./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL --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 14352272474fcd72367ebff6d0f1f20f37763259fc59dc19b61cd8b29efae381 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:31:06,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:31:06,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:31:06,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:31:06,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:31:06,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:31:06,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:31:06,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:31:06,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:31:06,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:31:06,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:31:06,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:31:06,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:31:06,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:31:06,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:31:06,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:31:06,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:31:06,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:31:06,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:31:06,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:31:06,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:31:06,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:31:06,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:31:06,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:31:06,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:31:06,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:31:06,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:31:06,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:31:06,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:31:06,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:31:06,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:31:06,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:31:06,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:31:06,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:31:06,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:31:06,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:31:07,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:31:07,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:31:07,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:31:07,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:31:07,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:31:07,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:31:07,037 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:31:07,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:31:07,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:31:07,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:31:07,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:31:07,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:31:07,040 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:31:07,040 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:31:07,041 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:31:07,041 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:31:07,041 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:31:07,041 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:31:07,042 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:31:07,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:31:07,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:31:07,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:31:07,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:31:07,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:31:07,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:31:07,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:31:07,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:31:07,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:31:07,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:31:07,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:31:07,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:31:07,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:31:07,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:31:07,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:31:07,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:31:07,048 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:31:07,048 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_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14352272474fcd72367ebff6d0f1f20f37763259fc59dc19b61cd8b29efae381 [2021-11-19 04:31:07,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:31:07,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:31:07,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:31:07,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:31:07,404 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:31:07,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted/Singapore-2.c [2021-11-19 04:31:07,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/data/a37a003a8/1a4fd68f1fb7441fb91e52ec8e6ed031/FLAG994e74806 [2021-11-19 04:31:08,109 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:31:08,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/sv-benchmarks/c/termination-crafted/Singapore-2.c [2021-11-19 04:31:08,117 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/data/a37a003a8/1a4fd68f1fb7441fb91e52ec8e6ed031/FLAG994e74806 [2021-11-19 04:31:08,476 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/data/a37a003a8/1a4fd68f1fb7441fb91e52ec8e6ed031 [2021-11-19 04:31:08,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:31:08,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:31:08,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:31:08,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:31:08,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:31:08,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10553d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08, skipping insertion in model container [2021-11-19 04:31:08,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:31:08,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:31:08,738 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:31:08,742 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:31:08,759 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:31:08,774 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:31:08,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08 WrapperNode [2021-11-19 04:31:08,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:31:08,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:31:08,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:31:08,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:31:08,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,824 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-11-19 04:31:08,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:31:08,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:31:08,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:31:08,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:31:08,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:31:08,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:31:08,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:31:08,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:31:08,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (1/1) ... [2021-11-19 04:31:08,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:08,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:08,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:08,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:31:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:31:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:31:09,078 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:31:09,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:31:09,184 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:31:09,193 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:31:09,194 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:31:09,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:09 BoogieIcfgContainer [2021-11-19 04:31:09,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:31:09,198 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:31:09,198 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:31:09,202 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:31:09,204 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:09,204 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:31:08" (1/3) ... [2021-11-19 04:31:09,206 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7aa4b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:31:09, skipping insertion in model container [2021-11-19 04:31:09,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:09,206 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:08" (2/3) ... [2021-11-19 04:31:09,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7aa4b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:31:09, skipping insertion in model container [2021-11-19 04:31:09,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:09,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:09" (3/3) ... [2021-11-19 04:31:09,209 INFO L388 chiAutomizerObserver]: Analyzing ICFG Singapore-2.c [2021-11-19 04:31:09,265 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:31:09,265 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:31:09,266 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:31:09,266 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:31:09,266 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:31:09,266 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:31:09,266 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:31:09,266 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:31:09,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-11-19 04:31:09,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:31:09,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:31:09,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:31:09,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:31:09,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:31:09,315 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:31:09,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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) [2021-11-19 04:31:09,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:31:09,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:31:09,317 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:31:09,318 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-19 04:31:09,318 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:31:09,327 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 5#L18true assume !!(-65535 <= main_~y~0#1 && main_~y~0#1 <= 65535); 11#L19true assume main_~x~0#1 + main_~y~0#1 <= 0; 7#L20-2true [2021-11-19 04:31:09,327 INFO L793 eck$LassoCheckResult]: Loop: 7#L20-2true assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 + main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 - 1; 7#L20-2true [2021-11-19 04:31:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-11-19 04:31:09,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:09,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622392084] [2021-11-19 04:31:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:09,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,441 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:09,468 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2021-11-19 04:31:09,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:09,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571889869] [2021-11-19 04:31:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:09,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,479 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:09,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:09,489 INFO L85 PathProgramCache]: Analyzing trace with hash 889571281, now seen corresponding path program 1 times [2021-11-19 04:31:09,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:09,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343261532] [2021-11-19 04:31:09,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:09,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:09,516 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:09,634 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:31:09,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:31:09,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:31:09,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:31:09,636 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:31:09,636 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:09,636 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:31:09,636 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:31:09,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Loop [2021-11-19 04:31:09,637 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:31:09,637 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:31:09,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:09,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:09,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:09,806 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:31:09,807 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:31:09,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:09,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:09,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:31:09,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:09,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:09,859 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:09,860 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: [] [2021-11-19 04:31:09,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-19 04:31:09,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:09,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:09,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:31:09,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:09,919 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:09,941 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:09,942 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: [] [2021-11-19 04:31:09,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-19 04:31:09,980 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:09,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:09,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:09,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:09,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:31:10,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:31:10,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:31:10,073 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,164 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,165 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=13, ULTIMATE.start_main_~y~0#1=6} Honda state: {ULTIMATE.start_main_~x~0#1=13, ULTIMATE.start_main_~y~0#1=6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=15, ULTIMATE.start_main_~y~0#1=3}, {ULTIMATE.start_main_~x~0#1=3, ULTIMATE.start_main_~y~0#1=-3}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~y~0#1=-1}] Lambdas: [2, 1, 1] Nus: [1, 0] [2021-11-19 04:31:10,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-19 04:31:10,261 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:31:10,261 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:31:10,261 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:31:10,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:31:10,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:31:10,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:31:10,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:31:10,263 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2021-11-19 04:31:10,263 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:31:10,263 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:31:10,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:10,426 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:31:10,426 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:31:10,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,433 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,433 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:31:10,455 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:31:10,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:31:10,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,546 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,546 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:31:10,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,588 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,590 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:31:10,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,610 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:31:10,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,640 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:31:10,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,662 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:31:10,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,689 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:31:10,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:31:10,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:31:10,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,729 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:31:10,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:31:10,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:10,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:10,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:10,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:10,796 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:10,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:31:10,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:31:10,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:31:11,502 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:31:11,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-19 04:31:11,508 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:31:11,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:31:11,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:31:11,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:31:11,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:31:11,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:31:11,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:31:11,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: Singapore-2.c_Iteration1_Lasso [2021-11-19 04:31:11,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:31:11,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:31:11,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:31:11,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:31:11,620 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:31:11,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,624 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:11,630 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 [2021-11-19 04:31:11,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:11,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:11,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:11,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:11,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:31:11,650 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:31:11,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:31:11,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:11,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:11,696 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,697 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:11,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-19 04:31:11,708 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 [2021-11-19 04:31:11,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:11,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:31:11,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:11,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:11,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:11,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:31:11,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:31:11,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:11,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:11,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,750 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-19 04:31:11,754 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 [2021-11-19 04:31:11,763 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:11,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:11,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:11,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:11,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:31:11,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:31:11,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:11,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-11-19 04:31:11,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,843 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:11,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-19 04:31:11,849 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 [2021-11-19 04:31:11,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:11,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:31:11,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:11,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:11,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:11,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:31:11,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:31:11,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:11,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:11,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,922 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:11,930 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 [2021-11-19 04:31:11,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:11,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:11,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:11,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:11,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:31:11,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:31:11,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-19 04:31:11,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:11,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:11,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:11,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:11,999 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:12,005 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 [2021-11-19 04:31:12,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-19 04:31:12,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:12,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:31:12,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:12,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:12,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:31:12,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:31:12,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:31:12,033 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:12,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:12,064 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:31:12,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:12,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:12,065 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:12,070 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 [2021-11-19 04:31:12,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-19 04:31:12,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:12,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:12,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:12,079 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:31:12,083 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-19 04:31:12,083 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-19 04:31:12,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:12,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:12,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:12,158 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:12,170 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 [2021-11-19 04:31:12,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:12,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:31:12,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:12,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:12,181 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:31:12,182 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:31:12,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:31:12,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-19 04:31:12,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:31:12,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:12,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:12,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:12,237 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:12,243 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 [2021-11-19 04:31:12,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-19 04:31:12,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:31:12,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:31:12,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:31:12,253 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:31:12,264 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-19 04:31:12,265 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-19 04:31:12,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:31:12,317 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-11-19 04:31:12,317 INFO L444 ModelExtractionUtils]: 3 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-11-19 04:31:12,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:12,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:12,321 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:12,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-11-19 04:31:12,367 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:31:12,395 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 3. [2021-11-19 04:31:12,395 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:31:12,396 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 3*ULTIMATE.start_main_~x~0#1 + 2*ULTIMATE.start_main_~y~0#1 f1 = 2*ULTIMATE.start_main_~x~0#1 Supporting invariants [-1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~x~0#1 >= 0] [2021-11-19 04:31:12,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:12,467 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-11-19 04:31:12,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:12,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:31:12,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:31:12,601 WARN L261 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 04:31:12,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:31:12,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:31:12,642 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-19 04:31:12,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-19 04:31:12,736 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 28 transitions. Complement of second has 5 states. [2021-11-19 04:31:12,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:31:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-11-19 04:31:12,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-11-19 04:31:12,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 1 letters. [2021-11-19 04:31:12,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:31:12,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 6 letters. Loop has 1 letters. [2021-11-19 04:31:12,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:31:12,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-19 04:31:12,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:31:12,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-11-19 04:31:12,753 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:31:12,756 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-11-19 04:31:12,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:31:12,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:31:12,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:31:12,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:31:12,759 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:31:12,759 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:31:12,759 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:31:12,759 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:31:12,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:31:12,759 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:31:12,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:31:12,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:31:12 BoogieIcfgContainer [2021-11-19 04:31:12,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:31:12,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:31:12,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:31:12,769 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:31:12,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:09" (3/4) ... [2021-11-19 04:31:12,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:31:12,774 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:31:12,775 INFO L158 Benchmark]: Toolchain (without parser) took 4293.63ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 56.1MB in the beginning and 80.0MB in the end (delta: -23.9MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-19 04:31:12,776 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:31:12,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.65ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 56.1MB in the beginning and 106.1MB in the end (delta: -50.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:31:12,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.68ms. Allocated memory is still 127.9MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:31:12,778 INFO L158 Benchmark]: Boogie Preprocessor took 34.17ms. Allocated memory is still 127.9MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:31:12,779 INFO L158 Benchmark]: RCFGBuilder took 335.00ms. Allocated memory is still 127.9MB. Free memory was 103.2MB in the beginning and 94.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:31:12,779 INFO L158 Benchmark]: BuchiAutomizer took 3570.22ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 80.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-11-19 04:31:12,780 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 127.9MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:31:12,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 90.2MB. Free memory was 62.6MB in the beginning and 62.6MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.65ms. Allocated memory was 90.2MB in the beginning and 127.9MB in the end (delta: 37.7MB). Free memory was 56.1MB in the beginning and 106.1MB in the end (delta: -50.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.68ms. Allocated memory is still 127.9MB. Free memory was 106.1MB in the beginning and 104.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.17ms. Allocated memory is still 127.9MB. Free memory was 104.5MB in the beginning and 103.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.00ms. Allocated memory is still 127.9MB. Free memory was 103.2MB in the beginning and 94.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3570.22ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 80.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 127.9MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if 2 * y + 3 * x > 0 then 1 else 0), (if 2 * y + 3 * x > 0 then 2 * y + 3 * x else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 14 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital27 mio100 ax148 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf94 smp100 dnf100 smp100 tf102 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:31:12,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-11-19 04:31:13,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_870488e8-9795-4ed5-b0d3-aeb6bca4699e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE