./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 b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/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_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD --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
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 22:52:11,665 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 22:52:11,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 22:52:11,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 22:52:11,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 22:52:11,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 22:52:11,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 22:52:11,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 22:52:11,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 22:52:11,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 22:52:11,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 22:52:11,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 22:52:11,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 22:52:11,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 22:52:11,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 22:52:11,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 22:52:11,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 22:52:11,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 22:52:11,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 22:52:11,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 22:52:11,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 22:52:11,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 22:52:11,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 22:52:11,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 22:52:11,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 22:52:11,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 22:52:11,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 22:52:11,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 22:52:11,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 22:52:11,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 22:52:11,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 22:52:11,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 22:52:11,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 22:52:11,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 22:52:11,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 22:52:11,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 22:52:11,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 22:52:11,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 22:52:11,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 22:52:11,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 22:52:11,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 22:52:11,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-10-28 22:52:11,858 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 22:52:11,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 22:52:11,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 22:52:11,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 22:52:11,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 22:52:11,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 22:52:11,862 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 22:52:11,862 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-28 22:52:11,862 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-10-28 22:52:11,863 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-10-28 22:52:11,863 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-10-28 22:52:11,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-10-28 22:52:11,864 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-28 22:52:11,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 22:52:11,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-28 22:52:11,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 22:52:11,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 22:52:11,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-10-28 22:52:11,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-28 22:52:11,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-10-28 22:52:11,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 22:52:11,866 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-10-28 22:52:11,866 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 22:52:11,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-10-28 22:52:11,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 22:52:11,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 22:52:11,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 22:52:11,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 22:52:11,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 22:52:11,869 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-28 22:52:11,870 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_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2
[2021-10-28 22:52:12,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 22:52:12,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 22:52:12,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 22:52:12,264 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 22:52:12,265 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 22:52:12,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2021-10-28 22:52:12,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/data/628f4a05a/a0f8bcfb43b948c28125072ee1921017/FLAG2e38b6ee6
[2021-10-28 22:52:12,984 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 22:52:12,984 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2021-10-28 22:52:12,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/data/628f4a05a/a0f8bcfb43b948c28125072ee1921017/FLAG2e38b6ee6
[2021-10-28 22:52:13,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/data/628f4a05a/a0f8bcfb43b948c28125072ee1921017
[2021-10-28 22:52:13,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 22:52:13,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 22:52:13,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 22:52:13,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 22:52:13,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 22:52:13,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adaeaa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13, skipping insertion in model container
[2021-10-28 22:52:13,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 22:52:13,389 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 22:52:13,570 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:52:13,574 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 22:52:13,630 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 22:52:13,644 INFO L208 MainTranslator]: Completed translation
[2021-10-28 22:52:13,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13 WrapperNode
[2021-10-28 22:52:13,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 22:52:13,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 22:52:13,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 22:52:13,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 22:52:13,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 22:52:13,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 22:52:13,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 22:52:13,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 22:52:13,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 22:52:13,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 22:52:13,711 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 22:52:13,712 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 22:52:13,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (1/1) ...
[2021-10-28 22:52:13,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:13,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:13,759 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:13,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-28 22:52:13,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 22:52:13,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 22:52:14,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 22:52:14,010 INFO L299 CfgBuilder]: Removed 5 assume(true) statements.
[2021-10-28 22:52:14,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:14 BoogieIcfgContainer
[2021-10-28 22:52:14,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 22:52:14,016 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-28 22:52:14,016 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-10-28 22:52:14,020 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-10-28 22:52:14,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 22:52:14,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 10:52:13" (1/3) ...
[2021-10-28 22:52:14,024 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@572b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:52:14, skipping insertion in model container
[2021-10-28 22:52:14,024 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 22:52:14,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:52:13" (2/3) ...
[2021-10-28 22:52:14,025 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@572b4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 10:52:14, skipping insertion in model container
[2021-10-28 22:52:14,025 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-28 22:52:14,025 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:14" (3/3) ...
[2021-10-28 22:52:14,027 INFO L389 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c
[2021-10-28 22:52:14,107 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-10-28 22:52:14,107 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-10-28 22:52:14,107 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-28 22:52:14,107 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-28 22:52:14,107 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-28 22:52:14,108 INFO L364 BuchiCegarLoop]: Difference is false
[2021-10-28 22:52:14,108 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-28 22:52:14,108 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-28 22:52:14,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:14,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2021-10-28 22:52:14,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:14,146 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:14,156 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-28 22:52:14,156 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:14,157 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-10-28 22:52:14,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:14,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2021-10-28 22:52:14,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:14,159 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:14,159 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1]
[2021-10-28 22:52:14,159 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:14,167 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L27-2true
[2021-10-28 22:52:14,168 INFO L793 eck$LassoCheckResult]: Loop: 9#L27-2true assume !!(0 != main_~x~0 && main_~y~0 > 0); 7#L19true assume main_~x~0 > 0; 8#L20true assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 9#L27-2true
[2021-10-28 22:52:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times
[2021-10-28 22:52:14,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:14,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262350754]
[2021-10-28 22:52:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:14,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:14,332 INFO L85 PathProgramCache]: Analyzing trace with hash 39820, now seen corresponding path program 1 times
[2021-10-28 22:52:14,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:14,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148341156]
[2021-10-28 22:52:14,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:14,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,358 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:14,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:14,384 INFO L85 PathProgramCache]: Analyzing trace with hash 963341, now seen corresponding path program 1 times
[2021-10-28 22:52:14,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:14,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486273523]
[2021-10-28 22:52:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:14,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,404 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:14,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:14,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:14,636 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:14,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:14,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:14,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:14,638 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:14,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:14,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:14,639 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:14,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2021-10-28 22:52:14,639 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:14,640 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:14,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:14,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:14,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:14,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:14,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:14,860 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:14,861 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:14,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:14,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:14,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:14,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2021-10-28 22:52:14,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:14,897 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:14,940 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:14,940 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:14,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:14,991 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:14,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:14,993 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:15,000 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:15,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,022 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:15,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:15,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,070 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:15,078 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:15,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,109 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:15,110 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_#t~nondet3=3} Honda state: {ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_#t~nondet3=3} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:15,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,157 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:15,167 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:15,193 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:15,194 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:15,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,237 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:15,253 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:15,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:15,334 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:15,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,389 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:15,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,401 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:15,401 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:15,401 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:15,401 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:15,401 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:15,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:15,402 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:15,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2021-10-28 22:52:15,402 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:15,402 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:15,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:15,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:15,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:15,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:15,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:15,543 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:15,548 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:15,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,569 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:15,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,586 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:15,587 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:15,587 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:15,587 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:15,597 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:15,597 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:15,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:15,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,642 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:15,671 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:15,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:15,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:15,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:15,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:15,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:15,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:15,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,750 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,752 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:15,761 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:15,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:15,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:15,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:15,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:15,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:15,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:15,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:15,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,803 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:15,816 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:15,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:15,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:15,817 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 22:52:15,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:15,818 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 22:52:15,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:15,831 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:15,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,857 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:15,871 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:15,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:15,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:15,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:15,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:15,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:15,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:15,900 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:15,919 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 22:52:15,919 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 22:52:15,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:15,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:15,925 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:15,928 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:15,928 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:15,928 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:15,929 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:15,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2021-10-28 22:52:15,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:15,963 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:15,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:15,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:15,998 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:16,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:16,024 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:16,093 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:16,095 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:16,214 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 45 states and 64 transitions. Complement of second has 8 states.
[2021-10-28 22:52:16,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:16,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions.
[2021-10-28 22:52:16,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 1 letters. Loop has 3 letters.
[2021-10-28 22:52:16,222 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:16,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-28 22:52:16,223 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:16,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 1 letters. Loop has 6 letters.
[2021-10-28 22:52:16,223 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:16,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions.
[2021-10-28 22:52:16,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2021-10-28 22:52:16,237 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 16 states and 24 transitions.
[2021-10-28 22:52:16,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10
[2021-10-28 22:52:16,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11
[2021-10-28 22:52:16,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 24 transitions.
[2021-10-28 22:52:16,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:16,247 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 24 transitions.
[2021-10-28 22:52:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 24 transitions.
[2021-10-28 22:52:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14.
[2021-10-28 22:52:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions.
[2021-10-28 22:52:16,271 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions.
[2021-10-28 22:52:16,271 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 21 transitions.
[2021-10-28 22:52:16,271 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2021-10-28 22:52:16,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions.
[2021-10-28 22:52:16,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2021-10-28 22:52:16,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:16,272 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:16,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-10-28 22:52:16,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:16,273 INFO L791 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 95#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 106#L19 assume !(main_~x~0 > 0); 96#L27
[2021-10-28 22:52:16,273 INFO L793 eck$LassoCheckResult]: Loop: 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 97#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 105#L19 assume !(main_~x~0 > 0); 96#L27
[2021-10-28 22:52:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:16,274 INFO L85 PathProgramCache]: Analyzing trace with hash 31083, now seen corresponding path program 1 times
[2021-10-28 22:52:16,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:16,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011656440]
[2021-10-28 22:52:16,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:16,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,279 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:16,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash 53186, now seen corresponding path program 1 times
[2021-10-28 22:52:16,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:16,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579544764]
[2021-10-28 22:52:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:16,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,292 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,298 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:16,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:16,298 INFO L85 PathProgramCache]: Analyzing trace with hash 926017048, now seen corresponding path program 1 times
[2021-10-28 22:52:16,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:16,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375543347]
[2021-10-28 22:52:16,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:16,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,306 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:16,313 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:16,346 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:16,347 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:16,347 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:16,347 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:16,347 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:16,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:16,348 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:16,348 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2021-10-28 22:52:16,348 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:16,348 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:16,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,422 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:16,423 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:16,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,425 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:16,434 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:16,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,455 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:16,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:16,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,477 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:16,481 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:16,494 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:16,494 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:16,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,518 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:16,524 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:16,538 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:16,539 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:16,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,562 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:16,590 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:16,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,658 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:16,666 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:16,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,769 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:16,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,775 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:16,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:16,775 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:16,775 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:16,775 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:16,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,775 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:16,775 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:16,775 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2021-10-28 22:52:16,775 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:16,775 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:16,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:16,876 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:16,877 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:16,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,878 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:16,896 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:16,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:16,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:16,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:16,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:16,899 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:16,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:16,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:16,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:16,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:16,969 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:16,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2021-10-28 22:52:16,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:16,986 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:16,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:16,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:16,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:16,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:16,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:16,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:17,000 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:17,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0
[2021-10-28 22:52:17,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,044 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:17,098 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:17,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:17,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:17,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:17,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:17,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:17,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:17,139 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:17,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:17,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,199 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:17,216 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:17,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:17,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:17,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:17,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:17,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:17,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:17,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,236 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:17,243 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 22:52:17,243 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 22:52:17,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,245 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,248 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:17,248 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:17,248 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:17,248 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:17,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2021-10-28 22:52:17,278 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:17,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:17,313 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:17,329 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:17,330 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:17,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:17,406 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:17,407 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:17,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 21 transitions. cyclomatic complexity: 10. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 32 states and 50 transitions. Complement of second has 7 states.
[2021-10-28 22:52:17,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:17,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions.
[2021-10-28 22:52:17,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 3 letters.
[2021-10-28 22:52:17,472 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:17,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:17,473 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:17,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 6 letters.
[2021-10-28 22:52:17,474 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:17,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 50 transitions.
[2021-10-28 22:52:17,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14
[2021-10-28 22:52:17,479 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 50 transitions.
[2021-10-28 22:52:17,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18
[2021-10-28 22:52:17,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2021-10-28 22:52:17,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 50 transitions.
[2021-10-28 22:52:17,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:17,483 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 50 transitions.
[2021-10-28 22:52:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 50 transitions.
[2021-10-28 22:52:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30.
[2021-10-28 22:52:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.6) internal successors, (48), 29 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 48 transitions.
[2021-10-28 22:52:17,490 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 48 transitions.
[2021-10-28 22:52:17,490 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 48 transitions.
[2021-10-28 22:52:17,490 INFO L425 BuchiCegarLoop]: ======== Iteration 3============
[2021-10-28 22:52:17,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 48 transitions.
[2021-10-28 22:52:17,491 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14
[2021-10-28 22:52:17,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:17,491 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:17,492 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-10-28 22:52:17,492 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:17,492 INFO L791 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 183#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 200#L19 assume main_~x~0 > 0; 189#L20
[2021-10-28 22:52:17,492 INFO L793 eck$LassoCheckResult]: Loop: 189#L20 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~y~0 := main_~y~0 - 1; 195#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 188#L19 assume main_~x~0 > 0; 189#L20
[2021-10-28 22:52:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:17,493 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times
[2021-10-28 22:52:17,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:17,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270316159]
[2021-10-28 22:52:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:17,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,499 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:17,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:17,510 INFO L85 PathProgramCache]: Analyzing trace with hash 47412, now seen corresponding path program 1 times
[2021-10-28 22:52:17,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:17,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223637444]
[2021-10-28 22:52:17,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:17,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,523 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,528 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:17,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:17,528 INFO L85 PathProgramCache]: Analyzing trace with hash 925772946, now seen corresponding path program 1 times
[2021-10-28 22:52:17,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:17,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841803226]
[2021-10-28 22:52:17,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:17,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,536 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:17,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:17,591 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:17,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:17,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:17,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:17,592 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:17,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:17,592 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:17,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2021-10-28 22:52:17,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:17,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:17,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,664 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:17,664 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:17,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,666 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:17,673 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:17,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:17,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,741 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:17,743 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:17,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:17,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:17,847 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:17,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:17,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:17,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:17,847 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:17,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,848 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:17,848 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:17,848 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2021-10-28 22:52:17,848 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:17,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:17,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:17,952 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:17,953 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:17,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,954 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:17,968 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:17,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:17,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:17,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:17,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:17,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:17,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:17,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2021-10-28 22:52:17,988 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:17,993 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 22:52:17,993 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 22:52:17,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:17,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:17,996 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:17,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:17,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:17,999 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:17,999 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0
Supporting invariants []
[2021-10-28 22:52:18,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,045 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:18,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:18,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:18,077 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:18,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:18,097 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:18,138 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-28 22:52:18,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 48 transitions. cyclomatic complexity: 23 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)
[2021-10-28 22:52:18,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 48 transitions. cyclomatic complexity: 23. 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 96 states and 149 transitions. Complement of second has 7 states.
[2021-10-28 22:52:18,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:18,176 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)
[2021-10-28 22:52:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions.
[2021-10-28 22:52:18,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 3 letters.
[2021-10-28 22:52:18,177 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:18,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:18,178 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:18,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 3 letters. Loop has 6 letters.
[2021-10-28 22:52:18,179 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:18,180 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 149 transitions.
[2021-10-28 22:52:18,184 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20
[2021-10-28 22:52:18,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 83 states and 128 transitions.
[2021-10-28 22:52:18,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36
[2021-10-28 22:52:18,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41
[2021-10-28 22:52:18,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 128 transitions.
[2021-10-28 22:52:18,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:18,200 INFO L681 BuchiCegarLoop]: Abstraction has 83 states and 128 transitions.
[2021-10-28 22:52:18,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 128 transitions.
[2021-10-28 22:52:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78.
[2021-10-28 22:52:18,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.5769230769230769) internal successors, (123), 77 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:18,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 123 transitions.
[2021-10-28 22:52:18,216 INFO L704 BuchiCegarLoop]: Abstraction has 78 states and 123 transitions.
[2021-10-28 22:52:18,216 INFO L587 BuchiCegarLoop]: Abstraction has 78 states and 123 transitions.
[2021-10-28 22:52:18,217 INFO L425 BuchiCegarLoop]: ======== Iteration 4============
[2021-10-28 22:52:18,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 123 transitions.
[2021-10-28 22:52:18,221 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 20
[2021-10-28 22:52:18,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:18,226 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:18,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 22:52:18,227 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:18,227 INFO L791 eck$LassoCheckResult]: Stem: 351#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 352#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 387#L19 assume !(main_~x~0 > 0); 386#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 382#L27-2
[2021-10-28 22:52:18,227 INFO L793 eck$LassoCheckResult]: Loop: 382#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 379#L19 assume !(main_~x~0 > 0); 380#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 382#L27-2
[2021-10-28 22:52:18,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:18,228 INFO L85 PathProgramCache]: Analyzing trace with hash 963599, now seen corresponding path program 1 times
[2021-10-28 22:52:18,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:18,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976039898]
[2021-10-28 22:52:18,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:18,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,248 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,255 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:18,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash 40076, now seen corresponding path program 2 times
[2021-10-28 22:52:18,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:18,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105685891]
[2021-10-28 22:52:18,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:18,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,266 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:18,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:18,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1358182978, now seen corresponding path program 1 times
[2021-10-28 22:52:18,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:18,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093345771]
[2021-10-28 22:52:18,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:18,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,288 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:18,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:18,351 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:18,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:18,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:18,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:18,352 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:18,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,352 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:18,353 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:18,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2021-10-28 22:52:18,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:18,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:18,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,475 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:18,476 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:18,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,481 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:18,485 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:18,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,521 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:18,521 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:18,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,554 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:18,557 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:18,575 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:18,575 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:18,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0
[2021-10-28 22:52:18,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,599 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:18,600 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:18,619 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:18,619 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: []
[2021-10-28 22:52:18,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0
[2021-10-28 22:52:18,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,640 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:18,641 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:18,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,672 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:18,673 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:18,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:18,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,719 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:18,719 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:18,719 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:18,719 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:18,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:18,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:18,720 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:18,720 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2021-10-28 22:52:18,720 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:18,720 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:18,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:18,812 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:18,812 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:18,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,813 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:18,884 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:18,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:18,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:18,885 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 22:52:18,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:18,886 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 22:52:18,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:18,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:18,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,933 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:18,945 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:18,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:18,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:18,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:18,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:18,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:18,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:18,947 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:18,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:18,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:18,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:18,973 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:18,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2021-10-28 22:52:18,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:18,982 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:18,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:18,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:18,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:18,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:18,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:18,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:19,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:19,006 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2021-10-28 22:52:19,006 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 22:52:19,006 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,012 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,015 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:19,015 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:19,015 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:19,015 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:19,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:19,041 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:19,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,062 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,076 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,077 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:19,110 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:19,110 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 123 transitions. cyclomatic complexity: 58 Second operand has 4 states, 4 states have (on average 1.75) 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)
[2021-10-28 22:52:19,137 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 123 transitions. cyclomatic complexity: 58. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 120 states and 193 transitions. Complement of second has 7 states.
[2021-10-28 22:52:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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)
[2021-10-28 22:52:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions.
[2021-10-28 22:52:19,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-28 22:52:19,138 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:19,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:19,139 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:19,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 6 letters.
[2021-10-28 22:52:19,139 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:19,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 193 transitions.
[2021-10-28 22:52:19,143 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 27
[2021-10-28 22:52:19,146 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 118 states and 188 transitions.
[2021-10-28 22:52:19,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49
[2021-10-28 22:52:19,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52
[2021-10-28 22:52:19,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 188 transitions.
[2021-10-28 22:52:19,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:19,147 INFO L681 BuchiCegarLoop]: Abstraction has 118 states and 188 transitions.
[2021-10-28 22:52:19,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 188 transitions.
[2021-10-28 22:52:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114.
[2021-10-28 22:52:19,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.587719298245614) internal successors, (181), 113 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:19,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 181 transitions.
[2021-10-28 22:52:19,159 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 181 transitions.
[2021-10-28 22:52:19,159 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 181 transitions.
[2021-10-28 22:52:19,159 INFO L425 BuchiCegarLoop]: ======== Iteration 5============
[2021-10-28 22:52:19,160 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 181 transitions.
[2021-10-28 22:52:19,162 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 27
[2021-10-28 22:52:19,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:19,162 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:19,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1]
[2021-10-28 22:52:19,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:19,163 INFO L791 eck$LassoCheckResult]: Stem: 594#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 595#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 602#L19 assume main_~x~0 > 0; 603#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 669#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 667#L19 assume main_~x~0 > 0; 658#L20
[2021-10-28 22:52:19,163 INFO L793 eck$LassoCheckResult]: Loop: 658#L20 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;main_~y~0 := main_~y~0 - 1; 659#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 671#L19 assume main_~x~0 > 0; 658#L20
[2021-10-28 22:52:19,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash 925771024, now seen corresponding path program 2 times
[2021-10-28 22:52:19,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:19,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305969112]
[2021-10-28 22:52:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:19,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,170 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,177 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:19,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,178 INFO L85 PathProgramCache]: Analyzing trace with hash 47412, now seen corresponding path program 2 times
[2021-10-28 22:52:19,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:19,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230199671]
[2021-10-28 22:52:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:19,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1659585989, now seen corresponding path program 1 times
[2021-10-28 22:52:19,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:19,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504404413]
[2021-10-28 22:52:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:19,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,200 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:19,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:19,252 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:19,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:19,252 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:19,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:19,252 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:19,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:19,253 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:19,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2021-10-28 22:52:19,253 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:19,253 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:19,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,319 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:19,320 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:19,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,325 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:19,330 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:19,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,361 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:19,361 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:19,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0
[2021-10-28 22:52:19,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,389 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:19,392 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:19,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:19,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,430 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:19,432 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:19,521 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:19,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:19,524 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:19,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:19,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:19,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:19,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:19,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:19,525 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:19,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2021-10-28 22:52:19,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:19,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:19,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:19,596 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:19,597 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:19,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,598 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:19,624 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:19,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:19,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:19,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:19,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:19,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:19,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:19,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:19,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:19,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,687 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:19,701 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:19,701 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:19,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:19,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:19,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:19,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:19,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:19,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:19,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 22:52:19,730 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 22:52:19,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:19,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:19,732 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:19,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:19,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:19,737 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:19,737 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0
Supporting invariants []
[2021-10-28 22:52:19,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2021-10-28 22:52:19,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:19,781 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:19,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,811 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,836 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:19,873 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-28 22:52:19,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87 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)
[2021-10-28 22:52:19,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87. 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 196 states and 308 transitions. Complement of second has 7 states.
[2021-10-28 22:52:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:19,923 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)
[2021-10-28 22:52:19,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions.
[2021-10-28 22:52:19,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:19,924 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:19,924 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 22:52:19,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,943 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:19,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:19,965 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:20,008 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-28 22:52:20,009 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87 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)
[2021-10-28 22:52:20,049 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87. 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 180 states and 279 transitions. Complement of second has 7 states.
[2021-10-28 22:52:20,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:20,050 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)
[2021-10-28 22:52:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions.
[2021-10-28 22:52:20,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:20,051 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:20,051 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 22:52:20,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:20,069 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:20,099 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:20,132 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-28 22:52:20,132 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87 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)
[2021-10-28 22:52:20,166 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 114 states and 181 transitions. cyclomatic complexity: 87. 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 312 states and 485 transitions. Complement of second has 9 states.
[2021-10-28 22:52:20,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:20,167 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)
[2021-10-28 22:52:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions.
[2021-10-28 22:52:20,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:20,170 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:20,170 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters.
[2021-10-28 22:52:20,173 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:20,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters.
[2021-10-28 22:52:20,176 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:20,177 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 485 transitions.
[2021-10-28 22:52:20,187 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 62
[2021-10-28 22:52:20,198 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 222 states and 343 transitions.
[2021-10-28 22:52:20,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63
[2021-10-28 22:52:20,199 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77
[2021-10-28 22:52:20,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 222 states and 343 transitions.
[2021-10-28 22:52:20,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:20,199 INFO L681 BuchiCegarLoop]: Abstraction has 222 states and 343 transitions.
[2021-10-28 22:52:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states and 343 transitions.
[2021-10-28 22:52:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 122.
[2021-10-28 22:52:20,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 122 states have (on average 1.6229508196721312) internal successors, (198), 121 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:20,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 198 transitions.
[2021-10-28 22:52:20,218 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 198 transitions.
[2021-10-28 22:52:20,218 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 198 transitions.
[2021-10-28 22:52:20,218 INFO L425 BuchiCegarLoop]: ======== Iteration 6============
[2021-10-28 22:52:20,218 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 198 transitions.
[2021-10-28 22:52:20,220 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 48
[2021-10-28 22:52:20,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:20,220 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:20,220 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 22:52:20,221 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1]
[2021-10-28 22:52:20,221 INFO L791 eck$LassoCheckResult]: Stem: 1524#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1525#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1611#L19 assume !(main_~x~0 > 0); 1595#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 1587#L27-2
[2021-10-28 22:52:20,221 INFO L793 eck$LassoCheckResult]: Loop: 1587#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1627#L19 assume main_~x~0 > 0; 1626#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 1571#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1569#L19 assume !(main_~x~0 > 0); 1570#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 1587#L27-2
[2021-10-28 22:52:20,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 963597, now seen corresponding path program 2 times
[2021-10-28 22:52:20,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:20,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166915809]
[2021-10-28 22:52:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,227 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1186287905, now seen corresponding path program 1 times
[2021-10-28 22:52:20,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:20,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914910251]
[2021-10-28 22:52:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:20,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:52:20,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914910251]
[2021-10-28 22:52:20,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914910251] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 22:52:20,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 22:52:20,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 22:52:20,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418188742]
[2021-10-28 22:52:20,373 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-10-28 22:52:20,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:52:20,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 22:52:20,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-28 22:52:20,378 INFO L87 Difference]: Start difference. First operand 122 states and 198 transitions. cyclomatic complexity: 88 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)
[2021-10-28 22:52:20,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:52:20,400 INFO L93 Difference]: Finished difference Result 69 states and 95 transitions.
[2021-10-28 22:52:20,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 22:52:20,402 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 95 transitions.
[2021-10-28 22:52:20,403 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17
[2021-10-28 22:52:20,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 47 states and 66 transitions.
[2021-10-28 22:52:20,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26
[2021-10-28 22:52:20,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26
[2021-10-28 22:52:20,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 66 transitions.
[2021-10-28 22:52:20,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:20,405 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 66 transitions.
[2021-10-28 22:52:20,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 66 transitions.
[2021-10-28 22:52:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 23.
[2021-10-28 22:52:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 22 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions.
[2021-10-28 22:52:20,407 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions.
[2021-10-28 22:52:20,408 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions.
[2021-10-28 22:52:20,408 INFO L425 BuchiCegarLoop]: ======== Iteration 7============
[2021-10-28 22:52:20,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 34 transitions.
[2021-10-28 22:52:20,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10
[2021-10-28 22:52:20,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:20,408 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:20,409 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 22:52:20,409 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:20,409 INFO L791 eck$LassoCheckResult]: Stem: 1722#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1723#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1742#L19 assume !(main_~x~0 > 0); 1741#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 1733#L27-2
[2021-10-28 22:52:20,409 INFO L793 eck$LassoCheckResult]: Loop: 1733#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1728#L19 assume main_~x~0 > 0; 1729#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 1733#L27-2
[2021-10-28 22:52:20,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,410 INFO L85 PathProgramCache]: Analyzing trace with hash 963597, now seen corresponding path program 3 times
[2021-10-28 22:52:20,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:20,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796248216]
[2021-10-28 22:52:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,416 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash 39820, now seen corresponding path program 2 times
[2021-10-28 22:52:20,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:20,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688421896]
[2021-10-28 22:52:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,426 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:20,429 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:20,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1358242816, now seen corresponding path program 1 times
[2021-10-28 22:52:20,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:20,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129145493]
[2021-10-28 22:52:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:20,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:20,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 22:52:20,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129145493]
[2021-10-28 22:52:20,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129145493] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:52:20,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065278247]
[2021-10-28 22:52:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:20,468 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 22:52:20,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:20,473 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 22:52:20,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process
[2021-10-28 22:52:20,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:20,534 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:20,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065278247] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 22:52:20,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-28 22:52:20,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2021-10-28 22:52:20,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022108108]
[2021-10-28 22:52:20,617 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:20,617 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:20,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:20,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:20,617 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:20,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:20,618 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:20,618 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration7_Loop
[2021-10-28 22:52:20,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:20,618 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:20,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,691 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:20,691 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:20,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:20,692 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:20,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:20,695 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:20,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process
[2021-10-28 22:52:20,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:20,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:20,754 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:20,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:20,759 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:20,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process
[2021-10-28 22:52:20,819 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:20,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:20,824 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:20,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:20,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:20,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:20,824 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:20,824 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,824 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:20,824 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:20,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration7_Loop
[2021-10-28 22:52:20,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:20,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:20,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:20,886 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:20,886 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:20,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:20,888 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:20,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:20,911 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:20,911 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:20,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:20,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:20,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:20,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:20,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:20,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2021-10-28 22:52:20,923 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:20,929 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-28 22:52:20,930 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-10-28 22:52:20,930 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:20,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:20,931 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:20,934 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:20,934 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:20,934 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:20,934 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:20,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2021-10-28 22:52:20,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:20,972 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:20,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:20,991 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:21,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:21,008 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:21,042 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:21,042 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 34 transitions. cyclomatic complexity: 15 Second operand has 4 states, 4 states have (on average 1.75) 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)
[2021-10-28 22:52:21,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 34 transitions. cyclomatic complexity: 15. Second operand has 4 states, 4 states have (on average 1.75) 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) Result 71 states and 100 transitions. Complement of second has 7 states.
[2021-10-28 22:52:21,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) 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)
[2021-10-28 22:52:21,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions.
[2021-10-28 22:52:21,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-28 22:52:21,068 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:21,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:21,069 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:21,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters.
[2021-10-28 22:52:21,069 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:21,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 100 transitions.
[2021-10-28 22:52:21,070 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 20
[2021-10-28 22:52:21,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 49 states and 69 transitions.
[2021-10-28 22:52:21,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28
[2021-10-28 22:52:21,072 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29
[2021-10-28 22:52:21,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 69 transitions.
[2021-10-28 22:52:21,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:21,072 INFO L681 BuchiCegarLoop]: Abstraction has 49 states and 69 transitions.
[2021-10-28 22:52:21,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 69 transitions.
[2021-10-28 22:52:21,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 35.
[2021-10-28 22:52:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions.
[2021-10-28 22:52:21,075 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 50 transitions.
[2021-10-28 22:52:21,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 22:52:21,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 22:52:21,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 22:52:21,076 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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)
[2021-10-28 22:52:21,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 22:52:21,099 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions.
[2021-10-28 22:52:21,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 22:52:21,100 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions.
[2021-10-28 22:52:21,101 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 15
[2021-10-28 22:52:21,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 39 states and 53 transitions.
[2021-10-28 22:52:21,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26
[2021-10-28 22:52:21,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26
[2021-10-28 22:52:21,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 53 transitions.
[2021-10-28 22:52:21,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:21,102 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions.
[2021-10-28 22:52:21,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 53 transitions.
[2021-10-28 22:52:21,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 26.
[2021-10-28 22:52:21,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:21,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions.
[2021-10-28 22:52:21,105 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions.
[2021-10-28 22:52:21,105 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions.
[2021-10-28 22:52:21,105 INFO L425 BuchiCegarLoop]: ======== Iteration 8============
[2021-10-28 22:52:21,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions.
[2021-10-28 22:52:21,106 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12
[2021-10-28 22:52:21,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:21,106 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:21,106 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1]
[2021-10-28 22:52:21,106 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:21,106 INFO L791 eck$LassoCheckResult]: Stem: 1958#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1959#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1977#L19 assume !(main_~x~0 > 0); 1974#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 1976#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1978#L19 assume main_~x~0 > 0; 1972#L20
[2021-10-28 22:52:21,107 INFO L793 eck$LassoCheckResult]: Loop: 1972#L20 assume 0 != main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 1967#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 1973#L19 assume main_~x~0 > 0; 1972#L20
[2021-10-28 22:52:21,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 926018962, now seen corresponding path program 1 times
[2021-10-28 22:52:21,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:21,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734315613]
[2021-10-28 22:52:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:21,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,113 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:21,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:21,119 INFO L85 PathProgramCache]: Analyzing trace with hash 45490, now seen corresponding path program 3 times
[2021-10-28 22:52:21,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:21,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662305575]
[2021-10-28 22:52:21,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:21,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,129 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,140 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash 455970433, now seen corresponding path program 1 times
[2021-10-28 22:52:21,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:21,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241055205]
[2021-10-28 22:52:21,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:21,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,148 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:21,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:21,199 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:21,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:21,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:21,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:21,200 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:21,200 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,200 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:21,200 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:21,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration8_Loop
[2021-10-28 22:52:21,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:21,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:21,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,284 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:21,284 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:21,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,286 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:21,288 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,310 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:21,310 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_#t~nondet3=3} Honda state: {ULTIMATE.start_main_~y~0=3, ULTIMATE.start_main_#t~nondet3=3} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:21,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0
[2021-10-28 22:52:21,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,335 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:21,337 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,353 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:21,353 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:21,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0
[2021-10-28 22:52:21,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,378 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:21,381 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,402 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:21,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:21,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,427 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,428 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:21,429 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,445 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:21,445 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=-1} Honda state: {ULTIMATE.start_main_#t~nondet2=-1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:21,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0
[2021-10-28 22:52:21,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,473 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:21,476 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,544 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,547 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:21,547 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:21,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,682 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:21,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,685 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:21,685 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:21,685 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:21,685 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:21,685 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:21,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:21,686 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:21,686 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration8_Loop
[2021-10-28 22:52:21,686 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:21,686 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:21,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:21,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,826 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:21,826 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:21,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,829 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:21,849 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:21,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:21,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:21,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:21,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,852 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:21,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:21,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:21,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,893 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:21,903 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:21,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:21,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:21,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:21,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:21,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:21,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:21,906 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:21,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:21,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:21,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:21,934 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:21,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process
[2021-10-28 22:52:21,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:21,944 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:21,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:21,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:21,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:21,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:21,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:21,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:22,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,014 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:22,032 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:22,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:22,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:22,033 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 22:52:22,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:22,034 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 22:52:22,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:22,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:22,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,093 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,095 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:22,108 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:22,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:22,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:22,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:22,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:22,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:22,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:22,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,128 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:22,131 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2021-10-28 22:52:22,131 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 22:52:22,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,132 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,134 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:22,134 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:22,135 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:22,135 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:22,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,177 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:22,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:22,197 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:22,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:22,221 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:22,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:22,243 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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)
[2021-10-28 22:52:22,270 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 35 states and 49 transitions. Complement of second has 6 states.
[2021-10-28 22:52:22,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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)
[2021-10-28 22:52:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions.
[2021-10-28 22:52:22,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 3 letters.
[2021-10-28 22:52:22,272 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:22,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 3 letters.
[2021-10-28 22:52:22,272 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:22,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 6 letters.
[2021-10-28 22:52:22,273 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:22,273 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 49 transitions.
[2021-10-28 22:52:22,274 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2021-10-28 22:52:22,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 24 transitions.
[2021-10-28 22:52:22,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13
[2021-10-28 22:52:22,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13
[2021-10-28 22:52:22,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions.
[2021-10-28 22:52:22,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:22,275 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions.
[2021-10-28 22:52:22,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions.
[2021-10-28 22:52:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16.
[2021-10-28 22:52:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions.
[2021-10-28 22:52:22,277 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions.
[2021-10-28 22:52:22,277 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions.
[2021-10-28 22:52:22,278 INFO L425 BuchiCegarLoop]: ======== Iteration 9============
[2021-10-28 22:52:22,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions.
[2021-10-28 22:52:22,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-10-28 22:52:22,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:22,278 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:22,279 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1]
[2021-10-28 22:52:22,279 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:22,279 INFO L791 eck$LassoCheckResult]: Stem: 2069#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 2070#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 2082#L19 assume !(main_~x~0 > 0); 2080#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 2081#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 2083#L19 assume !(main_~x~0 > 0); 2071#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 2072#L27-2
[2021-10-28 22:52:22,280 INFO L793 eck$LassoCheckResult]: Loop: 2072#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 2075#L19 assume !(main_~x~0 > 0); 2076#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~x~0 := 1 + main_~x~0; 2072#L27-2
[2021-10-28 22:52:22,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:22,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1358182976, now seen corresponding path program 2 times
[2021-10-28 22:52:22,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:22,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093217830]
[2021-10-28 22:52:22,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:22,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,302 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:22,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,314 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:22,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:22,318 INFO L85 PathProgramCache]: Analyzing trace with hash 40076, now seen corresponding path program 3 times
[2021-10-28 22:52:22,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:22,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746442016]
[2021-10-28 22:52:22,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:22,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,324 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:22,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1257867885, now seen corresponding path program 2 times
[2021-10-28 22:52:22,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:22,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167137094]
[2021-10-28 22:52:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:22,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,354 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:22,361 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:22,392 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:22,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:22,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:22,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:22,393 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:22,393 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,393 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:22,393 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:22,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration9_Loop
[2021-10-28 22:52:22,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:22,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:22,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,469 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:22,469 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:22,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,470 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,472 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:22,472 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:22,487 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:22,487 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:22,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0
[2021-10-28 22:52:22,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,520 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,522 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:22,522 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:22,538 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:22,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:22,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,563 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:22,565 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:22,580 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:22,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:22,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0
[2021-10-28 22:52:22,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,620 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:22,622 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:22,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0
[2021-10-28 22:52:22,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,656 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:22,658 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:22,697 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:22,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0
[2021-10-28 22:52:22,700 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:22,700 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:22,700 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:22,700 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:22,700 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:22,700 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,700 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:22,700 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:22,700 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration9_Loop
[2021-10-28 22:52:22,700 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:22,700 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:22,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:22,781 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:22,781 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:22,781 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,782 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:22,800 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:22,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:22,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:22,801 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2021-10-28 22:52:22,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:22,802 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2021-10-28 22:52:22,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:22,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:22,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,857 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:22,869 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:22,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:22,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:22,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:22,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:22,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:22,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,892 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:22,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:22,928 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,932 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:22,944 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:22,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:22,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:22,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:22,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:22,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:22,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:22,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process
[2021-10-28 22:52:22,956 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:22,969 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2021-10-28 22:52:22,969 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 22:52:22,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:22,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:22,971 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:22,973 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:22,973 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:22,973 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:22,973 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0
Supporting invariants []
[2021-10-28 22:52:22,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,009 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:23,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,033 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,056 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:23,087 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:23,087 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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)
[2021-10-28 22:52:23,101 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 20 states and 27 transitions. Complement of second has 7 states.
[2021-10-28 22:52:23,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:23,102 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)
[2021-10-28 22:52:23,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions.
[2021-10-28 22:52:23,102 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:23,102 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,102 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 22:52:23,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,122 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,145 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,145 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:23,171 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:23,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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)
[2021-10-28 22:52:23,181 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 20 states and 27 transitions. Complement of second has 7 states.
[2021-10-28 22:52:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:23,182 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)
[2021-10-28 22:52:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions.
[2021-10-28 22:52:23,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:23,182 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,182 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted
[2021-10-28 22:52:23,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,199 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,261 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,262 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:23,300 INFO L152 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
[2021-10-28 22:52:23,300 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 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)
[2021-10-28 22:52:23,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. 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 23 states and 31 transitions. Complement of second has 6 states.
[2021-10-28 22:52:23,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:23,312 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)
[2021-10-28 22:52:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions.
[2021-10-28 22:52:23,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:23,313 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 10 letters. Loop has 3 letters.
[2021-10-28 22:52:23,313 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 6 letters.
[2021-10-28 22:52:23,313 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions.
[2021-10-28 22:52:23,314 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6
[2021-10-28 22:52:23,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 19 states and 25 transitions.
[2021-10-28 22:52:23,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8
[2021-10-28 22:52:23,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10
[2021-10-28 22:52:23,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 25 transitions.
[2021-10-28 22:52:23,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-10-28 22:52:23,315 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions.
[2021-10-28 22:52:23,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 25 transitions.
[2021-10-28 22:52:23,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13.
[2021-10-28 22:52:23,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 22:52:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions.
[2021-10-28 22:52:23,317 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions.
[2021-10-28 22:52:23,317 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions.
[2021-10-28 22:52:23,317 INFO L425 BuchiCegarLoop]: ======== Iteration 10============
[2021-10-28 22:52:23,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions.
[2021-10-28 22:52:23,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6
[2021-10-28 22:52:23,317 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-28 22:52:23,317 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-28 22:52:23,318 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-28 22:52:23,318 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-28 22:52:23,318 INFO L791 eck$LassoCheckResult]: Stem: 2279#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 2280#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 2289#L19 assume !(main_~x~0 > 0); 2287#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 2282#L27-2
[2021-10-28 22:52:23,318 INFO L793 eck$LassoCheckResult]: Loop: 2282#L27-2 assume !!(0 != main_~x~0 && main_~y~0 > 0); 2285#L19 assume !(main_~x~0 > 0); 2281#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 2282#L27-2
[2021-10-28 22:52:23,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash 963599, now seen corresponding path program 3 times
[2021-10-28 22:52:23,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:23,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462802427]
[2021-10-28 22:52:23,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:23,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,324 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash 40078, now seen corresponding path program 1 times
[2021-10-28 22:52:23,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:23,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841661872]
[2021-10-28 22:52:23,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:23,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,332 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:23,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1358182976, now seen corresponding path program 4 times
[2021-10-28 22:52:23,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 22:52:23,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083619194]
[2021-10-28 22:52:23,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 22:52:23,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 22:52:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,342 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-28 22:52:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-28 22:52:23,347 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-28 22:52:23,383 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:23,383 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:23,383 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:23,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:23,384 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-28 22:52:23,384 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,384 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:23,384 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:23,384 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration10_Loop
[2021-10-28 22:52:23,384 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:23,384 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:23,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,466 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:23,466 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-10-28 22:52:23,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,467 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:23,469 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:23,485 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:23,485 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=-1, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_#t~nondet5=-1, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:23,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,509 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:23,510 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:23,524 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-28 22:52:23,524 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-10-28 22:52:23,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,549 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-28 22:52:23,551 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:23,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0
[2021-10-28 22:52:23,587 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,588 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-28 22:52:23,590 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-28 22:52:23,625 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-28 22:52:23,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,628 INFO L210 LassoAnalysis]: Preferences:
[2021-10-28 22:52:23,628 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-28 22:52:23,628 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-28 22:52:23,629 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-28 22:52:23,629 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-28 22:52:23,629 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,629 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-28 22:52:23,629 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-28 22:52:23,629 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration10_Loop
[2021-10-28 22:52:23,629 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-28 22:52:23,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-28 22:52:23,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-28 22:52:23,721 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-10-28 22:52:23,721 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-10-28 22:52:23,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,727 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:23,739 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:23,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:23,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:23,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:23,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:23,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:23,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:23,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:23,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:23,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,789 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:23,801 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:23,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:23,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:23,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:23,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2021-10-28 22:52:23,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2021-10-28 22:52:23,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-10-28 22:52:23,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0
[2021-10-28 22:52:23,848 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,849 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,850 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-10-28 22:52:23,859 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-28 22:52:23,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-28 22:52:23,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-28 22:52:23,859 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-28 22:52:23,859 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-28 22:52:23,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-28 22:52:23,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-28 22:52:23,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-28 22:52:23,870 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2021-10-28 22:52:23,870 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2021-10-28 22:52:23,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-28 22:52:23,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 22:52:23,871 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-28 22:52:23,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process
[2021-10-28 22:52:23,872 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-28 22:52:23,872 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-28 22:52:23,872 INFO L513 LassoAnalysis]: Proved termination.
[2021-10-28 22:52:23,872 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0
Supporting invariants []
[2021-10-28 22:52:23,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0
[2021-10-28 22:52:23,896 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-28 22:52:23,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 22:52:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,911 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 22:52:23,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-28 22:52:23,930 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 22:52:23,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 22:52:23,960 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2021-10-28 22:52:23,960 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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)
[2021-10-28 22:52:23,969 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 21 states and 30 transitions. Complement of second has 4 states.
[2021-10-28 22:52:23,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2021-10-28 22:52:23,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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)
[2021-10-28 22:52:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions.
[2021-10-28 22:52:23,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-28 22:52:23,970 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-28 22:52:23,971 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,971 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 4 letters. Loop has 6 letters.
[2021-10-28 22:52:23,971 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-28 22:52:23,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions.
[2021-10-28 22:52:23,972 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-28 22:52:23,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions.
[2021-10-28 22:52:23,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2021-10-28 22:52:23,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2021-10-28 22:52:23,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2021-10-28 22:52:23,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-28 22:52:23,973 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 22:52:23,973 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 22:52:23,973 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 22:52:23,973 INFO L425 BuchiCegarLoop]: ======== Iteration 11============
[2021-10-28 22:52:23,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2021-10-28 22:52:23,973 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-28 22:52:23,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2021-10-28 22:52:23,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 10:52:23 BoogieIcfgContainer
[2021-10-28 22:52:23,979 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-28 22:52:23,980 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 22:52:23,980 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 22:52:23,980 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 22:52:23,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:52:14" (3/4) ...
[2021-10-28 22:52:23,983 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-10-28 22:52:23,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 22:52:23,985 INFO L168 Benchmark]: Toolchain (without parser) took 10635.85 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 46.4 MB in the beginning and 61.3 MB in the end (delta: -14.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,986 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.35 ms. Allocated memory is still 86.0 MB. Free memory was 46.2 MB in the beginning and 63.6 MB in the end (delta: -17.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.64 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,987 INFO L168 Benchmark]: Boogie Preprocessor took 16.83 ms. Allocated memory is still 86.0 MB. Free memory was 62.3 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,987 INFO L168 Benchmark]: RCFGBuilder took 301.53 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 53.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,988 INFO L168 Benchmark]: BuchiAutomizer took 9963.28 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 53.2 MB in the beginning and 62.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,988 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 125.8 MB. Free memory was 62.4 MB in the beginning and 61.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 22:52:23,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34 ms. Allocated memory is still 86.0 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 294.35 ms. Allocated memory is still 86.0 MB. Free memory was 46.2 MB in the beginning and 63.6 MB in the end (delta: -17.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 45.64 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 16.83 ms. Allocated memory is still 86.0 MB. Free memory was 62.3 MB in the beginning and 61.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 301.53 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 53.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* BuchiAutomizer took 9963.28 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 53.2 MB in the beginning and 62.4 MB in the end (delta: -9.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB.
* Witness Printer took 4.07 ms. Allocated memory is still 125.8 MB. Free memory was 62.4 MB in the beginning and 61.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 11 terminating modules (2 trivial, 7 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function -1 * x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic 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. 2 modules have a trivial ranking function, the largest among these consists of 5 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 9.8s and 11 iterations. TraceHistogramMax:2. Analysis of lassos took 7.9s. Construction of modules took 0.1s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 173 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 122 states and ocurred in iteration 5. Nontrivial modules had stage [7, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 122 SDtfs, 126 SDslu, 39 SDs, 0 SdLazy, 185 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT8 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax161 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf94 smp87 dnf100 smp100 tf113 neg98 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 65ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 20 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 9 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2021-10-28 22:52:24,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0
[2021-10-28 22:52:24,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0
[2021-10-28 22:52:24,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9b33b87-0d09-4fa6-acc2-b75fa9943cad/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...