./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/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_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/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_826b2075-0640-4f1e-b2ef-609d721076a4/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 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:39:46,181 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:39:46,288 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf
[2023-11-19 07:39:46,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:39:46,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:39:46,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:39:46,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:39:46,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:39:46,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:39:46,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:39:46,352 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:39:46,353 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2023-11-19 07:39:46,354 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2023-11-19 07:39:46,355 INFO L153 SettingsManager]: * Use old map elimination=false
[2023-11-19 07:39:46,356 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2023-11-19 07:39:46,356 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2023-11-19 07:39:46,357 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2023-11-19 07:39:46,358 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:39:46,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2023-11-19 07:39:46,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:39:46,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:39:46,360 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2023-11-19 07:39:46,360 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2023-11-19 07:39:46,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2023-11-19 07:39:46,361 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:39:46,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:39:46,362 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2023-11-19 07:39:46,363 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:39:46,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:39:46,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:39:46,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:39:46,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:39:46,366 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2023-11-19 07:39:46,366 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_826b2075-0640-4f1e-b2ef-609d721076a4/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d6528b7cc69fe4ab1ae178e84639571fa28bd084493b226ea467e9ac1e22d5f
[2023-11-19 07:39:46,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:39:46,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:39:46,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:39:46,764 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:39:46,764 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:39:46,766 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c
[2023-11-19 07:39:49,827 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:39:50,041 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:39:50,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2.c
[2023-11-19 07:39:50,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/data/a0a3678a3/9e00b87fb6e647b7a754a02c455ccbb9/FLAGf5da36d11
[2023-11-19 07:39:50,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/data/a0a3678a3/9e00b87fb6e647b7a754a02c455ccbb9
[2023-11-19 07:39:50,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:39:50,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:39:50,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:50,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:39:50,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:39:50,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c20b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50, skipping insertion in model container
[2023-11-19 07:39:50,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,109 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:39:50,253 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:50,258 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:39:50,272 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:50,286 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:39:50,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50 WrapperNode
[2023-11-19 07:39:50,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:50,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:50,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:39:50,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:39:50,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,327 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23
[2023-11-19 07:39:50,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:50,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:39:50,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:39:50,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:39:50,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:39:50,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:39:50,352 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:39:50,352 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:39:50,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (1/1) ...
[2023-11-19 07:39:50,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:50,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:50,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:50,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:39:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:39:50,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:39:50,547 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:39:50,549 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:39:50,647 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:39:50,660 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:39:50,660 INFO L302 CfgBuilder]: Removed 2 assume(true) statements.
[2023-11-19 07:39:50,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:50 BoogieIcfgContainer
[2023-11-19 07:39:50,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:39:50,665 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2023-11-19 07:39:50,665 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2023-11-19 07:39:50,676 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2023-11-19 07:39:50,677 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:50,677 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:39:50" (1/3) ...
[2023-11-19 07:39:50,678 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@98bed1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:50, skipping insertion in model container
[2023-11-19 07:39:50,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:50,679 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:50" (2/3) ...
[2023-11-19 07:39:50,679 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@98bed1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:50, skipping insertion in model container
[2023-11-19 07:39:50,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:50,680 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:50" (3/3) ...
[2023-11-19 07:39:50,684 INFO L332 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2.c
[2023-11-19 07:39:50,762 INFO L303 stractBuchiCegarLoop]: Interprodecural is true
[2023-11-19 07:39:50,762 INFO L304 stractBuchiCegarLoop]: Hoare is false
[2023-11-19 07:39:50,762 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2023-11-19 07:39:50,763 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2023-11-19 07:39:50,763 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2023-11-19 07:39:50,763 INFO L308 stractBuchiCegarLoop]: Difference is false
[2023-11-19 07:39:50,765 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2023-11-19 07:39:50,766 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2023-11-19 07:39:50,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 07:39:50,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2023-11-19 07:39:50,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:50,792 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:50,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 07:39:50,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 07:39:50,798 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2023-11-19 07:39:50,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 07:39:50,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2023-11-19 07:39:50,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:50,802 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:50,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 07:39:50,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2023-11-19 07:39:50,811 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17-2true
[2023-11-19 07:39:50,812 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 2#L19-2true assume !(main_~y~0#1 < main_~x~0#1); 9#L19-3true main_~x~0#1 := main_~x~0#1 - 1; 4#L17-2true
[2023-11-19 07:39:50,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2023-11-19 07:39:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:50,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007041770]
[2023-11-19 07:39:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:50,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:50,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:50,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times
[2023-11-19 07:39:50,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:50,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063691566]
[2023-11-19 07:39:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:50,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:50,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:50,978 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:50,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times
[2023-11-19 07:39:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:50,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497061425]
[2023-11-19 07:39:50,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:51,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:51,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:51,168 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:51,171 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:51,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:51,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:51,174 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 07:39:51,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:51,175 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:51,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop
[2023-11-19 07:39:51,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:51,176 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:51,193 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 07:39:51,203 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 07:39:51,207 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 07:39:51,212 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 07:39:51,284 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:51,285 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 07:39:51,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:51,319 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:51,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,349 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:51,349 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 07:39:51,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,363 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,369 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:51,370 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:51,390 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:51,390 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 07:39:51,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:51,418 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:51,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,431 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:51,431 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 07:39:51,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:51,469 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:51,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 07:39:51,532 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:51,565 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 07:39:51,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,589 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:51,590 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:51,590 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:51,590 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:51,590 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 07:39:51,590 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,590 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:51,590 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:51,590 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration1_Loop
[2023-11-19 07:39:51,591 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:51,591 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:51,593 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 07:39:51,598 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 07:39:51,602 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 07:39:51,612 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 07:39:51,666 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:51,671 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 07:39:51,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,674 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,698 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 07:39:51,711 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:51,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:51,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:51,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:51,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 07:39:51,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 07:39:51,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 07:39:51,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,764 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,768 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 07:39:51,777 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:51,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:51,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:51,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:51,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 07:39:51,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 07:39:51,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 07:39:51,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,833 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 07:39:51,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,845 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:51,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 07:39:51,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:51,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:51,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:51,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 07:39:51,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 07:39:51,852 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 07:39:51,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2023-11-19 07:39:51,855 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 07:39:51,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:51,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:51,886 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2023-11-19 07:39:51,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 07:39:51,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 07:39:51,888 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 07:39:51,889 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1
Supporting invariants []
[2023-11-19 07:39:51,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:51,904 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 07:39:51,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:51,939 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:39:51,940 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:51,954 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:39:51,954 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:51,984 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 07:39:52,019 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 07:39:52,021 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 07:39:52,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 22 states and 34 transitions. Complement of second has 8 states.
[2023-11-19 07:39:52,080 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 07:39:52,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 07:39:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions.
[2023-11-19 07:39:52,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters.
[2023-11-19 07:39:52,088 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters.
[2023-11-19 07:39:52,089 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters.
[2023-11-19 07:39:52,089 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions.
[2023-11-19 07:39:52,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:52,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 11 transitions.
[2023-11-19 07:39:52,098 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4
[2023-11-19 07:39:52,098 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5
[2023-11-19 07:39:52,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions.
[2023-11-19 07:39:52,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 07:39:52,099 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions.
[2023-11-19 07:39:52,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions.
[2023-11-19 07:39:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7.
[2023-11-19 07:39:52,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 07:39:52,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions.
[2023-11-19 07:39:52,128 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions.
[2023-11-19 07:39:52,128 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions.
[2023-11-19 07:39:52,128 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============
[2023-11-19 07:39:52,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions.
[2023-11-19 07:39:52,129 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:52,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:52,129 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:52,130 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2023-11-19 07:39:52,130 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2023-11-19 07:39:52,130 INFO L748 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#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_~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; 76#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 73#L19-2
[2023-11-19 07:39:52,130 INFO L750 eck$LassoCheckResult]: Loop: 73#L19-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 73#L19-2
[2023-11-19 07:39:52,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,131 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times
[2023-11-19 07:39:52,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596857657]
[2023-11-19 07:39:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:52,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,141 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times
[2023-11-19 07:39:52,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301040646]
[2023-11-19 07:39:52,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,147 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:52,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times
[2023-11-19 07:39:52,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993397071]
[2023-11-19 07:39:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,163 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:52,179 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:52,180 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:52,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:52,180 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:52,180 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 07:39:52,180 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,180 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:52,180 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:52,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop
[2023-11-19 07:39:52,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:52,181 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:52,183 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 07:39:52,186 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 07:39:52,190 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 07:39:52,230 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:52,231 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 07:39:52,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,232 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:52,245 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:52,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,268 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:52,268 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 07:39:52,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,294 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:52,307 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:52,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,333 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:52,333 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 07:39:52,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,359 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:52,362 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:52,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,413 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 07:39:52,417 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:52,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,619 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 07:39:52,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,623 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:52,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:52,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:52,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:52,623 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 07:39:52,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:52,624 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:52,624 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration2_Loop
[2023-11-19 07:39:52,624 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:52,624 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:52,625 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 07:39:52,629 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 07:39:52,637 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 07:39:52,682 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:52,682 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 07:39:52,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,684 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,690 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2023-11-19 07:39:52,703 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:52,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:52,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:52,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:52,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,712 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 07:39:52,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 07:39:52,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 07:39:52,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,752 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,766 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 07:39:52,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,779 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:52,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 07:39:52,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:52,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:52,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:52,784 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 07:39:52,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 07:39:52,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 07:39:52,807 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2023-11-19 07:39:52,807 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero.
[2023-11-19 07:39:52,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:52,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:52,810 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:52,817 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 07:39:52,817 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 07:39:52,817 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 07:39:52,817 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2023-11-19 07:39:52,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process
[2023-11-19 07:39:52,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:52,843 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 07:39:52,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:52,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:39:52,877 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:52,886 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:39:52,886 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:52,887 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 07:39:52,888 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates
[2023-11-19 07:39:52,888 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:52,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states.
[2023-11-19 07:39:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2023-11-19 07:39:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2023-11-19 07:39:52,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters.
[2023-11-19 07:39:52,908 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters.
[2023-11-19 07:39:52,909 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters.
[2023-11-19 07:39:52,909 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:52,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions.
[2023-11-19 07:39:52,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:52,911 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions.
[2023-11-19 07:39:52,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4
[2023-11-19 07:39:52,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4
[2023-11-19 07:39:52,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions.
[2023-11-19 07:39:52,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2023-11-19 07:39:52,912 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions.
[2023-11-19 07:39:52,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions.
[2023-11-19 07:39:52,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7.
[2023-11-19 07:39:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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 07:39:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions.
[2023-11-19 07:39:52,915 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions.
[2023-11-19 07:39:52,915 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions.
[2023-11-19 07:39:52,915 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============
[2023-11-19 07:39:52,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions.
[2023-11-19 07:39:52,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:52,916 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:52,916 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:52,917 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1]
[2023-11-19 07:39:52,917 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2023-11-19 07:39:52,917 INFO L748 eck$LassoCheckResult]: Stem: 130#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 128#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 126#L19-2 assume !(main_~y~0#1 < main_~x~0#1); 127#L19-3 main_~x~0#1 := main_~x~0#1 - 1; 129#L17-2 assume !!(main_~x~0#1 >= 0);main_~y~0#1 := 1; 125#L19-2
[2023-11-19 07:39:52,918 INFO L750 eck$LassoCheckResult]: Loop: 125#L19-2 assume !!(main_~y~0#1 < main_~x~0#1);main_~y~0#1 := 1 + main_~y~0#1; 125#L19-2
[2023-11-19 07:39:52,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,918 INFO L85 PathProgramCache]: Analyzing trace with hash 889696477, now seen corresponding path program 2 times
[2023-11-19 07:39:52,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002565443]
[2023-11-19 07:39:52,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:52,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,934 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times
[2023-11-19 07:39:52,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731187710]
[2023-11-19 07:39:52,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:52,943 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:52,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:52,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1810787031, now seen corresponding path program 1 times
[2023-11-19 07:39:52,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:52,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897234845]
[2023-11-19 07:39:52,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:39:53,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 07:39:53,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897234845]
[2023-11-19 07:39:53,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897234845] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 07:39:53,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26506588]
[2023-11-19 07:39:53,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:53,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 07:39:53,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,045 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,094 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:39:53,160 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 07:39:53,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 07:39:53,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26506588] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 07:39:53,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 07:39:53,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9
[2023-11-19 07:39:53,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402180337]
[2023-11-19 07:39:53,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 07:39:53,257 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:53,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:53,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:53,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:53,258 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2023-11-19 07:39:53,258 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,258 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:53,258 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:53,258 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop
[2023-11-19 07:39:53,258 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:53,258 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:53,260 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 07:39:53,265 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 07:39:53,272 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 07:39:53,315 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:53,315 INFO L404 LassoAnalysis]: Checking for nontermination...
[2023-11-19 07:39:53,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,317 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:53,325 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:53,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,353 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2023-11-19 07:39:53,353 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 07:39:53,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,375 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2023-11-19 07:39:53,388 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:53,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,434 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2023-11-19 07:39:53,436 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2023-11-19 07:39:53,600 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2023-11-19 07:39:53,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,603 INFO L210 LassoAnalysis]: Preferences:
[2023-11-19 07:39:53,603 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2023-11-19 07:39:53,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2023-11-19 07:39:53,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2023-11-19 07:39:53,604 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2023-11-19 07:39:53,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,604 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2023-11-19 07:39:53,604 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2023-11-19 07:39:53,604 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig2.c_Iteration3_Loop
[2023-11-19 07:39:53,604 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2023-11-19 07:39:53,604 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2023-11-19 07:39:53,605 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 07:39:53,615 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 07:39:53,622 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 07:39:53,664 INFO L294 LassoAnalysis]: Preprocessing complete.
[2023-11-19 07:39:53,664 INFO L490 LassoAnalysis]: Using template 'affine'.
[2023-11-19 07:39:53,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,670 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,682 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 07:39:53,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,695 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:53,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:53,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:53,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:53,699 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications.
[2023-11-19 07:39:53,699 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added.
[2023-11-19 07:39:53,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2023-11-19 07:39:53,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,731 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,733 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 07:39:53,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,747 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2023-11-19 07:39:53,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2023-11-19 07:39:53,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2023-11-19 07:39:53,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2023-11-19 07:39:53,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2023-11-19 07:39:53,750 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2023-11-19 07:39:53,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2023-11-19 07:39:53,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2023-11-19 07:39:53,778 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver.
[2023-11-19 07:39:53,778 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero.
[2023-11-19 07:39:53,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:53,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:53,788 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:53,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2023-11-19 07:39:53,792 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2023-11-19 07:39:53,792 INFO L513 LassoAnalysis]: Proved termination.
[2023-11-19 07:39:53,792 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1
Supporting invariants []
[2023-11-19 07:39:53,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process
[2023-11-19 07:39:53,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,809 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2023-11-19 07:39:53,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:53,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,838 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,879 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,879 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:53,879 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 07:39:53,880 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates
[2023-11-19 07:39:53,880 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:53,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,925 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states.
[2023-11-19 07:39:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2023-11-19 07:39:53,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:53,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2023-11-19 07:39:53,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters.
[2023-11-19 07:39:53,927 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:53,927 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 07:39:53,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,949 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,963 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,963 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:53,963 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 07:39:53,964 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates
[2023-11-19 07:39:53,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:53,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:53,977 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 12 states and 16 transitions. Complement of second has 5 states.
[2023-11-19 07:39:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2023-11-19 07:39:53,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions.
[2023-11-19 07:39:53,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 1 letters.
[2023-11-19 07:39:53,979 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:53,979 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted
[2023-11-19 07:39:53,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:53,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 07:39:53,997 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 07:39:54,013 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-19 07:39:54,014 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 07:39:54,014 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 07:39:54,015 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 1 loop predicates
[2023-11-19 07:39:54,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:54,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2023-11-19 07:39:54,034 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 10 states and 12 transitions. Complement of second has 4 states.
[2023-11-19 07:39:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states
[2023-11-19 07:39:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 07:39:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions.
[2023-11-19 07:39:54,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 1 letters.
[2023-11-19 07:39:54,036 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:54,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters.
[2023-11-19 07:39:54,037 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:54,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 2 letters.
[2023-11-19 07:39:54,037 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2023-11-19 07:39:54,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions.
[2023-11-19 07:39:54,038 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2023-11-19 07:39:54,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions.
[2023-11-19 07:39:54,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2023-11-19 07:39:54,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2023-11-19 07:39:54,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2023-11-19 07:39:54,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:54,039 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:39:54,039 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:39:54,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 07:39:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2023-11-19 07:39:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2023-11-19 07:39:54,044 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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 07:39:54,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 07:39:54,047 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions.
[2023-11-19 07:39:54,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions.
[2023-11-19 07:39:54,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2023-11-19 07:39:54,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions.
[2023-11-19 07:39:54,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2023-11-19 07:39:54,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2023-11-19 07:39:54,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2023-11-19 07:39:54,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2023-11-19 07:39:54,049 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:39:54,049 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:39:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-11-19 07:39:54,050 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2023-11-19 07:39:54,050 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============
[2023-11-19 07:39:54,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2023-11-19 07:39:54,050 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2023-11-19 07:39:54,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2023-11-19 07:39:54,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:39:54 BoogieIcfgContainer
[2023-11-19 07:39:54,059 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2023-11-19 07:39:54,059 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:39:54,060 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:39:54,060 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:39:54,060 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:50" (3/4) ...
[2023-11-19 07:39:54,063 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2023-11-19 07:39:54,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:39:54,065 INFO L158 Benchmark]: Toolchain (without parser) took 3992.09ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 93.5MB in the beginning and 145.3MB in the end (delta: -51.8MB). Peak memory consumption was 551.5kB. Max. memory is 16.1GB.
[2023-11-19 07:39:54,065 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 108.7MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:54,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.21ms. Allocated memory is still 136.3MB. Free memory was 93.5MB in the beginning and 84.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:39:54,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.41ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:39:54,067 INFO L158 Benchmark]: Boogie Preprocessor took 22.82ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 971.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:54,068 INFO L158 Benchmark]: RCFGBuilder took 312.40ms. Allocated memory is still 136.3MB. Free memory was 81.9MB in the beginning and 73.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:39:54,068 INFO L158 Benchmark]: BuchiAutomizer took 3393.71ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 145.3MB in the end (delta: -72.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:54,069 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 186.6MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:54,072 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.54ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 108.7MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 213.21ms. Allocated memory is still 136.3MB. Free memory was 93.5MB in the beginning and 84.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 39.41ms. Allocated memory is still 136.3MB. Free memory was 84.0MB in the beginning and 82.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 22.82ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 971.7kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 312.40ms. Allocated memory is still 136.3MB. Free memory was 81.9MB in the beginning and 73.0MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* BuchiAutomizer took 3393.71ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 73.0MB in the beginning and 145.3MB in the end (delta: -72.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.53ms. Allocated memory is still 186.6MB. Free memory is still 145.3MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((2 * x) + 1) and consists of 5 locations. One deterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * y) + x) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 10 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 3.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 19 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax191 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 76ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s 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 07:39:54,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2023-11-19 07:39:54,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_826b2075-0640-4f1e-b2ef-609d721076a4/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