLAGbf55893fe [2022-11-02 20:15:41,759 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:15:41,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/sv-benchmarks/c/termination-restricted-15/Sequence.c [2022-11-02 20:15:41,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/data/e9418727a/f8381b2861704d9eabead9f7edb7ca8f/FLAGbf55893fe [2022-11-02 20:15:42,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/data/e9418727a/f8381b2861704d9eabead9f7edb7ca8f [2022-11-02 20:15:42,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:15:42,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:15:42,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:42,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:15:42,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:15:42,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a40501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42, skipping insertion in model container [2022-11-02 20:15:42,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:15:42,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:15:42,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:42,365 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:15:42,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:15:42,398 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:15:42,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42 WrapperNode [2022-11-02 20:15:42,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:15:42,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:42,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:15:42,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:15:42,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,458 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2022-11-02 20:15:42,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:15:42,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:15:42,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:15:42,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:15:42,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:15:42,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:15:42,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:15:42,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:15:42,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (1/1) ... [2022-11-02 20:15:42,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:42,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:42,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:42,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:15:42,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:15:42,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:15:42,689 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:15:42,693 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:15:42,799 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:15:42,809 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:15:42,809 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:15:42,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:42 BoogieIcfgContainer [2022-11-02 20:15:42,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:15:42,815 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:15:42,815 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:15:42,820 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:15:42,822 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:42,822 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:15:42" (1/3) ... [2022-11-02 20:15:42,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25aa271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:15:42, skipping insertion in model container [2022-11-02 20:15:42,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:42,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:15:42" (2/3) ... [2022-11-02 20:15:42,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25aa271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:15:42, skipping insertion in model container [2022-11-02 20:15:42,825 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:15:42,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:42" (3/3) ... [2022-11-02 20:15:42,830 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2022-11-02 20:15:42,915 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:15:42,915 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:15:42,916 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:15:42,916 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:15:42,916 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:15:42,916 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:15:42,916 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:15:42,917 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:15:42,922 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 20:15:42,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-02 20:15:42,957 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:42,957 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:42,967 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:15:42,968 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:15:42,968 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:15:42,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 20:15:42,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2022-11-02 20:15:42,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:42,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:42,971 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-02 20:15:42,971 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:15:42,981 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 8#L11-2true [2022-11-02 20:15:42,982 INFO L750 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 8#L11-2true [2022-11-02 20:15:42,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:42,992 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-02 20:15:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949306085] [2022-11-02 20:15:43,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:43,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-02 20:15:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518097499] [2022-11-02 20:15:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:43,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-02 20:15:43,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:43,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190733968] [2022-11-02 20:15:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:43,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:43,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:43,397 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:43,398 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:43,398 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:43,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:43,399 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:15:43,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,399 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:43,399 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:43,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2022-11-02 20:15:43,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:43,400 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:43,428 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 20:15:43,445 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 20:15:43,451 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 20:15:43,530 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:43,531 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:15:43,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:43,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:43,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:43,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:43,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-02 20:15:43,608 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:43,608 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:43,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:43,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:43,663 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:43,672 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:43,672 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:43,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-02 20:15:43,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:43,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:43,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:43,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:43,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:43,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:43,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:43,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-02 20:15:43,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:43,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:43,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:43,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:15:43,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:43,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-02 20:15:43,931 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:15:43,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:43,939 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:43,939 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:43,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:43,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:43,940 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:15:43,940 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:43,940 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:43,940 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:43,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2022-11-02 20:15:43,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:43,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:43,944 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 20:15:43,949 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 20:15:43,955 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 20:15:44,010 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:44,016 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:15:44,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-02 20:15:44,031 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 20:15:44,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:44,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:44,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:44,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:44,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:15:44,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:15:44,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:44,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-02 20:15:44,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-02 20:15:44,127 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 20:15:44,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:44,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:44,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:44,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:44,162 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:15:44,162 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:15:44,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:44,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:44,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-02 20:15:44,253 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 20:15:44,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:44,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:44,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:44,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:44,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:44,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:44,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:44,285 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:15:44,289 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:15:44,289 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:15:44,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,293 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:15:44,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:15:44,298 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:15:44,298 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2022-11-02 20:15:44,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-02 20:15:44,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:44,354 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:15:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:44,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:15:44,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:44,414 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:15:44,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:44,415 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 20:15:44,490 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 20:15:44,492 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:15:44,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-02 20:15:44,584 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20 states and 29 transitions. Complement of second has 5 states. [2022-11-02 20:15:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-02 20:15:44,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20:15:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-11-02 20:15:44,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2022-11-02 20:15:44,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:44,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-02 20:15:44,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:44,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-02 20:15:44,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:44,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2022-11-02 20:15:44,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:15:44,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 6 states and 8 transitions. [2022-11-02 20:15:44,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2022-11-02 20:15:44,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2022-11-02 20:15:44,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2022-11-02 20:15:44,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:44,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2022-11-02 20:15:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2022-11-02 20:15:44,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2022-11-02 20:15:44,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 20:15:44,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2022-11-02 20:15:44,647 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 7 transitions. [2022-11-02 20:15:44,647 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2022-11-02 20:15:44,647 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:15:44,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2022-11-02 20:15:44,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-02 20:15:44,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:15:44,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:15:44,650 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-02 20:15:44,650 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-02 20:15:44,651 INFO L748 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 61#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 62#L11-2 assume !(main_~i~0#1 < 100); 59#L13-1 [2022-11-02 20:15:44,652 INFO L750 eck$LassoCheckResult]: Loop: 59#L13-1 assume !!(main_~j~0#1 < 21);main_~j~0#1 := 3 + main_~j~0#1; 59#L13-1 [2022-11-02 20:15:44,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:44,655 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2022-11-02 20:15:44,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:44,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226079831] [2022-11-02 20:15:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:44,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:15:44,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:15:44,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226079831] [2022-11-02 20:15:44,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226079831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:15:44,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:15:44,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:15:44,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920354198] [2022-11-02 20:15:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:15:44,730 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-02 20:15:44,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:44,734 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2022-11-02 20:15:44,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:15:44,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304045477] [2022-11-02 20:15:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:15:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:15:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:44,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:15:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:15:44,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:15:44,793 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:44,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:44,794 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:44,794 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:44,794 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-02 20:15:44,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:44,794 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:44,795 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2022-11-02 20:15:44,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:44,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:44,799 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 20:15:44,809 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 20:15:44,822 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 20:15:44,883 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:44,883 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-02 20:15:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,886 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:44,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:44,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-02 20:15:44,925 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-02 20:15:44,925 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-02 20:15:44,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:44,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:44,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:44,978 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:44,991 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-02 20:15:44,991 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:45,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-02 20:15:45,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:45,072 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:45,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-02 20:15:45,085 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-02 20:15:45,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-02 20:15:45,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-02 20:15:45,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:45,182 INFO L210 LassoAnalysis]: Preferences: [2022-11-02 20:15:45,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-02 20:15:45,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-02 20:15:45,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-02 20:15:45,183 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-02 20:15:45,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:45,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-02 20:15:45,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-02 20:15:45,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2022-11-02 20:15:45,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-02 20:15:45,184 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-02 20:15:45,185 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 20:15:45,193 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 20:15:45,202 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 20:15:45,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-02 20:15:45,258 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-02 20:15:45,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:45,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:45,260 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:45,264 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 20:15:45,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-02 20:15:45,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:45,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:45,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:45,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:45,291 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-02 20:15:45,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-02 20:15:45,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-02 20:15:45,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:45,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:45,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:45,357 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:45,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-02 20:15:45,367 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 20:15:45,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-02 20:15:45,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-02 20:15:45,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-02 20:15:45,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-02 20:15:45,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-02 20:15:45,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-02 20:15:45,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-02 20:15:45,399 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-02 20:15:45,403 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-02 20:15:45,403 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-02 20:15:45,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:15:45,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:15:45,405 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:15:45,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-02 20:15:45,412 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-02 20:15:45,412 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-02 20:15:45,412 INFO L513 LassoAnalysis]: Proved termination. [2022-11-02 20:15:45,412 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2022-11-02 20:15:45,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:45,465 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-02 20:15:45,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:15:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:45,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:15:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:15:45,516 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:15:45,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:15:45,518 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 20:15:45,518 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-02 20:15:45,519 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 20:15:45,534 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 6 states and 8 transitions. Complement of second has 2 states. [2022-11-02 20:15:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-02 20:15:45,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 20:15:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2022-11-02 20:15:45,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-02 20:15:45,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:45,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2022-11-02 20:15:45,539 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:45,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2022-11-02 20:15:45,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-02 20:15:45,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2022-11-02 20:15:45,542 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:15:45,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2022-11-02 20:15:45,546 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:15:45,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:15:45,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:15:45,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:45,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:15:45,547 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:15:45,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:15:45,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:15:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:15:45,554 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 20:15:45,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:15:45,561 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-02 20:15:45,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-02 20:15:45,561 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:15:45,562 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:15:45,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-02 20:15:45,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-02 20:15:45,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-02 20:15:45,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:15:45,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:15:45,563 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:15:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:15:45,565 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:15:45,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:15:45,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:15:45,566 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-02 20:15:45,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-02 20:15:45,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:15:45 BoogieIcfgContainer [2022-11-02 20:15:45,584 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:15:45,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:15:45,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:15:45,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:15:45,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:15:42" (3/4) ... [2022-11-02 20:15:45,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 20:15:45,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:15:45,595 INFO L158 Benchmark]: Toolchain (without parser) took 3448.27ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 66.4MB in the end (delta: 14.7MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-02 20:15:45,596 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:15:45,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.79ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 95.8MB in the end (delta: -14.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:15:45,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 95.8MB in the beginning and 94.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:15:45,601 INFO L158 Benchmark]: Boogie Preprocessor took 27.11ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 93.7MB in the end (delta: 649.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:15:45,602 INFO L158 Benchmark]: RCFGBuilder took 324.48ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 85.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:15:45,607 INFO L158 Benchmark]: BuchiAutomizer took 2769.83ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 67.0MB in the end (delta: 18.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2022-11-02 20:15:45,607 INFO L158 Benchmark]: Witness Printer took 7.58ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.4MB in the end (delta: 619.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:15:45,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.79ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 95.8MB in the end (delta: -14.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 117.4MB. Free memory was 95.8MB in the beginning and 94.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.11ms. Allocated memory is still 117.4MB. Free memory was 94.3MB in the beginning and 93.7MB in the end (delta: 649.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.48ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 85.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2769.83ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 67.0MB in the end (delta: 18.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 7.58ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 66.4MB in the end (delta: 619.3kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s 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 20:15:45,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:15:45,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2de2c79-50c1-4393-81e9-66834ff4da3b/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