./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 9bd2c7ff
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_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/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_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:01:50,669 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:01:50,778 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf
[2023-11-19 08:01:50,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:01:50,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:01:50,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:01:50,833 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:01:50,833 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:01:50,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:01:50,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 08:01:50,841 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 08:01:50,842 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2023-11-19 08:01:50,842 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2023-11-19 08:01:50,844 INFO L153 SettingsManager]: * Use old map elimination=false
[2023-11-19 08:01:50,845 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2023-11-19 08:01:50,845 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2023-11-19 08:01:50,846 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2023-11-19 08:01:50,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:01:50,847 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2023-11-19 08:01:50,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 08:01:50,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 08:01:50,849 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2023-11-19 08:01:50,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2023-11-19 08:01:50,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2023-11-19 08:01:50,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 08:01:50,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 08:01:50,853 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2023-11-19 08:01:50,854 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 08:01:50,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:01:50,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 08:01:50,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:01:50,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 08:01:50,857 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2023-11-19 08:01:50,857 INFO L153 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_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb75d9c793adce3c2c2ca6d31453358360225b1f8596bb0dddfb529afd517e2
[2023-11-19 08:01:51,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:01:51,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:01:51,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:01:51,242 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 08:01:51,243 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 08:01:51,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2023-11-19 08:01:54,272 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:01:54,464 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 08:01:54,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c
[2023-11-19 08:01:54,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/data/8246ed24c/72ad145ff6334e0aa28de91117227bf9/FLAG93ca4460f
[2023-11-19 08:01:54,487 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/data/8246ed24c/72ad145ff6334e0aa28de91117227bf9
[2023-11-19 08:01:54,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:01:54,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:01:54,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:01:54,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:01:54,499 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:01:54,500 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,501 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e941cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54, skipping insertion in model container
[2023-11-19 08:01:54,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,521 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:01:54,667 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:01:54,673 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 08:01:54,684 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:01:54,695 INFO L206 MainTranslator]: Completed translation
[2023-11-19 08:01:54,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54 WrapperNode
[2023-11-19 08:01:54,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:01:54,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:01:54,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:01:54,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:01:54,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,726 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35
[2023-11-19 08:01:54,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:01:54,727 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:01:54,727 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:01:54,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:01:54,736 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:01:54,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:01:54,747 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:01:54,747 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:01:54,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (1/1) ...
[2023-11-19 08:01:54,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:54,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:54,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:54,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:01:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:01:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:01:54,894 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 08:01:54,897 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:01:54,972 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 08:01:54,980 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:01:54,981 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 08:01:54,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:54 BoogieIcfgContainer
[2023-11-19 08:01:54,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:01:54,985 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2023-11-19 08:01:54,986 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2023-11-19 08:01:54,990 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2023-11-19 08:01:54,991 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:01:54,991 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:01:54" (1/3) ...
[2023-11-19 08:01:54,992 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fe9e24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:54, skipping insertion in model container
[2023-11-19 08:01:54,992 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:01:54,993 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:54" (2/3) ...
[2023-11-19 08:01:54,993 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fe9e24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:54, skipping insertion in model container
[2023-11-19 08:01:54,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 08:01:54,993 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:54" (3/3) ...
[2023-11-19 08:01:54,995 INFO L332 chiAutomizerObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c
[2023-11-19 08:01:55,058 INFO L303 stractBuchiCegarLoop]: Interprodecural is true
[2023-11-19 08:01:55,058 INFO L304 stractBuchiCegarLoop]: Hoare is false
[2023-11-19 08:01:55,058 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2023-11-19 08:01:55,058 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2023-11-19 08:01:55,059 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2023-11-19 08:01:55,059 INFO L308 stractBuchiCegarLoop]: Difference is false
[2023-11-19 08:01:55,059 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2023-11-19 08:01:55,059 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2023-11-19 08:01:55,064 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)
[2023-11-19 08:01:55,083 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2023-11-19 08:01:55,084 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:55,084 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:55,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 08:01:55,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:55,091 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2023-11-19 08:01:55,092 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)
[2023-11-19 08:01:55,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4
[2023-11-19 08:01:55,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:55,093 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:55,094 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 08:01:55,094 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:55,102 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L27-2true
[2023-11-19 08:01:55,103 INFO L750 eck$LassoCheckResult]: Loop: 10#L27-2true assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 8#L19true assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 5#L27true assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 10#L27-2true
[2023-11-19 08:01:55,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:55,110 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2023-11-19 08:01:55,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:55,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973716978]
[2023-11-19 08:01:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:55,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:55,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:55,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:55,221 INFO L85 PathProgramCache]: Analyzing trace with hash 41069, now seen corresponding path program 1 times
[2023-11-19 08:01:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:55,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998132256]
[2023-11-19 08:01:55,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:55,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,239 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:55,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:55,248 INFO L85 PathProgramCache]: Analyzing trace with hash 28700011, now seen corresponding path program 1 times
[2023-11-19 08:01:55,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:55,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537605337]
[2023-11-19 08:01:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:55,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:55,380 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:55,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:55,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:55,382 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:55,382 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:01:55,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:55,382 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:55,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2023-11-19 08:01:55,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:55,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:55,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,417 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,422 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,535 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:55,536 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:01:55,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:55,549 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:55,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,581 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:55,582 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2023-11-19 08:01:55,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0
[2023-11-19 08:01:55,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:55,608 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:55,632 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:55,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2023-11-19 08:01:55,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:55,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,656 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:55,669 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:55,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:55,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:01:55,705 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:55,761 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:01:55,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:55,765 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:55,766 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:55,766 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:55,766 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:55,766 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:01:55,766 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,766 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:55,766 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:55,766 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration1_Loop
[2023-11-19 08:01:55,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:55,767 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:55,769 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:55,892 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:55,897 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:01:55,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,908 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
[2023-11-19 08:01:55,921 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:55,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:55,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:55,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:55,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:55,925 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:55,925 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:55,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,944 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:01:55,948 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2023-11-19 08:01:55,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2023-11-19 08:01:55,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:55,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,052 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:01:56,052 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:01:56,053 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:01:56,054 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 []
[2023-11-19 08:01:56,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,084 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:01:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,138 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:56,139 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,158 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:56,160 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:56,239 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
[2023-11-19 08:01:56,241 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)
[2023-11-19 08:01:56,306 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 30 states and 47 transitions. Complement of second has 8 states.
[2023-11-19 08:01:56,309 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
[2023-11-19 08:01:56,314 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)
[2023-11-19 08:01:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions.
[2023-11-19 08:01:56,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 3 letters.
[2023-11-19 08:01:56,318 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:56,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 5 letters. Loop has 3 letters.
[2023-11-19 08:01:56,318 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:56,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 6 letters.
[2023-11-19 08:01:56,319 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:56,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 47 transitions.
[2023-11-19 08:01:56,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2023-11-19 08:01:56,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 17 states and 26 transitions.
[2023-11-19 08:01:56,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11
[2023-11-19 08:01:56,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12
[2023-11-19 08:01:56,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 26 transitions.
[2023-11-19 08:01:56,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:01:56,330 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions.
[2023-11-19 08:01:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 26 transitions.
[2023-11-19 08:01:56,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16.
[2023-11-19 08:01:56,358 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)
[2023-11-19 08:01:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 24 transitions.
[2023-11-19 08:01:56,360 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 24 transitions.
[2023-11-19 08:01:56,361 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 24 transitions.
[2023-11-19 08:01:56,361 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2023-11-19 08:01:56,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 24 transitions.
[2023-11-19 08:01:56,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2023-11-19 08:01:56,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:56,363 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:56,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2023-11-19 08:01:56,363 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:56,364 INFO L748 eck$LassoCheckResult]: Stem: 86#$Ultimate##0 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;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 88#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 96#L19
[2023-11-19 08:01:56,364 INFO L750 eck$LassoCheckResult]: Loop: 96#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 97#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 95#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 96#L19
[2023-11-19 08:01:56,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:56,365 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times
[2023-11-19 08:01:56,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:56,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765767196]
[2023-11-19 08:01:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:56,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:56,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 1 times
[2023-11-19 08:01:56,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:56,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637567673]
[2023-11-19 08:01:56,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:56,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:56,393 INFO L85 PathProgramCache]: Analyzing trace with hash 889692478, now seen corresponding path program 1 times
[2023-11-19 08:01:56,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:56,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142505190]
[2023-11-19 08:01:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:56,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:56,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:56,481 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:56,482 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:56,482 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:56,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:56,482 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:01:56,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:56,483 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:56,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2023-11-19 08:01:56,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:56,483 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:56,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,587 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:56,587 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:01:56,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,592 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:56,598 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:56,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,622 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:56,622 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: []
[2023-11-19 08:01:56,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,649 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:56,656 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:56,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,688 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:56,688 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: []
[2023-11-19 08:01:56,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,714 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:56,722 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:56,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,756 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:56,756 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: []
[2023-11-19 08:01:56,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,783 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,789 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:56,789 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:56,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:01:56,841 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:56,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2023-11-19 08:01:56,957 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:01:56,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,968 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:56,968 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:56,968 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:56,968 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:56,968 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:01:56,968 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:56,969 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:56,969 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:56,969 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration2_Loop
[2023-11-19 08:01:56,969 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:56,969 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:56,971 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,981 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,984 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:56,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,045 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:57,045 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:01:57,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,047 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,049 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
[2023-11-19 08:01:57,062 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:57,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:57,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:57,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:57,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 08:01:57,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 08:01:57,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:57,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,104 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,112 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
[2023-11-19 08:01:57,125 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:57,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:57,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:57,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:57,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:57,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:57,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:57,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:57,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,183 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,192 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
[2023-11-19 08:01:57,204 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:57,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:57,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:57,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:57,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,209 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 08:01:57,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 08:01:57,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:57,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,254 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,258 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
[2023-11-19 08:01:57,271 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:57,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:57,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:57,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:57,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:57,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:57,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:57,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,283 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:01:57,286 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2023-11-19 08:01:57,287 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2023-11-19 08:01:57,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,289 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,296 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:01:57,296 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:01:57,296 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:01:57,297 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 []
[2023-11-19 08:01:57,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,321 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:01:57,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:57,347 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:57,363 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:57,388 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
[2023-11-19 08:01:57,389 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)
[2023-11-19 08:01:57,432 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.
[2023-11-19 08:01:57,433 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
[2023-11-19 08:01:57,434 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)
[2023-11-19 08:01:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2023-11-19 08:01:57,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters.
[2023-11-19 08:01:57,435 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:57,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2023-11-19 08:01:57,435 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:57,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters.
[2023-11-19 08:01:57,436 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:57,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 71 transitions.
[2023-11-19 08:01:57,439 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2023-11-19 08:01:57,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 37 states and 57 transitions.
[2023-11-19 08:01:57,440 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15
[2023-11-19 08:01:57,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18
[2023-11-19 08:01:57,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 57 transitions.
[2023-11-19 08:01:57,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:01:57,441 INFO L218 hiAutomatonCegarLoop]: Abstraction has 37 states and 57 transitions.
[2023-11-19 08:01:57,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 57 transitions.
[2023-11-19 08:01:57,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33.
[2023-11-19 08:01:57,445 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)
[2023-11-19 08:01:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 53 transitions.
[2023-11-19 08:01:57,446 INFO L240 hiAutomatonCegarLoop]: Abstraction has 33 states and 53 transitions.
[2023-11-19 08:01:57,446 INFO L428 stractBuchiCegarLoop]: Abstraction has 33 states and 53 transitions.
[2023-11-19 08:01:57,446 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2023-11-19 08:01:57,446 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 53 transitions.
[2023-11-19 08:01:57,448 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7
[2023-11-19 08:01:57,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:57,448 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:57,448 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2023-11-19 08:01:57,448 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:57,449 INFO L748 eck$LassoCheckResult]: Stem: 186#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 187#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 188#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 202#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 190#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 193#L27-2
[2023-11-19 08:01:57,452 INFO L750 eck$LassoCheckResult]: Loop: 193#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 210#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 208#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 193#L27-2
[2023-11-19 08:01:57,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash 28699755, now seen corresponding path program 1 times
[2023-11-19 08:01:57,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:57,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509934503]
[2023-11-19 08:01:57,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:57,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:57,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash 40813, now seen corresponding path program 1 times
[2023-11-19 08:01:57,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:57,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786041436]
[2023-11-19 08:01:57,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:57,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:57,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash 295920323, now seen corresponding path program 2 times
[2023-11-19 08:01:57,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:57,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841263634]
[2023-11-19 08:01:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:57,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:57,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:57,564 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:57,565 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:57,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:57,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:57,565 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:01:57,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:57,565 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:57,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2023-11-19 08:01:57,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:57,566 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:57,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,585 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,639 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:57,639 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:01:57,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,644 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:57,647 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:57,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,665 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:57,665 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2023-11-19 08:01:57,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,690 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:57,694 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:57,715 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:57,716 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: []
[2023-11-19 08:01:57,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,729 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:57,733 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:57,751 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:57,751 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: []
[2023-11-19 08:01:57,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,767 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,773 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:57,773 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:57,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,811 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:01:57,814 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:57,852 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:01:57,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,855 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:57,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:57,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:57,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:57,855 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:01:57,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,856 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:57,856 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:57,856 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration3_Loop
[2023-11-19 08:01:57,856 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:57,856 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:57,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:57,951 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:57,952 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:01:57,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,954 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,965 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
[2023-11-19 08:01:57,975 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:57,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:57,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:57,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:57,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:57,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:57,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:57,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:57,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:57,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:57,992 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:57,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,994 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
[2023-11-19 08:01:58,004 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:58,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:58,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:58,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:58,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:58,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:58,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:58,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:58,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,037 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,041 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
[2023-11-19 08:01:58,054 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:58,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:58,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:58,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:58,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:58,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:58,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:58,068 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:01:58,072 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2023-11-19 08:01:58,073 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 08:01:58,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,075 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:01:58,078 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:01:58,078 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:01:58,078 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 []
[2023-11-19 08:01:58,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,103 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:01:58,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,126 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,142 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,142 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:58,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:58,165 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
[2023-11-19 08:01:58,165 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)
[2023-11-19 08:01:58,211 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.
[2023-11-19 08:01:58,211 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
[2023-11-19 08:01:58,212 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)
[2023-11-19 08:01:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions.
[2023-11-19 08:01:58,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters.
[2023-11-19 08:01:58,213 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:58,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 8 letters. Loop has 3 letters.
[2023-11-19 08:01:58,213 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:58,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 6 letters.
[2023-11-19 08:01:58,213 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:58,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 78 transitions.
[2023-11-19 08:01:58,216 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10
[2023-11-19 08:01:58,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 44 states and 69 transitions.
[2023-11-19 08:01:58,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19
[2023-11-19 08:01:58,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20
[2023-11-19 08:01:58,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 69 transitions.
[2023-11-19 08:01:58,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:01:58,218 INFO L218 hiAutomatonCegarLoop]: Abstraction has 44 states and 69 transitions.
[2023-11-19 08:01:58,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 69 transitions.
[2023-11-19 08:01:58,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42.
[2023-11-19 08:01:58,252 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)
[2023-11-19 08:01:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions.
[2023-11-19 08:01:58,256 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 66 transitions.
[2023-11-19 08:01:58,257 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 66 transitions.
[2023-11-19 08:01:58,257 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2023-11-19 08:01:58,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 66 transitions.
[2023-11-19 08:01:58,259 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10
[2023-11-19 08:01:58,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:58,259 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:58,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1]
[2023-11-19 08:01:58,260 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:58,260 INFO L748 eck$LassoCheckResult]: Stem: 316#$Ultimate##0 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;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#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); 342#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 333#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 332#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 327#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 328#L27
[2023-11-19 08:01:58,261 INFO L750 eck$LassoCheckResult]: Loop: 328#L27 assume 0 != main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~x~0#1 := 1 + main_~x~0#1; 353#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 351#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 328#L27
[2023-11-19 08:01:58,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1810909080, now seen corresponding path program 1 times
[2023-11-19 08:01:58,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304773014]
[2023-11-19 08:01:58,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:58,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:58,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash 54179, now seen corresponding path program 2 times
[2023-11-19 08:01:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:58,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78059223]
[2023-11-19 08:01:58,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:58,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:58,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,323 INFO L85 PathProgramCache]: Analyzing trace with hash -291778388, now seen corresponding path program 1 times
[2023-11-19 08:01:58,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:58,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623971206]
[2023-11-19 08:01:58,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:58,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:58,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:58,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,421 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:58,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:58,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:58,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:58,421 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:01:58,421 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:58,422 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:58,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2023-11-19 08:01:58,422 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:58,422 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:58,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,439 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,443 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,506 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:58,506 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:01:58,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,507 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:58,513 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:58,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,564 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:01:58,567 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:58,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:01:58,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,690 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:58,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:58,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:58,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:58,690 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:01:58,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:58,691 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:58,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration4_Loop
[2023-11-19 08:01:58,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:58,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:58,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,704 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,712 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:58,791 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:58,791 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:01:58,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,792 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,795 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
[2023-11-19 08:01:58,807 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:58,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:58,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:58,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:58,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:58,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:58,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:58,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,820 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:01:58,832 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2023-11-19 08:01:58,832 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 08:01:58,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:58,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:58,834 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:58,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:01:58,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:01:58,838 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:01:58,838 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 []
[2023-11-19 08:01:58,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process
[2023-11-19 08:01:58,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:58,858 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:01:58,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,879 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,898 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,898 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:58,911 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
[2023-11-19 08:01:58,911 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)
[2023-11-19 08:01:58,953 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.
[2023-11-19 08:01:58,953 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
[2023-11-19 08:01:58,954 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)
[2023-11-19 08:01:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2023-11-19 08:01:58,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2023-11-19 08:01:58,955 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:58,955 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 08:01:58,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,973 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:58,987 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:58,988 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:59,001 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
[2023-11-19 08:01:59,001 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)
[2023-11-19 08:01:59,031 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.
[2023-11-19 08:01:59,031 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
[2023-11-19 08:01:59,032 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)
[2023-11-19 08:01:59,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2023-11-19 08:01:59,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2023-11-19 08:01:59,033 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:59,033 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 08:01:59,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:59,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:59,052 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:59,072 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:01:59,073 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:59,090 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
[2023-11-19 08:01:59,091 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)
[2023-11-19 08:01:59,144 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.
[2023-11-19 08:01:59,145 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
[2023-11-19 08:01:59,146 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)
[2023-11-19 08:01:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions.
[2023-11-19 08:01:59,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 3 letters.
[2023-11-19 08:01:59,148 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:59,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 10 letters. Loop has 3 letters.
[2023-11-19 08:01:59,149 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:59,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 7 letters. Loop has 6 letters.
[2023-11-19 08:01:59,151 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:01:59,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 163 transitions.
[2023-11-19 08:01:59,157 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 27
[2023-11-19 08:01:59,161 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 98 states and 149 transitions.
[2023-11-19 08:01:59,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34
[2023-11-19 08:01:59,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39
[2023-11-19 08:01:59,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 149 transitions.
[2023-11-19 08:01:59,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:01:59,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 98 states and 149 transitions.
[2023-11-19 08:01:59,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 149 transitions.
[2023-11-19 08:01:59,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 80.
[2023-11-19 08:01:59,178 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)
[2023-11-19 08:01:59,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 127 transitions.
[2023-11-19 08:01:59,182 INFO L240 hiAutomatonCegarLoop]: Abstraction has 80 states and 127 transitions.
[2023-11-19 08:01:59,182 INFO L428 stractBuchiCegarLoop]: Abstraction has 80 states and 127 transitions.
[2023-11-19 08:01:59,182 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============
[2023-11-19 08:01:59,182 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 127 transitions.
[2023-11-19 08:01:59,185 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 22
[2023-11-19 08:01:59,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:01:59,189 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:01:59,190 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1]
[2023-11-19 08:01:59,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:01:59,190 INFO L748 eck$LassoCheckResult]: Stem: 814#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 815#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 820#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 842#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 862#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 858#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 830#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 831#L27
[2023-11-19 08:01:59,190 INFO L750 eck$LassoCheckResult]: Loop: 831#L27 assume !(0 != main_#t~nondet4#1);havoc main_#t~nondet4#1;main_~y~0#1 := main_~y~0#1 - 1;havoc main_#t~nondet5#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 811#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 853#L19 assume !(main_~x~0#1 > 0);havoc main_#t~nondet4#1; 831#L27
[2023-11-19 08:01:59,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:59,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1810661142, now seen corresponding path program 1 times
[2023-11-19 08:01:59,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:59,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462795119]
[2023-11-19 08:01:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:59,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:01:59,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:59,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462795119]
[2023-11-19 08:01:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462795119] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:59,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:01:59,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-19 08:01:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878696590]
[2023-11-19 08:01:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:59,316 INFO L753 eck$LassoCheckResult]: stem already infeasible
[2023-11-19 08:01:59,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash 56101, now seen corresponding path program 1 times
[2023-11-19 08:01:59,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:59,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784408815]
[2023-11-19 08:01:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:59,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:01:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:01:59,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:01:59,354 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:59,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:59,354 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:59,354 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:59,355 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:01:59,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:59,355 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:59,355 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2023-11-19 08:01:59,355 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:59,355 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:59,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,428 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:59,428 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:01:59,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,442 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,446 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,446 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,484 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:59,484 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: []
[2023-11-19 08:01:59,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,509 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,513 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,513 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,540 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:59,540 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: []
[2023-11-19 08:01:59,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,564 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,571 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,594 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:59,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2023-11-19 08:01:59,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,614 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,618 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,636 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:59,636 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: []
[2023-11-19 08:01:59,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0
[2023-11-19 08:01:59,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,652 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,655 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,673 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:01:59,673 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: []
[2023-11-19 08:01:59,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0
[2023-11-19 08:01:59,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,690 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:01:59,692 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,717 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,719 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:01:59,719 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:01:59,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:01:59,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,833 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:01:59,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:01:59,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:01:59,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:01:59,834 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:01:59,834 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,834 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:01:59,834 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:01:59,834 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration5_Loop
[2023-11-19 08:01:59,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:01:59,834 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:01:59,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,838 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,851 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:01:59,921 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:01:59,922 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:01:59,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,923 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,927 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
[2023-11-19 08:01:59,939 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:59,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:59,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:59,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:59,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:59,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:59,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:59,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process
[2023-11-19 08:01:59,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:01:59,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:59,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:01:59,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:59,978 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:59,984 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
[2023-11-19 08:01:59,997 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:01:59,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:01:59,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:01:59,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:01:59,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:01:59,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:01:59,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:01:59,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,012 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:00,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,036 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,044 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
[2023-11-19 08:02:00,057 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:00,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:02:00,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:00,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:00,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:00,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:02:00,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:02:00,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,072 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:00,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,096 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,100 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
[2023-11-19 08:02:00,113 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:00,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:00,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:00,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:00,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 08:02:00,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 08:02:00,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:00,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,161 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,163 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
[2023-11-19 08:02:00,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,175 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:00,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:02:00,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:00,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:00,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:00,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:02:00,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:02:00,192 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:02:00,196 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2023-11-19 08:02:00,197 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 08:02:00,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,198 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:02:00,200 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:02:00,200 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:02:00,200 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 []
[2023-11-19 08:02:00,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,225 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:02:00,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:00,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:02:00,246 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:00,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:02:00,266 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:00,294 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
[2023-11-19 08:02:00,294 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)
[2023-11-19 08:02:00,330 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.
[2023-11-19 08:02:00,331 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
[2023-11-19 08:02:00,334 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)
[2023-11-19 08:02:00,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions.
[2023-11-19 08:02:00,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters.
[2023-11-19 08:02:00,337 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:00,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters.
[2023-11-19 08:02:00,337 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:00,337 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters.
[2023-11-19 08:02:00,338 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:00,338 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 321 transitions.
[2023-11-19 08:02:00,344 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25
[2023-11-19 08:02:00,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 145 states and 231 transitions.
[2023-11-19 08:02:00,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41
[2023-11-19 08:02:00,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46
[2023-11-19 08:02:00,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 231 transitions.
[2023-11-19 08:02:00,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:02:00,352 INFO L218 hiAutomatonCegarLoop]: Abstraction has 145 states and 231 transitions.
[2023-11-19 08:02:00,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 231 transitions.
[2023-11-19 08:02:00,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 119.
[2023-11-19 08:02:00,372 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)
[2023-11-19 08:02:00,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 195 transitions.
[2023-11-19 08:02:00,376 INFO L240 hiAutomatonCegarLoop]: Abstraction has 119 states and 195 transitions.
[2023-11-19 08:02:00,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:00,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-19 08:02:00,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-19 08:02:00,380 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)
[2023-11-19 08:02:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:00,404 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions.
[2023-11-19 08:02:00,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 121 transitions.
[2023-11-19 08:02:00,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2023-11-19 08:02:00,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 65 states and 95 transitions.
[2023-11-19 08:02:00,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21
[2023-11-19 08:02:00,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21
[2023-11-19 08:02:00,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 95 transitions.
[2023-11-19 08:02:00,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 08:02:00,409 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 95 transitions.
[2023-11-19 08:02:00,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 95 transitions.
[2023-11-19 08:02:00,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42.
[2023-11-19 08:02:00,423 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)
[2023-11-19 08:02:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 64 transitions.
[2023-11-19 08:02:00,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 64 transitions.
[2023-11-19 08:02:00,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-19 08:02:00,425 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 64 transitions.
[2023-11-19 08:02:00,426 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============
[2023-11-19 08:02:00,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 64 transitions.
[2023-11-19 08:02:00,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2023-11-19 08:02:00,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 08:02:00,427 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 08:02:00,428 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1]
[2023-11-19 08:02:00,428 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 08:02:00,428 INFO L748 eck$LassoCheckResult]: Stem: 1344#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 1350#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1362#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1358#L20 assume 0 != main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~x~0#1 := main_~x~0#1 - 1;havoc main_#t~nondet3#1;main_~y~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 1379#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1354#L19
[2023-11-19 08:02:00,428 INFO L750 eck$LassoCheckResult]: Loop: 1354#L19 assume main_~x~0#1 > 0;havoc main_#t~nondet2#1; 1351#L20 assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;main_~y~0#1 := main_~y~0#1 - 1; 1352#L27-2 assume !!(0 != main_~x~0#1 && main_~y~0#1 > 0); 1354#L19
[2023-11-19 08:02:00,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash 889692416, now seen corresponding path program 3 times
[2023-11-19 08:02:00,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:00,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227903558]
[2023-11-19 08:02:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:00,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:02:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:02:00,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:00,454 INFO L85 PathProgramCache]: Analyzing trace with hash 43845, now seen corresponding path program 2 times
[2023-11-19 08:02:00,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:00,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520211621]
[2023-11-19 08:02:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:00,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,458 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:02:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:02:00,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:00,462 INFO L85 PathProgramCache]: Analyzing trace with hash 583595494, now seen corresponding path program 1 times
[2023-11-19 08:02:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:00,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214265259]
[2023-11-19 08:02:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:00,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 08:02:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 08:02:00,472 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 08:02:00,499 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:02:00,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:02:00,499 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:02:00,499 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:02:00,500 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 08:02:00,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:02:00,500 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:02:00,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop
[2023-11-19 08:02:00,500 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:02:00,500 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:02:00,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,552 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:02:00,552 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 08:02:00,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,554 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:02:00,559 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,581 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:02:00,581 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: []
[2023-11-19 08:02:00,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,601 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:02:00,604 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,640 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:02:00,640 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: []
[2023-11-19 08:02:00,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,661 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:02:00,664 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,686 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:02:00,687 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: []
[2023-11-19 08:02:00,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,708 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:02:00,711 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,733 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 08:02:00,733 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: []
[2023-11-19 08:02:00,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:00,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,754 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 08:02:00,756 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0
[2023-11-19 08:02:00,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,791 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 08:02:00,793 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 08:02:00,874 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 08:02:00,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0
[2023-11-19 08:02:00,877 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 08:02:00,877 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 08:02:00,877 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 08:02:00,878 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 08:02:00,878 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 08:02:00,878 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,878 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 08:02:00,878 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 08:02:00,878 INFO L133 ssoRankerPreferences]: Filename of dumped script: UrbanMine-ESOP2014-Fig3.c_Iteration6_Loop
[2023-11-19 08:02:00,878 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 08:02:00,878 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 08:02:00,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2023-11-19 08:02:00,952 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 08:02:00,952 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 08:02:00,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:00,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:00,953 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:00,960 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
[2023-11-19 08:02:00,973 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:00,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:02:00,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:00,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:00,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:00,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:02:00,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:02:00,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process
[2023-11-19 08:02:00,996 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:01,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:01,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,016 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,018 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
[2023-11-19 08:02:01,031 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:01,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:02:01,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:01,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:01,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:01,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:02:01,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:02:01,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,046 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:01,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:01,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,067 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,069 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
[2023-11-19 08:02:01,082 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:01,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:01,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:01,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:01,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 08:02:01,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 08:02:01,112 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:01,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:01,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,131 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,134 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
[2023-11-19 08:02:01,147 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:01,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:01,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:01,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:01,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 08:02:01,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 08:02:01,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,168 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 08:02:01,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,188 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,191 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
[2023-11-19 08:02:01,203 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 08:02:01,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 08:02:01,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 08:02:01,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 08:02:01,204 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 08:02:01,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 08:02:01,205 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 08:02:01,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,210 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 08:02:01,211 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver.
[2023-11-19 08:02:01,211 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 08:02:01,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 08:02:01,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:01,212 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 08:02:01,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process
[2023-11-19 08:02:01,214 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 08:02:01,214 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 08:02:01,214 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 08:02:01,214 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 []
[2023-11-19 08:02:01,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0
[2023-11-19 08:02:01,227 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 08:02:01,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,251 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,280 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:01,292 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
[2023-11-19 08:02:01,292 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)
[2023-11-19 08:02:01,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0
[2023-11-19 08:02:01,313 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.
[2023-11-19 08:02:01,314 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
[2023-11-19 08:02:01,314 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)
[2023-11-19 08:02:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2023-11-19 08:02:01,315 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2023-11-19 08:02:01,315 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:01,315 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 08:02:01,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,331 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,343 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:01,355 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
[2023-11-19 08:02:01,355 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)
[2023-11-19 08:02:01,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,373 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.
[2023-11-19 08:02:01,374 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
[2023-11-19 08:02:01,375 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)
[2023-11-19 08:02:01,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions.
[2023-11-19 08:02:01,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters.
[2023-11-19 08:02:01,375 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:01,375 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 08:02:01,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,391 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:01,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 08:02:01,402 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 08:02:01,413 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
[2023-11-19 08:02:01,414 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)
[2023-11-19 08:02:01,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:01,434 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.
[2023-11-19 08:02:01,434 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
[2023-11-19 08:02:01,435 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)
[2023-11-19 08:02:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions.
[2023-11-19 08:02:01,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 3 letters.
[2023-11-19 08:02:01,436 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:01,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 3 letters.
[2023-11-19 08:02:01,436 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:01,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 6 letters.
[2023-11-19 08:02:01,437 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 08:02:01,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 129 transitions.
[2023-11-19 08:02:01,439 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2023-11-19 08:02:01,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 0 states and 0 transitions.
[2023-11-19 08:02:01,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2023-11-19 08:02:01,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2023-11-19 08:02:01,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2023-11-19 08:02:01,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 08:02:01,439 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 08:02:01,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 08:02:01,440 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 08:02:01,440 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============
[2023-11-19 08:02:01,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2023-11-19 08:02:01,440 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2023-11-19 08:02:01,440 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2023-11-19 08:02:01,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:02:01 BoogieIcfgContainer
[2023-11-19 08:02:01,449 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2023-11-19 08:02:01,449 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 08:02:01,449 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 08:02:01,450 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 08:02:01,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:54" (3/4) ...
[2023-11-19 08:02:01,452 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 08:02:01,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 08:02:01,454 INFO L158 Benchmark]: Toolchain (without parser) took 6963.01ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 102.0MB in the beginning and 148.3MB in the end (delta: -46.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB.
[2023-11-19 08:02:01,455 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 144.7MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:01,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.46ms. Allocated memory is still 144.7MB. Free memory was 102.0MB in the beginning and 92.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 08:02:01,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.05ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:01,456 INFO L158 Benchmark]: Boogie Preprocessor took 19.39ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 89.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 08:02:01,456 INFO L158 Benchmark]: RCFGBuilder took 237.58ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 81.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 08:02:01,457 INFO L158 Benchmark]: BuchiAutomizer took 6463.19ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 81.0MB in the beginning and 148.3MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:01,457 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 195.0MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 08:02:01,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.59ms. Allocated memory is still 144.7MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 202.46ms. Allocated memory is still 144.7MB. Free memory was 102.0MB in the beginning and 92.5MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 30.05ms. Allocated memory is still 144.7MB. Free memory was 92.5MB in the beginning and 91.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 19.39ms. Allocated memory is still 144.7MB. Free memory was 91.0MB in the beginning and 89.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 237.58ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 81.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 6463.19ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 81.0MB in the beginning and 148.3MB in the end (delta: -67.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.61ms. Allocated memory is still 195.0MB. Free memory is still 148.3MB. There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (-1 * x) and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function (-1 * x) and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 6.4s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. 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 0.1s 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, 116 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 138 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 99 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf94 smp88 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
[2023-11-19 08:02:01,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d70e78-ce7b-4872-a5ba-b6d184958ac0/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE