./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8 --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 fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:57:12,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:57:12,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:57:12,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:57:12,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:57:12,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:57:12,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:57:12,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:57:12,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:57:12,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:57:12,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:57:12,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:57:12,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:57:12,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:57:12,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:57:12,064 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:57:12,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:57:12,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:57:12,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:57:12,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:57:12,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:57:12,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:57:12,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:57:12,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:57:12,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:57:12,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:57:12,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:57:12,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:57:12,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:57:12,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:57:12,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:57:12,095 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:57:12,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:57:12,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:57:12,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:57:12,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:57:12,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:57:12,098 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:57:12,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:57:12,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:57:12,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:57:12,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 16:57:12,116 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:57:12,116 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:57:12,116 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:57:12,116 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:57:12,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:57:12,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:57:12,125 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:57:12,125 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 16:57:12,126 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 16:57:12,126 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 16:57:12,127 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 16:57:12,127 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 16:57:12,128 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 16:57:12,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:57:12,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:57:12,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:57:12,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:57:12,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 16:57:12,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:57:12,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:57:12,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:57:12,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:57:12,131 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 16:57:12,131 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_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2 [2022-12-13 16:57:12,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:57:12,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:57:12,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:57:12,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:57:12,331 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:57:12,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2022-12-13 16:57:14,989 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:57:15,104 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:57:15,104 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2022-12-13 16:57:15,108 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/data/1cf362335/5bc3a00172424e6eb4608be1ded773b0/FLAGf28017c0d [2022-12-13 16:57:15,121 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/data/1cf362335/5bc3a00172424e6eb4608be1ded773b0 [2022-12-13 16:57:15,123 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:57:15,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:57:15,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:57:15,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:57:15,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:57:15,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ea251e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15, skipping insertion in model container [2022-12-13 16:57:15,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:57:15,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:57:15,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:57:15,268 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:57:15,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:57:15,288 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:57:15,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15 WrapperNode [2022-12-13 16:57:15,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:57:15,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:57:15,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:57:15,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:57:15,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,299 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,311 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2022-12-13 16:57:15,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:57:15,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:57:15,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:57:15,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:57:15,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:57:15,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:57:15,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:57:15,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:57:15,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (1/1) ... [2022-12-13 16:57:15,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:15,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:15,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:15,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 16:57:15,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:57:15,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:57:15,447 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:57:15,449 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:57:15,499 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:57:15,504 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:57:15,504 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:57:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:15 BoogieIcfgContainer [2022-12-13 16:57:15,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:57:15,506 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 16:57:15,506 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 16:57:15,509 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 16:57:15,509 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:57:15,510 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 04:57:15" (1/3) ... [2022-12-13 16:57:15,510 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@269c655d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 04:57:15, skipping insertion in model container [2022-12-13 16:57:15,510 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:57:15,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:57:15" (2/3) ... [2022-12-13 16:57:15,511 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@269c655d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 04:57:15, skipping insertion in model container [2022-12-13 16:57:15,511 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 16:57:15,511 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:15" (3/3) ... [2022-12-13 16:57:15,512 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2022-12-13 16:57:15,555 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 16:57:15,555 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 16:57:15,555 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 16:57:15,555 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 16:57:15,555 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 16:57:15,556 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 16:57:15,556 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 16:57:15,556 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 16:57:15,559 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) [2022-12-13 16:57:15,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 16:57:15,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:15,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:15,579 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 16:57:15,579 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:15,579 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 16:57:15,579 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) [2022-12-13 16:57:15,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 16:57:15,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:15,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:15,580 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 16:57:15,581 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:15,587 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L27-2true [2022-12-13 16:57:15,587 INFO L750 eck$LassoCheckResult]: Loop: 10#L27-2true assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 8#L19true assume !(main_~x~0#1 > 0); 5#L27true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 10#L27-2true [2022-12-13 16:57:15,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 16:57:15,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:15,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314212667] [2022-12-13 16:57:15,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:15,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,655 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:15,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:15,672 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times [2022-12-13 16:57:15,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:15,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767934315] [2022-12-13 16:57:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:15,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,679 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:15,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:15,685 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times [2022-12-13 16:57:15,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:15,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083575235] [2022-12-13 16:57:15,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:15,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:15,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:15,761 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:15,761 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:15,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:15,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:15,762 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:15,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:15,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:15,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:15,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2022-12-13 16:57:15,762 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:15,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:15,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,790 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,793 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,797 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,800 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,868 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:15,868 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:15,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:15,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:15,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:15,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 16:57:15,874 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:15,874 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:15,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:15,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:15,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:15,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:15,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 16:57:15,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:15,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:15,919 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:15,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 16:57:15,922 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:15,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:15,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:15,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:15,923 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:15,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:15,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:15,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:15,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop [2022-12-13 16:57:15,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:15,924 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:15,926 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,936 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:15,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:16,003 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:16,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,005 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 16:57:16,008 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 [2022-12-13 16:57:16,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:16,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:16,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:16,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:16,030 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 16:57:16,030 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 16:57:16,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 16:57:16,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:16,059 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:16,059 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:16,060 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 16:57:16,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 16:57:16,065 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:16,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:16,093 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:16,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:16,105 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:16,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:16,146 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:16,148 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:16,185 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 8 states. [2022-12-13 16:57:16,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:57:16,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-12-13 16:57:16,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2022-12-13 16:57:16,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 16:57:16,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2022-12-13 16:57:16,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2022-12-13 16:57:16,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 16:57:16,203 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 16:57:16,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 17 states and 26 transitions. [2022-12-13 16:57:16,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-12-13 16:57:16,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-12-13 16:57:16,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions. [2022-12-13 16:57:16,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:16,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2022-12-13 16:57:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions. [2022-12-13 16:57:16,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2022-12-13 16:57:16,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 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) [2022-12-13 16:57:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions. [2022-12-13 16:57:16,230 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-12-13 16:57:16,230 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions. [2022-12-13 16:57:16,231 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 16:57:16,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions. [2022-12-13 16:57:16,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 16:57:16,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:16,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:16,231 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 16:57:16,231 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:16,231 INFO L748 eck$LassoCheckResult]: Stem: 90#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 91#L-1 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_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#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; 92#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 100#L19 [2022-12-13 16:57:16,232 INFO L750 eck$LassoCheckResult]: Loop: 100#L19 assume main_~x~0#1 > 0; 101#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 99#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 100#L19 [2022-12-13 16:57:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,232 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 16:57:16,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468214696] [2022-12-13 16:57:16,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,238 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times [2022-12-13 16:57:16,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835186440] [2022-12-13 16:57:16,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times [2022-12-13 16:57:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031098531] [2022-12-13 16:57:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,253 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,279 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:16,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:16,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:16,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:16,280 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:16,280 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,280 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:16,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:16,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2022-12-13 16:57:16,280 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:16,280 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:16,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,284 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,286 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,289 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:16,320 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:16,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,321 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 16:57:16,323 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,342 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,343 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 16:57:16,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 16:57:16,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,367 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 16:57:16,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,372 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 16:57:16,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,393 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,393 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:16,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,397 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 16:57:16,399 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,399 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,411 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 16:57:16,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 16:57:16,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 16:57:16,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,431 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 16:57:16,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:16,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,502 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:16,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:16,506 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:16,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:16,506 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:16,506 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:16,506 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:16,506 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,506 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:16,506 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:16,506 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop [2022-12-13 16:57:16,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:16,507 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:16,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,510 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,513 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,515 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,555 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:16,556 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:16,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,557 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 16:57:16,559 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 [2022-12-13 16:57:16,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 16:57:16,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 16:57:16,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:16,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 16:57:16,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,580 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 16:57:16,582 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 [2022-12-13 16:57:16,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:16,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:16,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:16,595 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:16,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 16:57:16,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,599 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 16:57:16,601 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 [2022-12-13 16:57:16,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,614 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 16:57:16,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 16:57:16,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:16,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 16:57:16,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,623 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 16:57:16,625 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 [2022-12-13 16:57:16,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:16,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:16,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:16,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:16,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:16,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,642 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 16:57:16,644 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 [2022-12-13 16:57:16,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:16,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:16,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:16,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:16,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:16,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:16,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:16,657 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:16,661 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 16:57:16,662 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 16:57:16,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,663 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 16:57:16,665 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:16,665 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:16,665 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:16,665 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 16:57:16,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 16:57:16,669 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:16,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:16,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:16,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:16,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:16,715 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:16,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-12-13 16:57:16,735 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 43 states and 71 transitions. Complement of second has 7 states. [2022-12-13 16:57:16,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2022-12-13 16:57:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-13 16:57:16,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2022-12-13 16:57:16,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 16:57:16,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 16:57:16,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:16,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions. [2022-12-13 16:57:16,739 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 16:57:16,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions. [2022-12-13 16:57:16,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2022-12-13 16:57:16,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-12-13 16:57:16,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions. [2022-12-13 16:57:16,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:16,741 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions. [2022-12-13 16:57:16,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions. [2022-12-13 16:57:16,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-12-13 16:57:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.606060606060606) internal successors, (53), 32 states have internal predecessors, (53), 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) [2022-12-13 16:57:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions. [2022-12-13 16:57:16,744 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions. [2022-12-13 16:57:16,744 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions. [2022-12-13 16:57:16,744 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 16:57:16,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions. [2022-12-13 16:57:16,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2022-12-13 16:57:16,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:16,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:16,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 16:57:16,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:16,746 INFO L748 eck$LassoCheckResult]: Stem: 190#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 191#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 192#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 207#L19 assume main_~x~0#1 > 0; 194#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 197#L27-2 [2022-12-13 16:57:16,746 INFO L750 eck$LassoCheckResult]: Loop: 197#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 214#L19 assume main_~x~0#1 > 0; 212#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 197#L27-2 [2022-12-13 16:57:16,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,746 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times [2022-12-13 16:57:16,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149443064] [2022-12-13 16:57:16,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times [2022-12-13 16:57:16,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930843759] [2022-12-13 16:57:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times [2022-12-13 16:57:16,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:16,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829708440] [2022-12-13 16:57:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:16,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:16,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:16,803 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:16,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:16,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:16,803 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:16,803 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:16,803 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,803 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:16,803 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:16,803 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2022-12-13 16:57:16,803 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:16,804 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:16,805 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,809 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,814 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:16,856 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:16,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,857 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 16:57:16,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,859 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,877 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=4, ULTIMATE.start_main_~y~0#1=4} Honda state: {ULTIMATE.start_main_#t~nondet3#1=4, ULTIMATE.start_main_~y~0#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:16,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,881 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 16:57:16,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,884 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,901 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2022-12-13 16:57:16,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,905 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 16:57:16,907 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,925 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:16,925 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:16,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-12-13 16:57:16,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,929 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 16:57:16,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:16,931 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 16:57:16,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:16,946 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:16,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 16:57:16,948 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:16,948 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:16,967 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:16,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:16,970 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:16,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:16,971 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:16,971 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:16,971 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:16,971 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:16,971 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:16,971 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:16,971 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop [2022-12-13 16:57:16,971 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:16,971 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:16,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:16,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,024 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:17,025 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:17,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,026 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 16:57:17,028 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 [2022-12-13 16:57:17,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:17,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:17,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:17,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:17,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:17,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:17,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:17,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:17,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 16:57:17,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,045 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-12-13 16:57:17,047 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 [2022-12-13 16:57:17,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:17,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:17,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:17,058 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-12-13 16:57:17,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:17,059 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-12-13 16:57:17,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:17,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:17,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2022-12-13 16:57:17,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,064 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 16:57:17,066 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 [2022-12-13 16:57:17,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:17,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:17,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:17,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:17,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:17,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:17,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:17,079 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:17,081 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 16:57:17,081 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 16:57:17,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,082 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 16:57:17,084 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:17,084 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:17,084 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:17,084 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 16:57:17,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 16:57:17,088 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:17,121 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:17,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 16:57:17,143 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 49 states and 78 transitions. Complement of second has 8 states. [2022-12-13 16:57:17,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 16:57:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2022-12-13 16:57:17,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2022-12-13 16:57:17,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters. [2022-12-13 16:57:17,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters. [2022-12-13 16:57:17,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions. [2022-12-13 16:57:17,147 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-12-13 16:57:17,148 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions. [2022-12-13 16:57:17,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2022-12-13 16:57:17,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 16:57:17,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions. [2022-12-13 16:57:17,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:17,149 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions. [2022-12-13 16:57:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions. [2022-12-13 16:57:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2022-12-13 16:57:17,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 41 states have internal predecessors, (66), 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) [2022-12-13 16:57:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions. [2022-12-13 16:57:17,152 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions. [2022-12-13 16:57:17,152 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions. [2022-12-13 16:57:17,152 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 16:57:17,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions. [2022-12-13 16:57:17,154 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2022-12-13 16:57:17,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:17,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:17,154 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2022-12-13 16:57:17,154 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:17,154 INFO L748 eck$LassoCheckResult]: Stem: 320#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 321#L-1 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_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#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; 322#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 344#L19 assume !(main_~x~0#1 > 0); 336#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 335#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 331#L19 assume !(main_~x~0#1 > 0); 333#L27 [2022-12-13 16:57:17,155 INFO L750 eck$LassoCheckResult]: Loop: 333#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 357#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 356#L19 assume !(main_~x~0#1 > 0); 333#L27 [2022-12-13 16:57:17,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times [2022-12-13 16:57:17,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:17,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204208705] [2022-12-13 16:57:17,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:17,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times [2022-12-13 16:57:17,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:17,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326205101] [2022-12-13 16:57:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:17,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:17,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times [2022-12-13 16:57:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345317139] [2022-12-13 16:57:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:17,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 16:57:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:17,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:17,219 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:17,219 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:17,219 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:17,219 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:17,219 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:17,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:17,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:17,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2022-12-13 16:57:17,220 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:17,220 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:17,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,223 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,225 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,265 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:17,265 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,266 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 16:57:17,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,286 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,287 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:17,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,290 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 16:57:17,292 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,292 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,309 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 16:57:17,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,313 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 16:57:17,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-12-13 16:57:17,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,329 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 16:57:17,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:17,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,408 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:17,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-12-13 16:57:17,412 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:17,412 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:17,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:17,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:17,412 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:17,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:17,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:17,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop [2022-12-13 16:57:17,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:17,412 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:17,413 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,420 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,458 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:17,458 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:17,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,459 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 16:57:17,461 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 [2022-12-13 16:57:17,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:17,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:17,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:17,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:17,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:17,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:17,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:17,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:17,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-12-13 16:57:17,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,478 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 16:57:17,480 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 [2022-12-13 16:57:17,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:17,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:17,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:17,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:17,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:17,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:17,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:17,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:17,496 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 16:57:17,496 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 16:57:17,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,497 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 16:57:17,499 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:17,499 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:17,499 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:17,499 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2022-12-13 16:57:17,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:17,502 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:17,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,520 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:17,529 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:17,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 108 states and 160 transitions. Complement of second has 7 states. [2022-12-13 16:57:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 16:57:17,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 16:57:17,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,557 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 16:57:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,576 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:17,585 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:17,585 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,606 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 108 states and 160 transitions. Complement of second has 7 states. [2022-12-13 16:57:17,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 16:57:17,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 16:57:17,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,608 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 16:57:17,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,626 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:17,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:17,633 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:17,634 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 109 states and 163 transitions. Complement of second has 8 states. [2022-12-13 16:57:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:17,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-12-13 16:57:17,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2022-12-13 16:57:17,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 16:57:17,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters. [2022-12-13 16:57:17,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters. [2022-12-13 16:57:17,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:17,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions. [2022-12-13 16:57:17,658 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27 [2022-12-13 16:57:17,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions. [2022-12-13 16:57:17,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2022-12-13 16:57:17,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2022-12-13 16:57:17,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions. [2022-12-13 16:57:17,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:17,660 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions. [2022-12-13 16:57:17,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions. [2022-12-13 16:57:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80. [2022-12-13 16:57:17,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 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) [2022-12-13 16:57:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions. [2022-12-13 16:57:17,664 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions. [2022-12-13 16:57:17,664 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions. [2022-12-13 16:57:17,664 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 16:57:17,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions. [2022-12-13 16:57:17,665 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22 [2022-12-13 16:57:17,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:17,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:17,665 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2022-12-13 16:57:17,665 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:17,665 INFO L748 eck$LassoCheckResult]: Stem: 818#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 819#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 824#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 851#L19 assume main_~x~0#1 > 0; 865#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 864#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 831#L19 assume !(main_~x~0#1 > 0); 832#L27 [2022-12-13 16:57:17,665 INFO L750 eck$LassoCheckResult]: Loop: 832#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 815#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 859#L19 assume !(main_~x~0#1 > 0); 832#L27 [2022-12-13 16:57:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times [2022-12-13 16:57:17,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:17,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465570305] [2022-12-13 16:57:17,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:17,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:17,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:57:17,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465570305] [2022-12-13 16:57:17,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465570305] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:57:17,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:57:17,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:57:17,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827314709] [2022-12-13 16:57:17,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:57:17,716 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 16:57:17,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:17,717 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times [2022-12-13 16:57:17,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:17,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499930201] [2022-12-13 16:57:17,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:17,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,720 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:17,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:17,744 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:17,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:17,745 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:17,745 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:17,745 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:17,745 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,745 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:17,745 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:17,745 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2022-12-13 16:57:17,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:17,745 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:17,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,753 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,754 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,756 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,795 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:17,795 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:17,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,796 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 16:57:17,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,818 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,818 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_#t~nondet5#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_#t~nondet5#1=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2022-12-13 16:57:17,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,821 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 16:57:17,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,835 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,835 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 16:57:17,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,838 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 16:57:17,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,840 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:17,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,860 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 16:57:17,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,879 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:17,879 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:17,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-12-13 16:57:17,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,883 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 16:57:17,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:17,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 16:57:17,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:17,898 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:17,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-12-13 16:57:17,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:17,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:17,966 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:17,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-12-13 16:57:17,969 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:17,969 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:17,969 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:17,969 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:17,969 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:17,969 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:17,970 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:17,970 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:17,970 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop [2022-12-13 16:57:17,970 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:17,970 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:17,970 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,974 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,975 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:17,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:18,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:18,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,012 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-12-13 16:57:18,014 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 [2022-12-13 16:57:18,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:18,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:18,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:18,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:18,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,031 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-12-13 16:57:18,033 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 [2022-12-13 16:57:18,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,043 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:18,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,044 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:18,044 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:18,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:18,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2022-12-13 16:57:18,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,049 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-12-13 16:57:18,051 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 [2022-12-13 16:57:18,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 16:57:18,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 16:57:18,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:18,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,070 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-12-13 16:57:18,072 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 [2022-12-13 16:57:18,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:18,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:18,083 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:18,085 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:18,088 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 16:57:18,088 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 16:57:18,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,089 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-12-13 16:57:18,091 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:18,091 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:18,091 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:18,091 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 16:57:18,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-12-13 16:57:18,093 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:18,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:18,129 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 16:57:18,130 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-12-13 16:57:18,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-12-13 16:57:18,152 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 196 states and 321 transitions. Complement of second has 7 states. [2022-12-13 16:57:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:18,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-12-13 16:57:18,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2022-12-13 16:57:18,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2022-12-13 16:57:18,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2022-12-13 16:57:18,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,155 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions. [2022-12-13 16:57:18,158 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2022-12-13 16:57:18,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions. [2022-12-13 16:57:18,159 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2022-12-13 16:57:18,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-12-13 16:57:18,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions. [2022-12-13 16:57:18,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:18,160 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions. [2022-12-13 16:57:18,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions. [2022-12-13 16:57:18,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119. [2022-12-13 16:57:18,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.638655462184874) internal successors, (195), 118 states have internal predecessors, (195), 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) [2022-12-13 16:57:18,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions. [2022-12-13 16:57:18,168 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions. [2022-12-13 16:57:18,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:57:18,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:57:18,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:57:18,171 INFO L87 Difference]: Start difference. First operand 119 states and 195 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-12-13 16:57:18,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:57:18,184 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2022-12-13 16:57:18,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions. [2022-12-13 16:57:18,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 16:57:18,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions. [2022-12-13 16:57:18,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-12-13 16:57:18,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-12-13 16:57:18,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions. [2022-12-13 16:57:18,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 16:57:18,185 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions. [2022-12-13 16:57:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions. [2022-12-13 16:57:18,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2022-12-13 16:57:18,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 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) [2022-12-13 16:57:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions. [2022-12-13 16:57:18,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions. [2022-12-13 16:57:18,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:57:18,187 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions. [2022-12-13 16:57:18,188 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 16:57:18,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions. [2022-12-13 16:57:18,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 16:57:18,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 16:57:18,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 16:57:18,188 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-12-13 16:57:18,188 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 16:57:18,188 INFO L748 eck$LassoCheckResult]: Stem: 1348#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1349#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1354#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1365#L19 assume main_~x~0#1 > 0; 1362#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1383#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1358#L19 [2022-12-13 16:57:18,188 INFO L750 eck$LassoCheckResult]: Loop: 1358#L19 assume main_~x~0#1 > 0; 1355#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 1356#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1358#L19 [2022-12-13 16:57:18,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,189 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times [2022-12-13 16:57:18,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:18,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409963959] [2022-12-13 16:57:18,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:18,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,195 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:18,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,195 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times [2022-12-13 16:57:18,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:18,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392818879] [2022-12-13 16:57:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:18,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:18,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,200 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times [2022-12-13 16:57:18,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:57:18,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552951057] [2022-12-13 16:57:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:57:18,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:57:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:57:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:57:18,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:57:18,222 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:18,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:18,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:18,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:18,223 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 16:57:18,223 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:18,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:18,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2022-12-13 16:57:18,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:18,223 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:18,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,232 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,255 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:18,255 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 16:57:18,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,256 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-12-13 16:57:18,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:18,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:18,274 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:18,274 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:18,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,278 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-12-13 16:57:18,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:18,281 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:18,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:18,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:18,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-12-13 16:57:18,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,301 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-12-13 16:57:18,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:18,303 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:18,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 16:57:18,320 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 16:57:18,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,323 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-12-13 16:57:18,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 16:57:18,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:18,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,340 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-12-13 16:57:18,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 16:57:18,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 16:57:18,410 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 16:57:18,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-12-13 16:57:18,413 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 16:57:18,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 16:57:18,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 16:57:18,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 16:57:18,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 16:57:18,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 16:57:18,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 16:57:18,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop [2022-12-13 16:57:18,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 16:57:18,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 16:57:18,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,418 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 16:57:18,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 16:57:18,443 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 16:57:18,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,444 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-12-13 16:57:18,446 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 [2022-12-13 16:57:18,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:18,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:18,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:18,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:18,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2022-12-13 16:57:18,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,460 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-12-13 16:57:18,463 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 [2022-12-13 16:57:18,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 16:57:18,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 16:57:18,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 16:57:18,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2022-12-13 16:57:18,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,482 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-12-13 16:57:18,484 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 [2022-12-13 16:57:18,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 16:57:18,494 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 16:57:18,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 16:57:18,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 16:57:18,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 16:57:18,495 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 16:57:18,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 16:57:18,497 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 16:57:18,498 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 16:57:18,499 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 16:57:18,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 16:57:18,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:57:18,500 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 16:57:18,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-12-13 16:57:18,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 16:57:18,501 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 16:57:18,502 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 16:57:18,502 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2022-12-13 16:57:18,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-12-13 16:57:18,504 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 16:57:18,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:18,530 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:18,531 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,544 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 77 states and 124 transitions. Complement of second has 7 states. [2022-12-13 16:57:18,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-13 16:57:18,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 16:57:18,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,546 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 16:57:18,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:18,570 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:18,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,582 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 77 states and 124 transitions. Complement of second has 7 states. [2022-12-13 16:57:18,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-12-13 16:57:18,583 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 16:57:18,584 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,584 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 16:57:18,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:57:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:57:18,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 16:57:18,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:57:18,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:57:18,609 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 16:57:18,609 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,622 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 81 states and 129 transitions. Complement of second has 8 states. [2022-12-13 16:57:18,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 16:57:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2022-12-13 16:57:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-12-13 16:57:18,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 16:57:18,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters. [2022-12-13 16:57:18,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters. [2022-12-13 16:57:18,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 16:57:18,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions. [2022-12-13 16:57:18,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 16:57:18,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 16:57:18,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 16:57:18,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:57:18,625 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 16:57:18,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 16:57:18,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 16:57:18,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 16:57:18,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 04:57:18 BoogieIcfgContainer [2022-12-13 16:57:18,630 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 16:57:18,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:57:18,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:57:18,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:57:18,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:57:15" (3/4) ... [2022-12-13 16:57:18,633 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:57:18,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:57:18,633 INFO L158 Benchmark]: Toolchain (without parser) took 3508.37ms. Allocated memory is still 146.8MB. Free memory was 109.5MB in the beginning and 71.7MB in the end (delta: 37.8MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,633 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:57:18,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.09ms. Allocated memory is still 146.8MB. Free memory was 109.5MB in the beginning and 100.5MB in the end (delta: 9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.61ms. Allocated memory is still 146.8MB. Free memory was 100.5MB in the beginning and 99.0MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,634 INFO L158 Benchmark]: Boogie Preprocessor took 14.00ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 97.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,634 INFO L158 Benchmark]: RCFGBuilder took 179.12ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 89.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,634 INFO L158 Benchmark]: BuchiAutomizer took 3124.15ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 71.7MB in the end (delta: 17.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-12-13 16:57:18,634 INFO L158 Benchmark]: Witness Printer took 2.32ms. Allocated memory is still 146.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:57:18,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 111.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.09ms. Allocated memory is still 146.8MB. Free memory was 109.5MB in the beginning and 100.5MB in the end (delta: 9.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.61ms. Allocated memory is still 146.8MB. Free memory was 100.5MB in the beginning and 99.0MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.00ms. Allocated memory is still 146.8MB. Free memory was 99.0MB in the beginning and 97.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 179.12ms. Allocated memory is still 146.8MB. Free memory was 97.9MB in the beginning and 89.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3124.15ms. Allocated memory is still 146.8MB. Free memory was 89.1MB in the beginning and 71.7MB in the end (delta: 17.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 2.32ms. Allocated memory is still 146.8MB. Free memory is still 71.7MB. 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 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 100 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax161 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp84 dnf100 smp100 tf113 neg98 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 16:57:18,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2022-12-13 16:57:18,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_692957d1-c1c6-47b9-9f09-2e317301f920/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE