./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.11.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5b4c99d0b33a566b40cf4365ddd1611945e8961cf9631a2c233f1ae25de30e8d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:20:32,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:20:32,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:20:32,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:20:32,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:20:32,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:20:32,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:20:32,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:20:32,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:20:32,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:20:32,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:20:32,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:20:32,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:20:32,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:20:32,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:20:32,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:20:32,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:20:32,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:20:32,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:20:32,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:20:32,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:20:32,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:20:32,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:20:32,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:20:32,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:20:32,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:20:32,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:20:32,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:20:32,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:20:32,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:20:32,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:20:32,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:20:32,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:20:32,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:20:32,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:20:32,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:20:32,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:20:32,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:20:32,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:20:32,335 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:20:32,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:20:32,337 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 20:20:32,400 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:20:32,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:20:32,403 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:20:32,403 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:20:32,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:20:32,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:20:32,405 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:20:32,406 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:20:32,406 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:20:32,406 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:20:32,407 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:20:32,408 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:20:32,408 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:20:32,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:20:32,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:20:32,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:20:32,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:20:32,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:20:32,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:20:32,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:20:32,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:20:32,410 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:20:32,411 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:20:32,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:20:32,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:20:32,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:20:32,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:20:32,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:20:32,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:20:32,414 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:20:32,414 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_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4c99d0b33a566b40cf4365ddd1611945e8961cf9631a2c233f1ae25de30e8d [2021-10-21 20:20:32,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:20:32,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:20:32,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:20:32,797 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:20:32,798 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:20:32,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-restricted-15/b.11.c [2021-10-21 20:20:32,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/data/7a269e7fe/d618f2d8c15048688a6c5fb163bdff3f/FLAGcfead0fc4 [2021-10-21 20:20:33,506 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:20:33,507 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/sv-benchmarks/c/termination-restricted-15/b.11.c [2021-10-21 20:20:33,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/data/7a269e7fe/d618f2d8c15048688a6c5fb163bdff3f/FLAGcfead0fc4 [2021-10-21 20:20:33,845 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/data/7a269e7fe/d618f2d8c15048688a6c5fb163bdff3f [2021-10-21 20:20:33,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:20:33,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:20:33,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:20:33,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:20:33,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:20:33,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:20:33" (1/1) ... [2021-10-21 20:20:33,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ca6c9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:33, skipping insertion in model container [2021-10-21 20:20:33,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:20:33" (1/1) ... [2021-10-21 20:20:33,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:20:33,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:20:34,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:20:34,101 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:20:34,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:20:34,134 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:20:34,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34 WrapperNode [2021-10-21 20:20:34,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:20:34,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:20:34,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:20:34,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:20:34,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:20:34,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:20:34,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:20:34,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:20:34,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:20:34,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:20:34,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:20:34,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:20:34,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (1/1) ... [2021-10-21 20:20:34,242 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:34,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:34,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:34,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:20:34,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:20:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:20:34,509 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:20:34,510 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 20:20:34,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:20:34 BoogieIcfgContainer [2021-10-21 20:20:34,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:20:34,514 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:20:34,514 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:20:34,519 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:20:34,520 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:20:34,520 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:20:33" (1/3) ... [2021-10-21 20:20:34,522 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c829ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:20:34, skipping insertion in model container [2021-10-21 20:20:34,522 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:20:34,524 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:20:34" (2/3) ... [2021-10-21 20:20:34,525 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c829ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:20:34, skipping insertion in model container [2021-10-21 20:20:34,525 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:20:34,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:20:34" (3/3) ... [2021-10-21 20:20:34,528 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.11.c [2021-10-21 20:20:34,590 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:20:34,590 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:20:34,591 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:20:34,591 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:20:34,591 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:20:34,591 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:20:34,591 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:20:34,592 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:20:34,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:34,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:20:34,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:20:34,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:20:34,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:20:34,640 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:20:34,640 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:20:34,640 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:34,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:20:34,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:20:34,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:20:34,643 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 20:20:34,643 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 20:20:34,652 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L15-2true [2021-10-21 20:20:34,656 INFO L793 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 9#L12true assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2021-10-21 20:20:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:34,680 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 20:20:34,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:34,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077475233] [2021-10-21 20:20:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:34,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:34,882 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:34,908 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:34,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:34,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 20:20:34,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:34,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244842556] [2021-10-21 20:20:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:34,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:34,960 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:34,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:35,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:35,007 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 20:20:35,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:35,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178618368] [2021-10-21 20:20:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:35,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:35,036 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:35,056 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:35,243 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:20:35,244 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:20:35,244 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:20:35,244 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:20:35,245 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:20:35,245 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,245 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:20:35,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:20:35,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2021-10-21 20:20:35,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:20:35,247 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:20:35,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,368 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:20:35,369 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:20:35,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,375 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:20:35,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:35,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:35,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:20:35,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:20:35,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:35,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,459 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:20:35,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:35,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:35,501 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:20:35,501 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:20:35,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:35,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:20:35,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:35,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:35,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-21 20:20:35,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,608 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:20:35,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:20:35,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:35,659 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:20:35,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:35,670 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:20:35,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:20:35,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:20:35,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:20:35,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:20:35,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:20:35,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:20:35,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2021-10-21 20:20:35,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:20:35,671 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:20:35,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:35,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:20:35,761 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:20:35,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:35,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:35,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:35,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:20:35,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:35,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:20:35,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:20:35,801 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:20:35,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:20:35,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:35,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,872 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:35,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:35,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:35,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:20:35,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:35,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:20:35,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:20:35,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:20:35,924 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:20:35,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:35,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:35,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:35,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:20:35,961 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:35,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:35,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:20:35,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:35,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:20:35,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:35,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:20:35,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:20:36,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:20:36,040 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 20:20:36,040 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-21 20:20:36,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:36,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:36,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:20:36,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:20:36,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:20:36,069 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:20:36,069 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 20:20:36,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:36,095 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:20:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:20:36,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:20:36,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:20:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:20:36,162 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:20:36,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:20:36,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 20:20:36,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:20:36,242 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:20:36,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:36,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 33 transitions. Complement of second has 7 states. [2021-10-21 20:20:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-21 20:20:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-10-21 20:20:36,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 20:20:36,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:36,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 20:20:36,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:36,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 20:20:36,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:36,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. [2021-10-21 20:20:36,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:20:36,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 14 transitions. [2021-10-21 20:20:36,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 20:20:36,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-21 20:20:36,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2021-10-21 20:20:36,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:20:36,333 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-10-21 20:20:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2021-10-21 20:20:36,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2021-10-21 20:20:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2021-10-21 20:20:36,359 INFO L704 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-21 20:20:36,359 INFO L587 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-21 20:20:36,359 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:20:36,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2021-10-21 20:20:36,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:20:36,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:20:36,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:20:36,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-21 20:20:36,361 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:20:36,361 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 68#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2021-10-21 20:20:36,361 INFO L793 eck$LassoCheckResult]: Loop: 74#L12 assume !(main_~x~0 > main_~y~0); 69#L15 assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1; 70#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 74#L12 [2021-10-21 20:20:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:36,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 20:20:36,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:36,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486449947] [2021-10-21 20:20:36,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:36,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,372 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,380 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:36,382 INFO L82 PathProgramCache]: Analyzing trace with hash 44836, now seen corresponding path program 1 times [2021-10-21 20:20:36,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:36,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894147341] [2021-10-21 20:20:36,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:36,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,395 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,404 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:36,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:36,405 INFO L82 PathProgramCache]: Analyzing trace with hash 29865627, now seen corresponding path program 1 times [2021-10-21 20:20:36,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:20:36,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889320725] [2021-10-21 20:20:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:20:36,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:20:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:20:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:20:36,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:20:36,519 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:20:36,519 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:20:36,519 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:20:36,520 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:20:36,520 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:20:36,520 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,520 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:20:36,520 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:20:36,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2021-10-21 20:20:36,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:20:36,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:20:36,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:36,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:36,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:36,695 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:20:36,696 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:20:36,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:36,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:36,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:36,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:36,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:20:36,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:20:36,731 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:20:36,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:36,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:36,773 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:36,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:36,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:36,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:20:36,808 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:20:36,808 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:20:36,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:36,854 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:36,856 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:36,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:20:36,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:36,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:20:36,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:36,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:36,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:36,934 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:36,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:20:36,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:20:36,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:20:37,007 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:20:37,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:37,016 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:20:37,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:20:37,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:20:37,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:20:37,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:20:37,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:37,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:20:37,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:20:37,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2021-10-21 20:20:37,017 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:20:37,017 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:20:37,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:37,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:37,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:20:37,164 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:20:37,165 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:20:37,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:37,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:37,180 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:37,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:20:37,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:37,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:37,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:37,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:20:37,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:37,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:20:37,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:20:37,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:20:37,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 20:20:37,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:37,279 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:37,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:20:37,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:37,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:37,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:37,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:20:37,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:37,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 20:20:37,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 20:20:37,332 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:20:37,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:37,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:37,376 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:37,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:20:37,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:20:37,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:20:37,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:20:37,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:20:37,391 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-21 20:20:37,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:20:37,397 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 20:20:37,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:20:37,412 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:20:37,423 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 20:20:37,424 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-21 20:20:37,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:20:37,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:20:37,426 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:20:37,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:20:37,465 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:20:37,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:20:37,466 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:20:37,466 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-21 20:20:37,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:37,511 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:20:37,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:20:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:20:37,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:20:37,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:20:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:20:37,550 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 20:20:37,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:20:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:20:37,665 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-21 20:20:37,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:37,740 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 9 states. [2021-10-21 20:20:37,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-21 20:20:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:20:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2021-10-21 20:20:37,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-21 20:20:37,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:37,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-21 20:20:37,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:37,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-21 20:20:37,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:20:37,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2021-10-21 20:20:37,759 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:20:37,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2021-10-21 20:20:37,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:20:37,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:20:37,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:20:37,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:20:37,759 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:20:37,760 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:20:37,760 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:20:37,760 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:20:37,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:20:37,760 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:20:37,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:20:37,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:20:37 BoogieIcfgContainer [2021-10-21 20:20:37,767 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:20:37,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:20:37,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:20:37,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:20:37,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:20:34" (3/4) ... [2021-10-21 20:20:37,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:20:37,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:20:37,788 INFO L168 Benchmark]: Toolchain (without parser) took 3921.47 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 75.8 MB in the beginning and 69.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:37,789 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 113.2 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:20:37,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.53 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 88.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:37,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:37,793 INFO L168 Benchmark]: Boogie Preprocessor took 30.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 86.8 MB in the end (delta: 524.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:20:37,794 INFO L168 Benchmark]: RCFGBuilder took 283.06 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 77.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:37,797 INFO L168 Benchmark]: BuchiAutomizer took 3252.80 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.4 MB in the beginning and 69.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:20:37,797 INFO L168 Benchmark]: Witness Printer took 5.86 ms. Allocated memory is still 136.3 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:20:37,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 113.2 MB. Free memory is still 91.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.53 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 88.9 MB in the end (delta: -13.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.49 ms. Allocated memory is still 113.2 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.3 MB in the beginning and 86.8 MB in the end (delta: 524.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 283.06 ms. Allocated memory is still 113.2 MB. Free memory was 86.3 MB in the beginning and 77.9 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3252.80 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 77.4 MB in the beginning and 69.5 MB in the end (delta: 7.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.86 ms. Allocated memory is still 136.3 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 11.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 34 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax151 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq132 hnf96 smp90 dnf133 smp96 tf106 neg98 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:20:37,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:20:38,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32f5d605-de0d-4d92-b159-e3c4c65a7c50/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...