./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b12653f6fa3db43ddf9a1a43787bd2cd7fe91d3e4035502f1ea10705d9c83a6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:31:07,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:31:07,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:31:07,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:31:07,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:31:07,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:31:07,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:31:07,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:31:07,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:31:07,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:31:07,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:31:07,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:31:07,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:31:07,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:31:07,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:31:07,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:31:07,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:31:07,594 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:31:07,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:31:07,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:31:07,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:31:07,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:31:07,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:31:07,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:31:07,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:31:07,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:31:07,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:31:07,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:31:07,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:31:07,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:31:07,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:31:07,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:31:07,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:31:07,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:31:07,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:31:07,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:31:07,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:31:07,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:31:07,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:31:07,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:31:07,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:31:07,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-22 15:31:07,692 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:31:07,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:31:07,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:31:07,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:31:07,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:31:07,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:31:07,703 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:31:07,703 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 15:31:07,704 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 15:31:07,704 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 15:31:07,705 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 15:31:07,706 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 15:31:07,706 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 15:31:07,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:31:07,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 15:31:07,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:31:07,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:31:07,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 15:31:07,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:31:07,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 15:31:07,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 15:31:07,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 15:31:07,709 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 15:31:07,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:31:07,709 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 15:31:07,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:31:07,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 15:31:07,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:31:07,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:31:07,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:31:07,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:31:07,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:31:07,715 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 15:31:07,715 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_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b12653f6fa3db43ddf9a1a43787bd2cd7fe91d3e4035502f1ea10705d9c83a6 [2021-11-22 15:31:08,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:31:08,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:31:08,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:31:08,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:31:08,151 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:31:08,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2021-11-22 15:31:08,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/data/293c02111/4b08e3c386614543a407352933d247fa/FLAGf218ab9a1 [2021-11-22 15:31:08,859 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:31:08,860 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/sv-benchmarks/c/recursive-simple/sum_20x0-1.c [2021-11-22 15:31:08,873 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/data/293c02111/4b08e3c386614543a407352933d247fa/FLAGf218ab9a1 [2021-11-22 15:31:09,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/data/293c02111/4b08e3c386614543a407352933d247fa [2021-11-22 15:31:09,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:31:09,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:31:09,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:31:09,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:31:09,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:31:09,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e73d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09, skipping insertion in model container [2021-11-22 15:31:09,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:31:09,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:31:09,528 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/sv-benchmarks/c/recursive-simple/sum_20x0-1.c[481,494] [2021-11-22 15:31:09,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:31:09,540 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:31:09,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/sv-benchmarks/c/recursive-simple/sum_20x0-1.c[481,494] [2021-11-22 15:31:09,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:31:09,571 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:31:09,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09 WrapperNode [2021-11-22 15:31:09,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:31:09,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:31:09,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:31:09,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:31:09,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,612 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-22 15:31:09,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:31:09,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:31:09,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:31:09,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:31:09,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:31:09,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:31:09,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:31:09,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:31:09,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (1/1) ... [2021-11-22 15:31:09,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:09,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:09,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:09,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 15:31:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 15:31:09,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:31:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:31:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-11-22 15:31:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-11-22 15:31:09,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 15:31:09,823 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:31:09,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:31:09,989 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:31:09,997 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:31:09,997 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 15:31:10,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:31:09 BoogieIcfgContainer [2021-11-22 15:31:10,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:31:10,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 15:31:10,015 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 15:31:10,019 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 15:31:10,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:31:10,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 03:31:09" (1/3) ... [2021-11-22 15:31:10,022 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77bc342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:31:10, skipping insertion in model container [2021-11-22 15:31:10,022 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:31:10,022 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:31:09" (2/3) ... [2021-11-22 15:31:10,023 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77bc342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:31:10, skipping insertion in model container [2021-11-22 15:31:10,023 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:31:10,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:31:09" (3/3) ... [2021-11-22 15:31:10,025 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum_20x0-1.c [2021-11-22 15:31:10,084 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 15:31:10,084 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 15:31:10,085 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 15:31:10,085 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 15:31:10,085 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 15:31:10,085 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 15:31:10,085 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 15:31:10,086 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 15:31:10,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:31:10,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-22 15:31:10,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:31:10,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:31:10,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 15:31:10,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 15:31:10,167 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 15:31:10,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-22 15:31:10,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-22 15:31:10,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:31:10,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:31:10,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 15:31:10,173 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-22 15:31:10,181 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;main_~a~0#1 := 20;main_~b~0#1 := 0; 3#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 10#sumENTRYtrue [2021-11-22 15:31:10,181 INFO L793 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret4 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-11-22 15:31:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:10,197 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-11-22 15:31:10,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:10,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5805183] [2021-11-22 15:31:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:10,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,354 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:31:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,402 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:31:10,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:10,405 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-11-22 15:31:10,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:10,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167334894] [2021-11-22 15:31:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:10,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,415 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:31:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:31:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-11-22 15:31:10,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:31:10,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763537888] [2021-11-22 15:31:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:31:10,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:31:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,446 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:31:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:31:10,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:31:10,715 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:31:10,716 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:31:10,716 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:31:10,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:31:10,717 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 15:31:10,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:10,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:31:10,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:31:10,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop [2021-11-22 15:31:10,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:31:10,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:31:10,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:10,859 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:31:10,861 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 15:31:10,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:10,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:10,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:10,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:31:10,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:31:10,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 15:31:10,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:31:10,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 15:31:10,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:10,964 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:10,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:10,966 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:10,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:31:10,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:31:10,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 15:31:11,008 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:31:11,008 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 15:31:11,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:31:11,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:31:11,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 15:31:11,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:31:11,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 15:31:11,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:31:11,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:31:11,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 15:31:11,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 15:31:11,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:31:11,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-22 15:31:11,300 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 15:31:11,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,312 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:31:11,313 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:31:11,313 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:31:11,313 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:31:11,313 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 15:31:11,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:31:11,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:31:11,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-1.c_Iteration1_Loop [2021-11-22 15:31:11,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:31:11,314 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:31:11,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:31:11,409 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:31:11,414 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 15:31:11,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,418 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,449 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 [2021-11-22 15:31:11,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:31:11,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:31:11,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:31:11,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:31:11,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:31:11,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:31:11,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:31:11,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-22 15:31:11,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:31:11,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,529 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,531 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,540 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 [2021-11-22 15:31:11,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:31:11,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:31:11,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:31:11,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:31:11,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:31:11,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:31:11,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:31:11,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-22 15:31:11,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:31:11,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,614 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 [2021-11-22 15:31:11,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:31:11,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:31:11,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:31:11,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:31:11,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:31:11,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:31:11,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:31:11,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-22 15:31:11,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:31:11,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,685 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,694 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 [2021-11-22 15:31:11,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:31:11,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:31:11,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:31:11,705 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:31:11,705 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:31:11,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:31:11,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:31:11,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-22 15:31:11,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 15:31:11,728 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 15:31:11,728 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-22 15:31:11,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:31:11,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:31:11,732 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:31:11,738 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 15:31:11,738 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 15:31:11,738 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 15:31:11,739 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-11-22 15:31:11,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-22 15:31:11,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:11,788 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 15:31:11,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:31:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:11,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 15:31:11,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:31:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:31:11,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 15:31:11,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:31:11,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:31:11,995 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-22 15:31:11,996 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:31:12,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states. [2021-11-22 15:31:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-22 15:31:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 15:31:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-22 15:31:12,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-22 15:31:12,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:31:12,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-22 15:31:12,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:31:12,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-22 15:31:12,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:31:12,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-11-22 15:31:12,148 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 15:31:12,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-11-22 15:31:12,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 15:31:12,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 15:31:12,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 15:31:12,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:31:12,154 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:31:12,154 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:31:12,154 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:31:12,154 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 15:31:12,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 15:31:12,155 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 15:31:12,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 15:31:12,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 03:31:12 BoogieIcfgContainer [2021-11-22 15:31:12,168 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 15:31:12,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:31:12,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:31:12,171 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:31:12,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:31:09" (3/4) ... [2021-11-22 15:31:12,175 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:31:12,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:31:12,178 INFO L158 Benchmark]: Toolchain (without parser) took 2961.52ms. Allocated memory is still 111.1MB. Free memory was 75.1MB in the beginning and 70.1MB in the end (delta: 5.0MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2021-11-22 15:31:12,179 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 70.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:31:12,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.86ms. Allocated memory is still 111.1MB. Free memory was 74.9MB in the beginning and 88.1MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:31:12,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.51ms. Allocated memory is still 111.1MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:31:12,187 INFO L158 Benchmark]: Boogie Preprocessor took 19.84ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:31:12,188 INFO L158 Benchmark]: RCFGBuilder took 379.72ms. Allocated memory is still 111.1MB. Free memory was 85.9MB in the beginning and 77.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:31:12,189 INFO L158 Benchmark]: BuchiAutomizer took 2153.39ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 70.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-22 15:31:12,189 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 111.1MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:31:12,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 111.1MB. Free memory was 91.4MB in the beginning and 91.3MB in the end (delta: 70.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.86ms. Allocated memory is still 111.1MB. Free memory was 74.9MB in the beginning and 88.1MB in the end (delta: -13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.51ms. Allocated memory is still 111.1MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.84ms. Allocated memory is still 111.1MB. Free memory was 87.0MB in the beginning and 85.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 379.72ms. Allocated memory is still 111.1MB. Free memory was 85.9MB in the beginning and 77.3MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2153.39ms. Allocated memory is still 111.1MB. Free memory was 77.3MB in the beginning and 70.1MB in the end (delta: 7.1MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 111.1MB. Free memory is still 70.1MB. 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 \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 68ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 15:31:12,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-22 15:31:12,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83057ba9-0495-46f3-8d8e-97f5652908dc/bin/uautomizer-w2VwFs6gM0/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