./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be --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 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:45:15,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:45:15,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:45:15,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:45:15,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:45:15,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:45:15,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:45:15,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:45:15,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:45:15,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:45:15,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:45:15,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:45:15,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:45:15,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:45:15,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:45:15,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:45:15,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:45:15,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:45:15,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:45:15,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:45:15,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:45:15,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:45:15,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:45:15,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:45:15,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:45:15,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:45:15,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:45:15,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:45:15,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:45:15,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:45:15,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:45:15,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:45:15,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:45:15,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:45:15,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:45:15,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:45:15,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:45:15,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:45:15,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:45:15,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:45:15,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:45:15,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:45:15,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:45:15,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:45:15,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:45:15,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:45:15,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:45:15,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:45:15,159 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:45:15,159 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:45:15,159 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:45:15,159 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:45:15,160 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:45:15,160 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:45:15,160 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:45:15,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:45:15,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:45:15,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:45:15,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:45:15,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:45:15,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:45:15,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:45:15,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:45:15,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:45:15,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:45:15,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:45:15,163 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:45:15,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:45:15,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:45:15,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:45:15,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:45:15,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:45:15,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:45:15,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:45:15,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:45:15,170 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_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c [2021-10-21 19:45:15,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:45:15,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:45:15,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:45:15,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:45:15,545 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:45:15,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2021-10-21 19:45:15,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/data/4a771b1ac/0807e87cfb46467e996aab4064707232/FLAG55de118af [2021-10-21 19:45:16,159 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:45:16,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2021-10-21 19:45:16,165 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/data/4a771b1ac/0807e87cfb46467e996aab4064707232/FLAG55de118af [2021-10-21 19:45:16,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/data/4a771b1ac/0807e87cfb46467e996aab4064707232 [2021-10-21 19:45:16,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:45:16,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:45:16,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:16,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:45:16,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:45:16,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78339cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16, skipping insertion in model container [2021-10-21 19:45:16,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:45:16,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:45:16,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2021-10-21 19:45:16,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:16,769 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:45:16,786 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2021-10-21 19:45:16,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:45:16,803 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:45:16,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16 WrapperNode [2021-10-21 19:45:16,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:45:16,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:16,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:45:16,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:45:16,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:45:16,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:45:16,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:45:16,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:45:16,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:45:16,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:45:16,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:45:16,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:45:16,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (1/1) ... [2021-10-21 19:45:16,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:16,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:16,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:16,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:45:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:45:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:45:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-21 19:45:16,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-21 19:45:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:45:16,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:45:17,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:45:17,151 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-21 19:45:17,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:17 BoogieIcfgContainer [2021-10-21 19:45:17,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:45:17,155 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:45:17,155 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:45:17,159 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:45:17,160 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:17,161 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:45:16" (1/3) ... [2021-10-21 19:45:17,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21928ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:45:17, skipping insertion in model container [2021-10-21 19:45:17,163 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:17,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:45:16" (2/3) ... [2021-10-21 19:45:17,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21928ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:45:17, skipping insertion in model container [2021-10-21 19:45:17,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:45:17,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:17" (3/3) ... [2021-10-21 19:45:17,166 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_15x0-2.c [2021-10-21 19:45:17,241 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:45:17,242 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:45:17,242 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:45:17,242 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:45:17,242 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:45:17,243 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:45:17,243 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:45:17,243 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:45:17,292 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) [2021-10-21 19:45:17,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:45:17,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:17,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:17,359 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:17,360 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:45:17,360 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:45:17,361 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) [2021-10-21 19:45:17,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 19:45:17,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:45:17,363 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:45:17,364 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:45:17,364 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 19:45:17,372 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 15;main_~b~0 := 0; 3#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-10-21 19:45:17,373 INFO L793 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 15#L6true assume !(~n <= 0); 14#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-10-21 19:45:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:17,389 INFO L82 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-21 19:45:17,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:17,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550144319] [2021-10-21 19:45:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:17,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,566 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-21 19:45:17,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:17,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97190901] [2021-10-21 19:45:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:17,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,674 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:17,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-21 19:45:17,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:45:17,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999712630] [2021-10-21 19:45:17,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:45:17,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:45:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,742 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:45:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:45:17,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:45:17,986 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:17,987 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:17,987 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:17,987 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:17,988 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:45:17,988 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:17,988 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:17,988 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:17,988 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2021-10-21 19:45:17,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:17,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:18,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,118 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:18,119 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:45:18,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:45:18,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:18,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:18,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:18,169 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:18,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 19:45:18,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:18,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:18,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:45:18,244 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:18,244 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:18,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:18,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:18,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:45:18,307 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:45:18,307 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:45:18,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,336 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:45:18,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:45:18,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:18,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,389 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:45:18,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:45:18,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:45:18,450 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:45:18,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,463 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:45:18,463 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:45:18,463 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:45:18,463 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:45:18,463 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:45:18,465 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,465 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:45:18,465 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:45:18,465 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2021-10-21 19:45:18,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:45:18,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:45:18,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:45:18,553 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:45:18,559 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:45:18,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,562 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,568 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 [2021-10-21 19:45:18,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:45:18,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:18,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:18,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:18,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:18,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:18,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:18,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:18,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:18,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,656 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 [2021-10-21 19:45:18,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:18,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:18,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:18,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:18,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:18,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:18,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:18,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:45:18,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:18,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,709 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:45:18,714 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 [2021-10-21 19:45:18,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:18,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:18,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:18,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:18,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:18,723 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:18,723 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:18,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:45:18,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 19:45:18,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,756 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:45:18,762 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 [2021-10-21 19:45:18,770 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:45:18,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:45:18,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:45:18,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:45:18,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:45:18,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:45:18,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:45:18,791 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:45:18,797 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:45:18,797 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:45:18,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:45:18,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:45:18,809 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:45:18,821 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:45:18,821 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:45:18,821 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:45:18,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-10-21 19:45:18,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:45:18,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:18,868 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:45:18,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:45:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:18,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:45:18,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:45:19,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:45:19,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:45:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:45:19,109 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 [2021-10-21 19:45:19,110 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) [2021-10-21 19:45:19,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:45:19,199 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. [2021-10-21 19:45:19,200 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 [2021-10-21 19:45:19,202 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) [2021-10-21 19:45:19,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-21 19:45:19,204 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-21 19:45:19,205 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:19,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-21 19:45:19,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:19,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-21 19:45:19,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:45:19,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-21 19:45:19,211 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:45:19,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-21 19:45:19,215 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:45:19,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:45:19,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:45:19,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:45:19,216 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:45:19,216 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:45:19,216 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:45:19,216 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:45:19,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:45:19,217 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:45:19,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:45:19,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:45:19 BoogieIcfgContainer [2021-10-21 19:45:19,223 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:45:19,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:45:19,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:45:19,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:45:19,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:45:17" (3/4) ... [2021-10-21 19:45:19,226 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:45:19,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:45:19,228 INFO L168 Benchmark]: Toolchain (without parser) took 2690.42 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 68.8 MB in the beginning and 103.3 MB in the end (delta: -34.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:19,229 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:19,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.97 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 68.6 MB in the beginning and 111.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:19,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 109.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:19,231 INFO L168 Benchmark]: Boogie Preprocessor took 21.03 ms. Allocated memory is still 136.3 MB. Free memory was 109.9 MB in the beginning and 109.2 MB in the end (delta: 693.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:19,231 INFO L168 Benchmark]: RCFGBuilder took 288.57 ms. Allocated memory is still 136.3 MB. Free memory was 108.5 MB in the beginning and 99.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:19,232 INFO L168 Benchmark]: BuchiAutomizer took 2067.88 ms. Allocated memory is still 136.3 MB. Free memory was 99.4 MB in the beginning and 104.1 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:19,233 INFO L168 Benchmark]: Witness Printer took 3.18 ms. Allocated memory is still 136.3 MB. Free memory was 104.1 MB in the beginning and 103.3 MB in the end (delta: 803.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:19,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.97 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 68.6 MB in the beginning and 111.3 MB in the end (delta: -42.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.55 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 109.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.03 ms. Allocated memory is still 136.3 MB. Free memory was 109.9 MB in the beginning and 109.2 MB in the end (delta: 693.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 288.57 ms. Allocated memory is still 136.3 MB. Free memory was 108.5 MB in the beginning and 99.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2067.88 ms. Allocated memory is still 136.3 MB. Free memory was 99.4 MB in the beginning and 104.1 MB in the end (delta: -4.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.18 ms. Allocated memory is still 136.3 MB. Free memory was 104.1 MB in the beginning and 103.3 MB in the end (delta: 803.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 5 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.8ms Time 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: 40ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:45:19,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9021422a-b9ed-47fd-a7f5-79ef5ea48a1a/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...