./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF --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 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:36:26,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:36:26,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:36:26,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:36:26,049 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:36:26,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:36:26,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:36:26,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:36:26,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:36:26,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:36:26,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:36:26,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:36:26,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:36:26,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:36:26,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:36:26,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:36:26,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:36:26,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:36:26,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:36:26,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:36:26,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:36:26,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:36:26,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:36:26,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:36:26,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:36:26,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:36:26,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:36:26,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:36:26,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:36:26,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:36:26,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:36:26,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:36:26,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:36:26,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:36:26,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:36:26,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:36:26,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:36:26,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:36:26,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:36:26,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:36:26,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:36:26,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:36:26,189 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:36:26,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:36:26,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:36:26,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:36:26,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:36:26,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:36:26,198 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:36:26,198 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:36:26,198 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:36:26,198 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:36:26,199 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:36:26,200 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:36:26,200 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:36:26,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:36:26,200 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:36:26,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:36:26,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:36:26,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:36:26,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:36:26,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:36:26,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:36:26,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:36:26,202 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:36:26,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:36:26,203 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:36:26,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:36:26,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:36:26,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:36:26,205 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:36:26,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:36:26,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:36:26,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:36:26,208 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:36:26,208 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_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ec6e434f91e1569e6fad03794f07a751e615694ef413649174052dcc7984987 [2021-11-20 07:36:26,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:36:26,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:36:26,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:36:26,549 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:36:26,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:36:26,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2021-11-20 07:36:26,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/data/a7f9618cf/9e19572f8b1443199c18ea861238c20f/FLAGd107b2530 [2021-11-20 07:36:27,063 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:36:27,063 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/sv-benchmarks/c/recursive-simple/sum_25x0-1.c [2021-11-20 07:36:27,069 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/data/a7f9618cf/9e19572f8b1443199c18ea861238c20f/FLAGd107b2530 [2021-11-20 07:36:27,466 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/data/a7f9618cf/9e19572f8b1443199c18ea861238c20f [2021-11-20 07:36:27,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:36:27,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:36:27,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:27,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:36:27,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:36:27,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57477e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27, skipping insertion in model container [2021-11-20 07:36:27,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:36:27,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:36:27,682 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_823526ed-8e56-447f-9c93-ad90dcd3fa1f/sv-benchmarks/c/recursive-simple/sum_25x0-1.c[481,494] [2021-11-20 07:36:27,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:27,693 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:36:27,707 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_823526ed-8e56-447f-9c93-ad90dcd3fa1f/sv-benchmarks/c/recursive-simple/sum_25x0-1.c[481,494] [2021-11-20 07:36:27,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:36:27,722 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:36:27,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27 WrapperNode [2021-11-20 07:36:27,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:36:27,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:27,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:36:27,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:36:27,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,761 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-20 07:36:27,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:36:27,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:36:27,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:36:27,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:36:27,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:36:27,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:36:27,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:36:27,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:36:27,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (1/1) ... [2021-11-20 07:36:27,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:27,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:27,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:36:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:36:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:36:27,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:36:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-11-20 07:36:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-11-20 07:36:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:36:27,960 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:36:27,962 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:36:28,066 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:36:28,073 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:36:28,073 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:36:28,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:28 BoogieIcfgContainer [2021-11-20 07:36:28,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:36:28,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:36:28,077 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:36:28,080 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:36:28,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:36:28,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:36:27" (1/3) ... [2021-11-20 07:36:28,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cd5e65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:36:28, skipping insertion in model container [2021-11-20 07:36:28,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:36:28,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:36:27" (2/3) ... [2021-11-20 07:36:28,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5cd5e65d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:36:28, skipping insertion in model container [2021-11-20 07:36:28,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:36:28,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:28" (3/3) ... [2021-11-20 07:36:28,086 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum_25x0-1.c [2021-11-20 07:36:28,159 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:36:28,174 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:36:28,174 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:36:28,174 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:36:28,174 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:36:28,174 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:36:28,174 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:36:28,175 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:36:28,196 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) [2021-11-20 07:36:28,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:36:28,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:36:28,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:36:28,254 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 07:36:28,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:36:28,255 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:36:28,255 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) [2021-11-20 07:36:28,257 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:36:28,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:36:28,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:36:28,258 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 07:36:28,258 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:36:28,266 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 := 25;main_~b~0#1 := 0; 3#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 10#sumENTRYtrue [2021-11-20 07:36:28,267 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 [2021-11-20 07:36:28,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-11-20 07:36:28,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:28,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075064355] [2021-11-20 07:36:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:28,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,433 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:36:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:36:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:28,506 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-11-20 07:36:28,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:28,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653062611] [2021-11-20 07:36:28,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:28,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,527 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:36:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,547 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:36:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:28,550 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-11-20 07:36:28,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:36:28,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599077626] [2021-11-20 07:36:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:36:28,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:36:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,588 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:36:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:36:28,633 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:36:28,856 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:36:28,857 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:36:28,857 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:36:28,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:36:28,857 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:36:28,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:28,858 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:36:28,858 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:36:28,858 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_25x0-1.c_Iteration1_Loop [2021-11-20 07:36:28,858 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:36:28,858 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:36:28,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:28,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:28,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:28,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:28,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:28,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,026 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:36:29,027 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:36:29,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:36:29,046 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:36:29,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:36:29,080 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:36:29,080 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:36:29,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:36:29,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:36:29,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:36:29,162 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:36:29,162 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:36:29,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:36:29,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:36:29,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:36:29,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:36:29,230 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:36:29,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,274 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:36:29,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:36:29,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:36:29,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-20 07:36:29,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,316 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:36:29,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:36:29,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:36:29,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:36:29,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,402 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:36:29,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:36:29,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:36:29,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:36:29,403 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:36:29,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:36:29,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:36:29,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_25x0-1.c_Iteration1_Loop [2021-11-20 07:36:29,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:36:29,403 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:36:29,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:36:29,470 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:36:29,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:36:29,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,487 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 [2021-11-20 07:36:29,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:36:29,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:36:29,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:36:29,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:36:29,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:36:29,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:36:29,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:36:29,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:36:29,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:36:29,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,548 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:36:29,555 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 [2021-11-20 07:36:29,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:36:29,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:36:29,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:36:29,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:36:29,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:36:29,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:36:29,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:36:29,590 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:36:29,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,631 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,637 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 [2021-11-20 07:36:29,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:36:29,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:36:29,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:36:29,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:36:29,648 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:36:29,649 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:36:29,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:36:29,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:36:29,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:36:29,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:36:29,706 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 [2021-11-20 07:36:29,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:36:29,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:36:29,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:36:29,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:36:29,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:36:29,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:36:29,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:36:29,737 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:36:29,746 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:36:29,746 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 07:36:29,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:36:29,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:36:29,757 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:36:29,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:36:29,767 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:36:29,768 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:36:29,768 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:36:29,768 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-11-20 07:36:29,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:29,791 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:36:29,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:36:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:29,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:36:29,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:36:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:36:29,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:36:29,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:36:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:36:29,950 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 [2021-11-20 07:36:29,952 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) [2021-11-20 07:36:30,060 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. [2021-11-20 07:36:30,062 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 [2021-11-20 07:36:30,068 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) [2021-11-20 07:36:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-11-20 07:36:30,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-20 07:36:30,073 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:36:30,073 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-20 07:36:30,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:36:30,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-20 07:36:30,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:36:30,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-11-20 07:36:30,080 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:36:30,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-11-20 07:36:30,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:36:30,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:36:30,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:36:30,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:36:30,086 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:36:30,086 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:36:30,086 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:36:30,087 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:36:30,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:36:30,087 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:36:30,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:36:30,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:36:30 BoogieIcfgContainer [2021-11-20 07:36:30,096 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:36:30,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:36:30,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:36:30,097 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:36:30,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:36:28" (3/4) ... [2021-11-20 07:36:30,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:36:30,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:36:30,103 INFO L158 Benchmark]: Toolchain (without parser) took 2630.33ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 91.6MB in the beginning and 99.0MB in the end (delta: -7.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,104 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:30,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.09ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 91.4MB in the beginning and 118.8MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.30ms. Allocated memory is still 144.7MB. Free memory was 118.8MB in the beginning and 117.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,107 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 144.7MB. Free memory was 117.4MB in the beginning and 116.6MB in the end (delta: 795.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:30,107 INFO L158 Benchmark]: RCFGBuilder took 283.31ms. Allocated memory is still 144.7MB. Free memory was 116.4MB in the beginning and 108.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,108 INFO L158 Benchmark]: BuchiAutomizer took 2019.71ms. Allocated memory is still 144.7MB. Free memory was 108.1MB in the beginning and 99.0MB in the end (delta: 9.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-20 07:36:30,109 INFO L158 Benchmark]: Witness Printer took 5.23ms. Allocated memory is still 144.7MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:30,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.09ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 91.4MB in the beginning and 118.8MB in the end (delta: -27.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.30ms. Allocated memory is still 144.7MB. Free memory was 118.8MB in the beginning and 117.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 144.7MB. Free memory was 117.4MB in the beginning and 116.6MB in the end (delta: 795.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 283.31ms. Allocated memory is still 144.7MB. Free memory was 116.4MB in the beginning and 108.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2019.71ms. Allocated memory is still 144.7MB. Free memory was 108.1MB in the beginning and 99.0MB in the end (delta: 9.1MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 5.23ms. Allocated memory is still 144.7MB. Free memory is still 99.0MB. 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 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 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: 28ms 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! [2021-11-20 07:36:30,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:30,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_823526ed-8e56-447f-9c93-ad90dcd3fa1f/bin/uautomizer-DQz5hQGWxF/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