./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y --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 b329d37fd8bf911c1223006468d56bb06a44739627ad380de3f708faf818709f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:57:41,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:57:41,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:57:41,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:57:41,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:57:41,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:57:41,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:57:41,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:57:41,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:57:41,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:57:41,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:57:41,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:57:41,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:57:41,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:57:41,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:57:41,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:57:41,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:57:41,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:57:41,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:57:41,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:57:41,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:57:41,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:57:41,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:57:41,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:57:41,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:57:41,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:57:41,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:57:41,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:57:41,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:57:41,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:57:41,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:57:41,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:57:41,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:57:41,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:57:41,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:57:41,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:57:41,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:57:41,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:57:41,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:57:41,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:57:41,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:57:41,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 17:57:41,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:57:41,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:57:41,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:57:41,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:57:41,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:57:41,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:57:41,244 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:57:41,244 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 17:57:41,245 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 17:57:41,245 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 17:57:41,246 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 17:57:41,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 17:57:41,247 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 17:57:41,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:57:41,247 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:57:41,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 17:57:41,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:57:41,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:57:41,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:57:41,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 17:57:41,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 17:57:41,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 17:57:41,249 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:57:41,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:57:41,249 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 17:57:41,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:57:41,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 17:57:41,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:57:41,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:57:41,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:57:41,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:57:41,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:57:41,252 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 17:57:41,253 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_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b329d37fd8bf911c1223006468d56bb06a44739627ad380de3f708faf818709f [2021-11-13 17:57:41,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:57:41,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:57:41,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:57:41,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:57:41,648 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:57:41,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2021-11-13 17:57:41,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/data/3fdaa953b/21c3d85f10f54c08b0d1a7e905226888/FLAG416598ff2 [2021-11-13 17:57:42,268 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:57:42,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2021-11-13 17:57:42,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/data/3fdaa953b/21c3d85f10f54c08b0d1a7e905226888/FLAG416598ff2 [2021-11-13 17:57:42,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/data/3fdaa953b/21c3d85f10f54c08b0d1a7e905226888 [2021-11-13 17:57:42,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:57:42,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:57:42,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:57:42,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:57:42,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:57:42,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6ac3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42, skipping insertion in model container [2021-11-13 17:57:42,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:57:42,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:57:42,836 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_f2f824c5-6cef-4f09-851e-019f2dddf070/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] [2021-11-13 17:57:42,840 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_f2f824c5-6cef-4f09-851e-019f2dddf070/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2021-11-13 17:57:42,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:57:42,855 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:57:42,869 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_f2f824c5-6cef-4f09-851e-019f2dddf070/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] [2021-11-13 17:57:42,871 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_f2f824c5-6cef-4f09-851e-019f2dddf070/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2021-11-13 17:57:42,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:57:42,888 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:57:42,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42 WrapperNode [2021-11-13 17:57:42,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:57:42,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:57:42,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:57:42,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:57:42,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:57:42,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:57:42,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:57:42,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:57:42,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:57:42,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:57:42,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:57:42,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:57:42,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (1/1) ... [2021-11-13 17:57:42,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:42,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:42,989 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:43,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 17:57:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-13 17:57:43,042 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-13 17:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:57:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2021-11-13 17:57:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2021-11-13 17:57:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:57:43,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:57:43,262 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:57:43,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:57:43 BoogieIcfgContainer [2021-11-13 17:57:43,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:57:43,265 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 17:57:43,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 17:57:43,270 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 17:57:43,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:57:43,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:57:42" (1/3) ... [2021-11-13 17:57:43,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd9c2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:57:43, skipping insertion in model container [2021-11-13 17:57:43,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:57:43,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:57:42" (2/3) ... [2021-11-13 17:57:43,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dd9c2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:57:43, skipping insertion in model container [2021-11-13 17:57:43,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 17:57:43,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:57:43" (3/3) ... [2021-11-13 17:57:43,275 INFO L388 chiAutomizerObserver]: Analyzing ICFG afterrec_2calls-2.c [2021-11-13 17:57:43,340 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 17:57:43,340 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 17:57:43,340 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 17:57:43,341 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 17:57:43,341 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 17:57:43,341 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 17:57:43,341 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 17:57:43,341 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 17:57:43,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:57:43,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-13 17:57:43,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:57:43,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:57:43,384 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 17:57:43,400 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:57:43,400 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 17:57:43,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 17:57:43,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-11-13 17:57:43,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 17:57:43,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 17:57:43,405 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-13 17:57:43,405 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-11-13 17:57:43,411 INFO L791 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#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(20);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 16#L23true call f(2);< 13#fENTRYtrue [2021-11-13 17:57:43,428 INFO L793 eck$LassoCheckResult]: Loop: 13#fENTRYtrue ~n := #in~n; 6#L9true assume !(~n < 3);#t~post9 := ~n;~n := #t~post9 - 1;havoc #t~post9; 9#L11true call f2(~n);< 7#f2ENTRYtrue ~n := #in~n; 15#L16true assume !(~n < 3);#t~post10 := ~n;~n := #t~post10 - 1;havoc #t~post10; 17#L18true call f(~n);< 13#fENTRYtrue [2021-11-13 17:57:43,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash 38808, now seen corresponding path program 1 times [2021-11-13 17:57:43,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:57:43,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494604048] [2021-11-13 17:57:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:43,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:57:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:57:43,576 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:57:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:57:43,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:57:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash 891958565, now seen corresponding path program 1 times [2021-11-13 17:57:43,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:57:43,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718529491] [2021-11-13 17:57:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:43,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:57:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:57:43,663 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 17:57:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 17:57:43,684 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 17:57:43,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:43,687 INFO L85 PathProgramCache]: Analyzing trace with hash 904560508, now seen corresponding path program 1 times [2021-11-13 17:57:43,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:57:43,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745959464] [2021-11-13 17:57:43,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:43,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:57:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:57:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:57:43,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:57:43,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745959464] [2021-11-13 17:57:43,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745959464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:57:43,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:57:43,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:57:43,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063723980] [2021-11-13 17:57:43,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:57:44,024 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:57:44,024 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:57:44,025 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:57:44,025 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:57:44,025 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 17:57:44,025 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,025 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:57:44,026 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:57:44,026 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-2.c_Iteration1_Loop [2021-11-13 17:57:44,026 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:57:44,026 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:57:44,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,102 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:57:44,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 17:57:44,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:44,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:44,118 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:57:44,118 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:57:44,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 17:57:44,148 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 17:57:44,148 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2_#t~post10=0} Honda state: {f2_#t~post10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 17:57:44,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 17:57:44,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:44,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:44,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 17:57:44,196 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:57:44,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 17:57:44,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-13 17:57:44,260 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:44,262 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:44,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 17:57:44,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 17:57:44,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 17:57:44,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 17:57:44,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 17:57:44,368 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 17:57:44,368 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 17:57:44,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 17:57:44,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 17:57:44,369 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 17:57:44,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,369 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 17:57:44,369 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 17:57:44,369 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-2.c_Iteration1_Loop [2021-11-13 17:57:44,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 17:57:44,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 17:57:44,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 17:57:44,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 17:57:44,465 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 17:57:44,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:44,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:44,488 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 [2021-11-13 17:57:44,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 17:57:44,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 17:57:44,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 17:57:44,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 17:57:44,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 17:57:44,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 17:57:44,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 17:57:44,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 17:57:44,527 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 17:57:44,542 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-13 17:57:44,542 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-13 17:57:44,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 17:57:44,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:57:44,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 17:57:44,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 17:57:44,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 17:57:44,585 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 17:57:44,586 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 17:57:44,586 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2021-11-13 17:57:44,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 17:57:44,627 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 17:57:44,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:57:44,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 17:57:44,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:57:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:57:44,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 17:57:44,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 17:57:44,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:57:44,835 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-11-13 17:57:44,836 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:57:45,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 62 transitions. Complement of second has 26 states. [2021-11-13 17:57:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-11-13 17:57:45,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:57:45,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2021-11-13 17:57:45,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-13 17:57:45,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:57:45,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 9 letters. Loop has 6 letters. [2021-11-13 17:57:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:57:45,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 12 letters. [2021-11-13 17:57:45,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 17:57:45,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 62 transitions. [2021-11-13 17:57:45,039 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:57:45,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2021-11-13 17:57:45,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 17:57:45,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 17:57:45,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 17:57:45,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:57:45,043 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:57:45,043 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:57:45,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:57:45,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:57:45,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:57:45,047 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:57:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:57:45,050 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-13 17:57:45,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 17:57:45,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-13 17:57:45,051 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:57:45,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 17:57:45,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 17:57:45,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 17:57:45,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 17:57:45,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 17:57:45,052 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:57:45,052 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:57:45,053 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:57:45,053 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 17:57:45,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:57:45,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 17:57:45,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 17:57:45,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 05:57:45 BoogieIcfgContainer [2021-11-13 17:57:45,060 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 17:57:45,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 17:57:45,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 17:57:45,061 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 17:57:45,061 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:57:43" (3/4) ... [2021-11-13 17:57:45,064 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 17:57:45,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 17:57:45,065 INFO L158 Benchmark]: Toolchain (without parser) took 2437.18ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 74.7MB in the beginning and 106.1MB in the end (delta: -31.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,066 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:57:45,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.78ms. Allocated memory is still 115.3MB. Free memory was 74.5MB in the beginning and 90.0MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.29ms. Allocated memory is still 115.3MB. Free memory was 90.0MB in the beginning and 88.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,068 INFO L158 Benchmark]: Boogie Preprocessor took 26.69ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 88.0MB in the end (delta: 460.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 17:57:45,068 INFO L158 Benchmark]: RCFGBuilder took 312.58ms. Allocated memory is still 115.3MB. Free memory was 87.5MB in the beginning and 78.4MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,069 INFO L158 Benchmark]: BuchiAutomizer took 1795.00ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 107.1MB in the end (delta: -28.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,070 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 17:57:45,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.78ms. Allocated memory is still 115.3MB. Free memory was 74.5MB in the beginning and 90.0MB in the end (delta: -15.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.29ms. Allocated memory is still 115.3MB. Free memory was 90.0MB in the beginning and 88.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.69ms. Allocated memory is still 115.3MB. Free memory was 88.4MB in the beginning and 88.0MB in the end (delta: 460.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.58ms. Allocated memory is still 115.3MB. Free memory was 87.5MB in the beginning and 78.4MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1795.00ms. Allocated memory was 115.3MB in the beginning and 153.1MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 107.1MB in the end (delta: -28.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 106.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 9 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. 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, 13 SdHoareTripleChecker+Valid, 47.51ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 38.18ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 7 mSDtfsCounter, 49 mSolverCounterSat, 2.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 119ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2021-11-13 17:57:45,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 17:57:45,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f824c5-6cef-4f09-851e-019f2dddf070/bin/uautomizer-YU5uOKAj3y/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