./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 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/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_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:56:11,641 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:56:11,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:56:11,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:56:11,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:56:11,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:56:11,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:56:11,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:56:11,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:56:11,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:56:11,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:56:11,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:56:11,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:56:11,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:56:11,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:56:11,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:56:11,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:56:11,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:56:11,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:56:11,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:56:11,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:56:11,736 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:56:11,737 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:56:11,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:56:11,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:56:11,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:56:11,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:56:11,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:56:11,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:56:11,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:56:11,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:56:11,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:56:11,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:56:11,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:56:11,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:56:11,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:56:11,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:56:11,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:56:11,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:56:11,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:56:11,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:56:11,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-64bit-Automizer_Default.epf
[2022-11-02 20:56:11,797 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:56:11,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:56:11,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:56:11,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:56:11,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:56:11,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:56:11,802 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:56:11,802 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2022-11-02 20:56:11,803 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2022-11-02 20:56:11,803 INFO L138 SettingsManager]: * Use old map elimination=false
[2022-11-02 20:56:11,804 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2022-11-02 20:56:11,804 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2022-11-02 20:56:11,804 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2022-11-02 20:56:11,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2022-11-02 20:56:11,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2022-11-02 20:56:11,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:56:11,806 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2022-11-02 20:56:11,806 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:56:11,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2022-11-02 20:56:11,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:56:11,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:56:11,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:56:11,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:56:11,808 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2022-11-02 20:56:11,809 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_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2
[2022-11-02 20:56:12,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:56:12,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:56:12,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:56:12,140 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:56:12,141 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:56:12,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2022-11-02 20:56:12,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/data/070b2ac14/c3188b421d444a51adfd06d9eff35f47/FLAG45abd920c
[2022-11-02 20:56:12,768 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:56:12,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2022-11-02 20:56:12,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/data/070b2ac14/c3188b421d444a51adfd06d9eff35f47/FLAG45abd920c
[2022-11-02 20:56:13,144 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/data/070b2ac14/c3188b421d444a51adfd06d9eff35f47
[2022-11-02 20:56:13,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:56:13,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:56:13,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:56:13,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:56:13,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:56:13,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e3e35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13, skipping insertion in model container
[2022-11-02 20:56:13,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:56:13,183 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:56:13,402 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:56:13,406 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:56:13,428 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:56:13,440 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:56:13,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13 WrapperNode
[2022-11-02 20:56:13,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:56:13,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:56:13,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:56:13,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:56:13,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,473 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29
[2022-11-02 20:56:13,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:56:13,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:56:13,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:56:13,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:56:13,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:56:13,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:56:13,493 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:56:13,493 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:56:13,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (1/1) ...
[2022-11-02 20:56:13,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:13,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:13,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:13,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:56:13,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:56:13,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:56:13,684 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:56:13,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:56:13,817 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:56:13,826 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:56:13,827 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:56:13,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:13 BoogieIcfgContainer
[2022-11-02 20:56:13,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:56:13,831 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2022-11-02 20:56:13,831 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2022-11-02 20:56:13,835 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2022-11-02 20:56:13,835 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-11-02 20:56:13,836 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:56:13" (1/3) ...
[2022-11-02 20:56:13,836 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64cb1466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:56:13, skipping insertion in model container
[2022-11-02 20:56:13,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-11-02 20:56:13,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:13" (2/3) ...
[2022-11-02 20:56:13,837 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64cb1466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:56:13, skipping insertion in model container
[2022-11-02 20:56:13,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2022-11-02 20:56:13,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:13" (3/3) ...
[2022-11-02 20:56:13,839 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c
[2022-11-02 20:56:13,923 INFO L303 stractBuchiCegarLoop]: Interprodecural is true
[2022-11-02 20:56:13,924 INFO L304 stractBuchiCegarLoop]: Hoare is false
[2022-11-02 20:56:13,924 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2022-11-02 20:56:13,924 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2022-11-02 20:56:13,924 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2022-11-02 20:56:13,924 INFO L308 stractBuchiCegarLoop]: Difference is false
[2022-11-02 20:56:13,924 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2022-11-02 20:56:13,924 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2022-11-02 20:56:13,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:13,955 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2022-11-02 20:56:13,955 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:13,956 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:13,963 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2022-11-02 20:56:13,963 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:13,963 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2022-11-02 20:56:13,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:13,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2022-11-02 20:56:13,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:13,966 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:13,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2022-11-02 20:56:13,966 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:13,974 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 9#L27-2true
[2022-11-02 20:56:13,977 INFO L750 eck$LassoCheckResult]: Loop: 9#L27-2true assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 7#L19true assume !(main_~x~0#1 > 0); 5#L27true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 9#L27-2true
[2022-11-02 20:56:13,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:13,984 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2022-11-02 20:56:14,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:14,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860492174]
[2022-11-02 20:56:14,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:14,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:14,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times
[2022-11-02 20:56:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:14,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331893769]
[2022-11-02 20:56:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times
[2022-11-02 20:56:14,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:14,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872088504]
[2022-11-02 20:56:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:14,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:14,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:14,338 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:14,339 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:14,339 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:14,339 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:14,340 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:14,340 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,340 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:14,340 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:14,340 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2022-11-02 20:56:14,340 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:14,341 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:14,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,381 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,404 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,508 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:14,508 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:14,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:14,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:14,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:14,540 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:14,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2022-11-02 20:56:14,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:14,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:14,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:14,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:14,624 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:14,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2022-11-02 20:56:14,700 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:14,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:14,710 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:14,710 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:14,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:14,710 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:14,710 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:14,710 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,710 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:14,711 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:14,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2022-11-02 20:56:14,711 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:14,711 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:14,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,755 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:14,850 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:14,854 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:14,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:14,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:14,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2022-11-02 20:56:14,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:14,879 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:14,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:14,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:14,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:14,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:14,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:14,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:14,911 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:14,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2022-11-02 20:56:14,918 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2022-11-02 20:56:14,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:14,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:14,924 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:14,927 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:14,927 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:14,928 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:14,928 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2022-11-02 20:56:14,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2022-11-02 20:56:14,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2022-11-02 20:56:14,968 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:15,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:15,036 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:15,037 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:15,059 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:15,060 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:15,121 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:15,123 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:15,187 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 50 transitions. Complement of second has 8 states.
[2022-11-02 20:56:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions.
[2022-11-02 20:56:15,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters.
[2022-11-02 20:56:15,202 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:15,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters.
[2022-11-02 20:56:15,203 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:15,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters.
[2022-11-02 20:56:15,204 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:15,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions.
[2022-11-02 20:56:15,212 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2022-11-02 20:56:15,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 17 states and 26 transitions.
[2022-11-02 20:56:15,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11
[2022-11-02 20:56:15,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12
[2022-11-02 20:56:15,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions.
[2022-11-02 20:56:15,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:15,222 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions.
[2022-11-02 20:56:15,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions.
[2022-11-02 20:56:15,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16.
[2022-11-02 20:56:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 15 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions.
[2022-11-02 20:56:15,251 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions.
[2022-11-02 20:56:15,251 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions.
[2022-11-02 20:56:15,252 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2022-11-02 20:56:15,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions.
[2022-11-02 20:56:15,252 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2022-11-02 20:56:15,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:15,253 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:15,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2022-11-02 20:56:15,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:15,254 INFO L748 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 92#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 100#L19
[2022-11-02 20:56:15,254 INFO L750 eck$LassoCheckResult]: Loop: 100#L19 assume main_~x~0#1 > 0; 101#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 99#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 100#L19
[2022-11-02 20:56:15,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:15,254 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times
[2022-11-02 20:56:15,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:15,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66162648]
[2022-11-02 20:56:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:15,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,272 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:15,273 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times
[2022-11-02 20:56:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:15,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899596736]
[2022-11-02 20:56:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:15,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,300 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:15,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:15,302 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times
[2022-11-02 20:56:15,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:15,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128056882]
[2022-11-02 20:56:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:15,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:15,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:15,376 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:15,377 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:15,377 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:15,377 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:15,377 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:15,377 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,378 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:15,378 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:15,378 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2022-11-02 20:56:15,378 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:15,378 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:15,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,391 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,412 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,467 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:15,467 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:15,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:15,485 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,508 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:15,508 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:15,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,552 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:15,555 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,578 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:15,578 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:15,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:15,648 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,667 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:15,668 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:15,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:15,696 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,737 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:15,737 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:15,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,772 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:15,774 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:15,815 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:15,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2022-11-02 20:56:15,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:15,823 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:15,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:15,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:15,938 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:15,938 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:15,938 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:15,939 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:15,939 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:15,939 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:15,939 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:15,939 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:15,939 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2022-11-02 20:56:15,939 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:15,939 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:15,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,944 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,948 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:15,959 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,021 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:16,021 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:16,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,023 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:16,050 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:16,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:16,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:16,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:16,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-11-02 20:56:16,058 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-11-02 20:56:16,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:16,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,125 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:16,137 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:16,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:16,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:16,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:16,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:16,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:16,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:16,146 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:16,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,177 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:16,189 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:16,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:16,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:16,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:16,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-11-02 20:56:16,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-11-02 20:56:16,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:16,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:16,237 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:16,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:16,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:16,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:16,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:16,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:16,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:16,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:16,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,268 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:16,281 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:16,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:16,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:16,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:16,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:16,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:16,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:16,328 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:16,341 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2022-11-02 20:56:16,341 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2022-11-02 20:56:16,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,355 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,376 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:16,376 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:16,376 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:16,376 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1
Supporting invariants []
[2022-11-02 20:56:16,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,405 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:16,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:16,425 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:16,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:16,435 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:16,463 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:16,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:16,487 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 24 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 71 transitions. Complement of second has 7 states.
[2022-11-02 20:56:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2022-11-02 20:56:16,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters.
[2022-11-02 20:56:16,490 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:16,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2022-11-02 20:56:16,490 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:16,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters.
[2022-11-02 20:56:16,490 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:16,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions.
[2022-11-02 20:56:16,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2022-11-02 20:56:16,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions.
[2022-11-02 20:56:16,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15
[2022-11-02 20:56:16,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18
[2022-11-02 20:56:16,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions.
[2022-11-02 20:56:16,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:16,494 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions.
[2022-11-02 20:56:16,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions.
[2022-11-02 20:56:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33.
[2022-11-02 20:56:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.606060606060606) internal successors, (53), 32 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions.
[2022-11-02 20:56:16,498 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions.
[2022-11-02 20:56:16,498 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions.
[2022-11-02 20:56:16,499 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2022-11-02 20:56:16,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions.
[2022-11-02 20:56:16,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2022-11-02 20:56:16,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:16,500 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:16,501 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2022-11-02 20:56:16,501 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:16,501 INFO L748 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 192#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 200#L19 assume main_~x~0#1 > 0; 194#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 197#L27-2
[2022-11-02 20:56:16,501 INFO L750 eck$LassoCheckResult]: Loop: 197#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 204#L19 assume main_~x~0#1 > 0; 202#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 197#L27-2
[2022-11-02 20:56:16,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:16,502 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times
[2022-11-02 20:56:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:16,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787797815]
[2022-11-02 20:56:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:16,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:16,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times
[2022-11-02 20:56:16,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:16,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95274958]
[2022-11-02 20:56:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:16,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:16,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times
[2022-11-02 20:56:16,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:16,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264374838]
[2022-11-02 20:56:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:16,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:16,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:16,576 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:16,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:16,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:16,577 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:16,577 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:16,577 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,577 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:16,578 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:16,578 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2022-11-02 20:56:16,578 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:16,578 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:16,579 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,599 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:16,658 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:16,658 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:16,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,659 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:16,668 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,695 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:16,695 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=3, ULTIMATE.start_main_~y~0#1=3} Honda state: {ULTIMATE.start_main_#t~nondet3#1=3, ULTIMATE.start_main_~y~0#1=3} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:16,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,731 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:16,740 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:16,762 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:16,762 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=-1} Honda state: {ULTIMATE.start_main_#t~nondet2#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:16,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,802 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:16,811 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:16,828 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:16,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:16,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,851 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:16,871 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:16,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:16,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:16,944 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:16,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:16,956 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:16,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2022-11-02 20:56:16,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:16,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:17,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0
[2022-11-02 20:56:17,001 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:17,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:17,002 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:17,002 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:17,002 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:17,002 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:17,002 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:17,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2022-11-02 20:56:17,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:17,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:17,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,018 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,031 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,035 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,123 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:17,123 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:17,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,125 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:17,139 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:17,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:17,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:17,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:17,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:17,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:17,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:17,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,150 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:17,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,189 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:17,203 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:17,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:17,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:17,204 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts
[2022-11-02 20:56:17,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:17,205 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications.
[2022-11-02 20:56:17,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:17,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,223 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:17,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,260 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:17,275 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:17,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:17,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:17,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:17,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:17,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:17,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:17,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:17,297 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2022-11-02 20:56:17,297 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2022-11-02 20:56:17,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,299 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,303 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:17,303 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:17,304 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:17,304 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2022-11-02 20:56:17,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,341 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:17,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:17,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:17,369 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:17,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:17,386 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:17,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:17,414 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:17,414 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:17,441 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 53 transitions. cyclomatic complexity: 26. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 49 states and 78 transitions. Complement of second has 8 states.
[2022-11-02 20:56:17,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions.
[2022-11-02 20:56:17,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters.
[2022-11-02 20:56:17,443 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:17,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters.
[2022-11-02 20:56:17,444 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:17,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters.
[2022-11-02 20:56:17,444 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:17,444 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions.
[2022-11-02 20:56:17,446 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10
[2022-11-02 20:56:17,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions.
[2022-11-02 20:56:17,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19
[2022-11-02 20:56:17,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2022-11-02 20:56:17,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions.
[2022-11-02 20:56:17,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:17,448 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions.
[2022-11-02 20:56:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions.
[2022-11-02 20:56:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42.
[2022-11-02 20:56:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 41 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions.
[2022-11-02 20:56:17,453 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions.
[2022-11-02 20:56:17,453 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions.
[2022-11-02 20:56:17,453 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2022-11-02 20:56:17,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions.
[2022-11-02 20:56:17,454 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10
[2022-11-02 20:56:17,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:17,455 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:17,455 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1]
[2022-11-02 20:56:17,455 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:17,456 INFO L748 eck$LassoCheckResult]: Stem: 316#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 317#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 322#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 345#L19 assume !(main_~x~0#1 > 0); 337#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 336#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 331#L19 assume !(main_~x~0#1 > 0); 333#L27
[2022-11-02 20:56:17,456 INFO L750 eck$LassoCheckResult]: Loop: 333#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 357#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 355#L19 assume !(main_~x~0#1 > 0); 333#L27
[2022-11-02 20:56:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:17,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times
[2022-11-02 20:56:17,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:17,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904429929]
[2022-11-02 20:56:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:17,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,467 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:17,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:17,468 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times
[2022-11-02 20:56:17,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:17,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604125638]
[2022-11-02 20:56:17,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:17,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:17,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:17,476 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times
[2022-11-02 20:56:17,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:17,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385786958]
[2022-11-02 20:56:17,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:17,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:17,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:17,522 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:17,522 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:17,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:17,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:17,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:17,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:17,523 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:17,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2022-11-02 20:56:17,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:17,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:17,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,528 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,546 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,633 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:17,633 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:17,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,635 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:17,639 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:17,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,675 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:17,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:17,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,710 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,715 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:17,716 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:17,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,743 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:17,743 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:17,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,783 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:17,788 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:17,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:17,857 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:17,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:17,859 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:17,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2022-11-02 20:56:17,971 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:17,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:17,975 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:17,975 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:17,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:17,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:17,975 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:17,975 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:17,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:17,976 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:17,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2022-11-02 20:56:17,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:17,976 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:17,977 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,986 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:17,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,002 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,006 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,065 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:18,065 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:18,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,067 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:18,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,090 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:18,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:18,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:18,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:18,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:18,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:18,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:18,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:18,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,147 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:18,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,164 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:18,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:18,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:18,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:18,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:18,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:18,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:18,175 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:18,178 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2022-11-02 20:56:18,178 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2022-11-02 20:56:18,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,183 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,185 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:18,185 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:18,185 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:18,185 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2022-11-02 20:56:18,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,223 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:18,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,247 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,262 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,263 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:18,280 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:18,280 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,326 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states.
[2022-11-02 20:56:18,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2022-11-02 20:56:18,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2022-11-02 20:56:18,328 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:18,328 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2022-11-02 20:56:18,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,348 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,366 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,366 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:18,380 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:18,380 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,416 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 108 states and 160 transitions. Complement of second has 7 states.
[2022-11-02 20:56:18,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2022-11-02 20:56:18,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2022-11-02 20:56:18,418 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:18,418 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2022-11-02 20:56:18,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,436 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,450 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:18,450 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:18,462 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:18,462 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,495 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 66 transitions. cyclomatic complexity: 32. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 109 states and 163 transitions. Complement of second has 8 states.
[2022-11-02 20:56:18,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions.
[2022-11-02 20:56:18,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters.
[2022-11-02 20:56:18,497 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:18,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters.
[2022-11-02 20:56:18,497 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:18,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters.
[2022-11-02 20:56:18,498 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:18,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions.
[2022-11-02 20:56:18,501 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27
[2022-11-02 20:56:18,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions.
[2022-11-02 20:56:18,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34
[2022-11-02 20:56:18,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39
[2022-11-02 20:56:18,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions.
[2022-11-02 20:56:18,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:18,503 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions.
[2022-11-02 20:56:18,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions.
[2022-11-02 20:56:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80.
[2022-11-02 20:56:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 80 states have (on average 1.5875) internal successors, (127), 79 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:18,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions.
[2022-11-02 20:56:18,511 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions.
[2022-11-02 20:56:18,511 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions.
[2022-11-02 20:56:18,511 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============
[2022-11-02 20:56:18,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions.
[2022-11-02 20:56:18,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22
[2022-11-02 20:56:18,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:18,514 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:18,514 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1]
[2022-11-02 20:56:18,514 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:18,515 INFO L748 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 814#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 824#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 847#L19 assume main_~x~0#1 > 0; 869#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 887#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 834#L19 assume !(main_~x~0#1 > 0); 835#L27
[2022-11-02 20:56:18,515 INFO L750 eck$LassoCheckResult]: Loop: 835#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 817#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 884#L19 assume !(main_~x~0#1 > 0); 835#L27
[2022-11-02 20:56:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times
[2022-11-02 20:56:18,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290260723]
[2022-11-02 20:56:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:18,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:56:18,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290260723]
[2022-11-02 20:56:18,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290260723] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:56:18,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:56:18,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:56:18,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235093662]
[2022-11-02 20:56:18,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:56:18,618 INFO L753 eck$LassoCheckResult]: stem already infeasible
[2022-11-02 20:56:18,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:18,619 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times
[2022-11-02 20:56:18,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:18,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199916815]
[2022-11-02 20:56:18,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:18,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:18,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:18,627 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:18,658 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:18,658 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:18,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:18,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:18,659 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:18,659 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,659 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:18,659 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:18,659 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2022-11-02 20:56:18,659 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:18,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:18,661 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,667 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,670 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,673 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,676 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:18,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,782 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:18,782 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:18,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,783 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:18,788 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:18,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,824 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:18,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_#t~nondet5#1=-8} Honda state: {ULTIMATE.start_main_~x~0#1=-8, ULTIMATE.start_main_#t~nondet5#1=-8} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:18,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,863 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:18,868 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:18,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,891 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:18,891 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4#1=0} Honda state: {ULTIMATE.start_main_#t~nondet4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:18,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:18,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:18,929 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:18,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:18,932 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:18,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2022-11-02 20:56:18,963 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:18,963 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:19,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:19,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,004 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,007 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:19,007 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,031 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:19,031 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:19,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0
[2022-11-02 20:56:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,060 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:19,062 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0
[2022-11-02 20:56:19,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,095 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:19,100 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,198 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:19,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0
[2022-11-02 20:56:19,201 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:19,201 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:19,201 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:19,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:19,201 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:19,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:19,202 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:19,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2022-11-02 20:56:19,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:19,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:19,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,218 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,221 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,290 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:19,291 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:19,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,307 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:19,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,324 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:19,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:19,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:19,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:19,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:19,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:19,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:19,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:19,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0
[2022-11-02 20:56:19,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,384 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:19,400 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:19,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:19,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:19,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:19,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:19,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:19,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:19,402 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:19,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0
[2022-11-02 20:56:19,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,426 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:19,438 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:19,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:19,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:19,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:19,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-11-02 20:56:19,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-11-02 20:56:19,467 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:19,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0
[2022-11-02 20:56:19,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,499 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:19,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,512 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:19,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:19,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:19,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:19,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:19,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:19,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:19,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:19,528 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2022-11-02 20:56:19,528 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2022-11-02 20:56:19,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,531 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,533 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:19,533 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:19,533 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:19,533 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1
Supporting invariants []
[2022-11-02 20:56:19,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0
[2022-11-02 20:56:19,554 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:19,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:19,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:19,578 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:19,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:19,596 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:19,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:19,626 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2022-11-02 20:56:19,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:19,660 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 127 transitions. cyclomatic complexity: 57. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 196 states and 321 transitions. Complement of second has 7 states.
[2022-11-02 20:56:19,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:19,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2022-11-02 20:56:19,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2022-11-02 20:56:19,666 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:19,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters.
[2022-11-02 20:56:19,666 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:19,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters.
[2022-11-02 20:56:19,667 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:19,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions.
[2022-11-02 20:56:19,674 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25
[2022-11-02 20:56:19,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions.
[2022-11-02 20:56:19,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41
[2022-11-02 20:56:19,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46
[2022-11-02 20:56:19,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions.
[2022-11-02 20:56:19,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:19,676 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions.
[2022-11-02 20:56:19,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions.
[2022-11-02 20:56:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119.
[2022-11-02 20:56:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.638655462184874) internal successors, (195), 118 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions.
[2022-11-02 20:56:19,685 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions.
[2022-11-02 20:56:19,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:56:19,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:56:19,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:56:19,689 INFO L87 Difference]: Start difference. First operand 119 states and 195 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:19,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:56:19,710 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions.
[2022-11-02 20:56:19,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions.
[2022-11-02 20:56:19,711 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2022-11-02 20:56:19,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions.
[2022-11-02 20:56:19,712 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21
[2022-11-02 20:56:19,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21
[2022-11-02 20:56:19,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions.
[2022-11-02 20:56:19,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2022-11-02 20:56:19,713 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions.
[2022-11-02 20:56:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions.
[2022-11-02 20:56:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42.
[2022-11-02 20:56:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 41 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions.
[2022-11-02 20:56:19,716 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions.
[2022-11-02 20:56:19,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:56:19,717 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions.
[2022-11-02 20:56:19,717 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============
[2022-11-02 20:56:19,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions.
[2022-11-02 20:56:19,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2022-11-02 20:56:19,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2022-11-02 20:56:19,718 INFO L119 BuchiIsEmpty]: Starting construction of run
[2022-11-02 20:56:19,718 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1]
[2022-11-02 20:56:19,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2022-11-02 20:56:19,718 INFO L748 eck$LassoCheckResult]: Stem: 1344#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1354#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1367#L19 assume main_~x~0#1 > 0; 1355#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1356#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1361#L19
[2022-11-02 20:56:19,719 INFO L750 eck$LassoCheckResult]: Loop: 1361#L19 assume main_~x~0#1 > 0; 1385#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 1360#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1361#L19
[2022-11-02 20:56:19,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:19,719 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times
[2022-11-02 20:56:19,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:19,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855074628]
[2022-11-02 20:56:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:19,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:19,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:19,729 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times
[2022-11-02 20:56:19,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:19,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89557194]
[2022-11-02 20:56:19,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:19,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times
[2022-11-02 20:56:19,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:56:19,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398223137]
[2022-11-02 20:56:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:56:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:56:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:56:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:56:19,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2022-11-02 20:56:19,800 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:19,800 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:19,800 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:19,800 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:19,801 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2022-11-02 20:56:19,801 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,801 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:19,801 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:19,801 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop
[2022-11-02 20:56:19,801 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:19,801 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:19,803 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,806 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,810 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,812 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,817 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:19,862 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:19,862 INFO L404 LassoAnalysis]: Checking for nontermination...
[2022-11-02 20:56:19,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,863 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,865 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:19,865 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,903 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:19,903 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1} Honda state: {ULTIMATE.start_main_~x~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:19,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:19,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,931 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:19,933 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,950 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:19,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:19,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0
[2022-11-02 20:56:19,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:19,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:19,971 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:19,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2022-11-02 20:56:19,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:19,973 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:19,990 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2022-11-02 20:56:19,990 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2022-11-02 20:56:20,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:20,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,011 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2022-11-02 20:56:20,012 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:20,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0
[2022-11-02 20:56:20,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,045 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2022-11-02 20:56:20,055 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2022-11-02 20:56:20,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,136 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2022-11-02 20:56:20,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0
[2022-11-02 20:56:20,139 INFO L210 LassoAnalysis]: Preferences:
[2022-11-02 20:56:20,139 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2022-11-02 20:56:20,139 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2022-11-02 20:56:20,139 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2022-11-02 20:56:20,139 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2022-11-02 20:56:20,139 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,139 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2022-11-02 20:56:20,139 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2022-11-02 20:56:20,140 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop
[2022-11-02 20:56:20,140 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2022-11-02 20:56:20,140 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2022-11-02 20:56:20,141 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:20,143 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:20,146 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:20,155 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:20,159 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2022-11-02 20:56:20,218 INFO L294 LassoAnalysis]: Preprocessing complete.
[2022-11-02 20:56:20,219 INFO L490 LassoAnalysis]: Using template 'affine'.
[2022-11-02 20:56:20,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,223 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:20,241 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:20,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:20,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:20,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:20,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:20,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:20,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:20,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:20,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:20,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,270 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:20,281 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:20,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:20,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:20,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:20,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2022-11-02 20:56:20,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2022-11-02 20:56:20,288 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2022-11-02 20:56:20,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0
[2022-11-02 20:56:20,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,310 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,312 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2022-11-02 20:56:20,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,323 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2022-11-02 20:56:20,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2022-11-02 20:56:20,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2022-11-02 20:56:20,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2022-11-02 20:56:20,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2022-11-02 20:56:20,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2022-11-02 20:56:20,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2022-11-02 20:56:20,347 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2022-11-02 20:56:20,349 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2022-11-02 20:56:20,349 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2022-11-02 20:56:20,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2022-11-02 20:56:20,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:56:20,351 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2022-11-02 20:56:20,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process
[2022-11-02 20:56:20,359 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2022-11-02 20:56:20,359 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2022-11-02 20:56:20,359 INFO L513 LassoAnalysis]: Proved termination.
[2022-11-02 20:56:20,359 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1
Supporting invariants []
[2022-11-02 20:56:20,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:20,381 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2022-11-02 20:56:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,398 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,410 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:20,434 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:20,434 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states.
[2022-11-02 20:56:20,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2022-11-02 20:56:20,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2022-11-02 20:56:20,460 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:20,460 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2022-11-02 20:56:20,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,481 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,499 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:20,513 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:20,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,539 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 124 transitions. Complement of second has 7 states.
[2022-11-02 20:56:20,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2022-11-02 20:56:20,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2022-11-02 20:56:20,541 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:20,541 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2022-11-02 20:56:20,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:56:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,559 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:56:20,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:56:20,577 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:56:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:56:20,594 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates
[2022-11-02 20:56:20,595 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 64 transitions. cyclomatic complexity: 29. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 81 states and 129 transitions. Complement of second has 8 states.
[2022-11-02 20:56:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2022-11-02 20:56:20,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:56:20,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions.
[2022-11-02 20:56:20,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters.
[2022-11-02 20:56:20,622 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:20,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters.
[2022-11-02 20:56:20,622 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:20,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters.
[2022-11-02 20:56:20,622 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2022-11-02 20:56:20,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions.
[2022-11-02 20:56:20,624 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2022-11-02 20:56:20,624 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions.
[2022-11-02 20:56:20,624 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2022-11-02 20:56:20,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2022-11-02 20:56:20,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2022-11-02 20:56:20,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2022-11-02 20:56:20,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:56:20,624 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:56:20,624 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:56:20,624 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============
[2022-11-02 20:56:20,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:56:20,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2022-11-02 20:56:20,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2022-11-02 20:56:20,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:56:20 BoogieIcfgContainer
[2022-11-02 20:56:20,632 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2022-11-02 20:56:20,633 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:56:20,633 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:56:20,633 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:56:20,633 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:56:13" (3/4) ...
[2022-11-02 20:56:20,636 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2022-11-02 20:56:20,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:56:20,637 INFO L158 Benchmark]: Toolchain (without parser) took 7487.99ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 64.4MB in the beginning and 39.5MB in the end (delta: 24.9MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,637 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:56:20,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.73ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 82.3MB in the end (delta: -18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.14ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,638 INFO L158 Benchmark]: Boogie Preprocessor took 18.11ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 80.0MB in the end (delta: 859.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:56:20,639 INFO L158 Benchmark]: RCFGBuilder took 336.02ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 71.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,639 INFO L158 Benchmark]: BuchiAutomizer took 6801.70ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 40.6MB in the end (delta: 30.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,639 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 132.1MB. Free memory was 40.6MB in the beginning and 39.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:56:20,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 288.73ms. Allocated memory is still 107.0MB. Free memory was 64.2MB in the beginning and 82.3MB in the end (delta: -18.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.14ms. Allocated memory is still 107.0MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 18.11ms. Allocated memory is still 107.0MB. Free memory was 80.8MB in the beginning and 80.0MB in the end (delta: 859.5kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 336.02ms. Allocated memory is still 107.0MB. Free memory was 80.0MB in the beginning and 71.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* BuchiAutomizer took 6801.70ms. Allocated memory was 107.0MB in the beginning and 132.1MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 40.6MB in the end (delta: 30.1MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB.
* Witness Printer took 3.69ms. Allocated memory is still 132.1MB. Free memory was 40.6MB in the beginning and 39.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function -1 * x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 6.7s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 74 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 143 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 100 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax161 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf94 smp84 dnf100 smp100 tf113 neg98 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:56:20,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0
[2022-11-02 20:56:20,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0
[2022-11-02 20:56:21,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8599a13-c872-4b59-96f3-68781c5849a2/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE