./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 727b654585befeb7272249307a5de272b17c4e2d2d1afa67fd11f4eb185d7508
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 17:33:32,436 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 17:33:32,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 17:33:32,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 17:33:32,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 17:33:32,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 17:33:32,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 17:33:32,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 17:33:32,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 17:33:32,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 17:33:32,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 17:33:32,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 17:33:32,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 17:33:32,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 17:33:32,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 17:33:32,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 17:33:32,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 17:33:32,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 17:33:32,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 17:33:32,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 17:33:32,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 17:33:32,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 17:33:32,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 17:33:32,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 17:33:32,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 17:33:32,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 17:33:32,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 17:33:32,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 17:33:32,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 17:33:32,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 17:33:32,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 17:33:32,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 17:33:32,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 17:33:32,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 17:33:32,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 17:33:32,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 17:33:32,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 17:33:32,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 17:33:32,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 17:33:32,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 17:33:32,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 17:33:32,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-11-13 17:33:32,611 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 17:33:32,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 17:33:32,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 17:33:32,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 17:33:32,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 17:33:32,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 17:33:32,618 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 17:33:32,618 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-11-13 17:33:32,619 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-11-13 17:33:32,619 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-11-13 17:33:32,620 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-11-13 17:33:32,620 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-11-13 17:33:32,621 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-11-13 17:33:32,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 17:33:32,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 17:33:32,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 17:33:32,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 17:33:32,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-11-13 17:33:32,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-11-13 17:33:32,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-11-13 17:33:32,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 17:33:32,623 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-11-13 17:33:32,623 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 17:33:32,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-11-13 17:33:32,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 17:33:32,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 17:33:32,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 17:33:32,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 17:33:32,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 17:33:32,627 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-11-13 17:33:32,627 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 727b654585befeb7272249307a5de272b17c4e2d2d1afa67fd11f4eb185d7508
[2021-11-13 17:33:32,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 17:33:32,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 17:33:32,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 17:33:32,905 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 17:33:32,906 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 17:33:32,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c
[2021-11-13 17:33:32,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/data/b3a733d63/3eb2ed492dd74a7281b56ad80e943ec7/FLAGb84b86952
[2021-11-13 17:33:33,450 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 17:33:33,450 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c
[2021-11-13 17:33:33,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/data/b3a733d63/3eb2ed492dd74a7281b56ad80e943ec7/FLAGb84b86952
[2021-11-13 17:33:33,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/data/b3a733d63/3eb2ed492dd74a7281b56ad80e943ec7
[2021-11-13 17:33:33,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 17:33:33,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 17:33:33,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 17:33:33,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 17:33:33,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 17:33:33,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:33" (1/1) ...
[2021-11-13 17:33:33,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9f9db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:33, skipping insertion in model container
[2021-11-13 17:33:33,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:33:33" (1/1) ...
[2021-11-13 17:33:33,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 17:33:33,864 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 17:33:34,036 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:33:34,041 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 17:33:34,057 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 17:33:34,071 INFO L208 MainTranslator]: Completed translation
[2021-11-13 17:33:34,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34 WrapperNode
[2021-11-13 17:33:34,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 17:33:34,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 17:33:34,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 17:33:34,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 17:33:34,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 17:33:34,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 17:33:34,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 17:33:34,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 17:33:34,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 17:33:34,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 17:33:34,126 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 17:33:34,126 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 17:33:34,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (1/1) ...
[2021-11-13 17:33:34,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:34,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:34,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:34,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-11-13 17:33:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2021-11-13 17:33:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2021-11-13 17:33:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure g
[2021-11-13 17:33:34,218 INFO L138 BoogieDeclarations]: Found implementation of procedure g
[2021-11-13 17:33:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 17:33:34,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 17:33:34,403 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 17:33:34,403 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-13 17:33:34,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:34 BoogieIcfgContainer
[2021-11-13 17:33:34,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 17:33:34,406 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-11-13 17:33:34,406 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-11-13 17:33:34,415 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-11-13 17:33:34,416 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 17:33:34,416 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 05:33:33" (1/3) ...
[2021-11-13 17:33:34,418 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f5e6206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:33:34, skipping insertion in model container
[2021-11-13 17:33:34,418 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 17:33:34,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:33:34" (2/3) ...
[2021-11-13 17:33:34,419 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f5e6206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 05:33:34, skipping insertion in model container
[2021-11-13 17:33:34,419 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 17:33:34,419 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:34" (3/3) ...
[2021-11-13 17:33:34,421 INFO L388 chiAutomizerObserver]: Analyzing ICFG MutualRecursion_1a.c
[2021-11-13 17:33:34,483 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-11-13 17:33:34,483 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-11-13 17:33:34,483 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-11-13 17:33:34,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-11-13 17:33:34,483 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-11-13 17:33:34,484 INFO L364 BuchiCegarLoop]: Difference is false
[2021-11-13 17:33:34,484 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-11-13 17:33:34,484 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-11-13 17:33:34,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2021-11-13 17:33:34,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:34,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 17:33:34,534 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 17:33:34,541 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-11-13 17:33:34,541 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:34,541 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-11-13 17:33:34,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2021-11-13 17:33:34,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:34,547 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 17:33:34,547 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 17:33:34,548 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-11-13 17:33:34,548 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:34,555 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 14#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~ret5#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 13#L26true call main_#t~ret5#1 := g(main_~x~0#1);< 15#gENTRYtrue
[2021-11-13 17:33:34,555 INFO L793 eck$LassoCheckResult]: Loop: 15#gENTRYtrue ~x := #in~x; 7#L19true assume !(~x <= 0); 12#L20true call #t~ret2 := f(~x - 1);< 16#fENTRYtrue ~x := #in~x; 19#L13true assume !(~x <= 0); 10#L14true call #t~ret0 := g(~x);< 15#gENTRYtrue
[2021-11-13 17:33:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:34,561 INFO L85 PathProgramCache]: Analyzing trace with hash 47743, now seen corresponding path program 1 times
[2021-11-13 17:33:34,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:34,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865405617]
[2021-11-13 17:33:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:34,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1158065693, now seen corresponding path program 1 times
[2021-11-13 17:33:34,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:34,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580073159]
[2021-11-13 17:33:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:34,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,735 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:34,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1788538341, now seen corresponding path program 1 times
[2021-11-13 17:33:34,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:34,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030008014]
[2021-11-13 17:33:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:34,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,775 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:34,794 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:35,093 INFO L210 LassoAnalysis]: Preferences:
[2021-11-13 17:33:35,094 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-11-13 17:33:35,094 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-11-13 17:33:35,094 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-11-13 17:33:35,094 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-11-13 17:33:35,094 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,094 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-11-13 17:33:35,094 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-11-13 17:33:35,094 INFO L133 ssoRankerPreferences]: Filename of dumped script: MutualRecursion_1a.c_Iteration1_Loop
[2021-11-13 17:33:35,094 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-11-13 17:33:35,095 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-11-13 17:33:35,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,226 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-11-13 17:33:35,226 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-11-13 17:33:35,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 17:33:35,241 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,273 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 17:33:35,273 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#res=0} Honda state: {f_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 17:33:35,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 17:33:35,325 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,336 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 17:33:35,336 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret2=0} Honda state: {g_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 17:33:35,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2021-11-13 17:33:35,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 17:33:35,382 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,393 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 17:33:35,394 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#t~ret3=0} Honda state: {g_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 17:33:35,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0
[2021-11-13 17:33:35,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 17:33:35,420 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,431 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 17:33:35,431 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g_#res=0} Honda state: {g_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 17:33:35,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,453 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 17:33:35,455 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-11-13 17:33:35,512 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 17:33:35,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-11-13 17:33:35,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,622 INFO L210 LassoAnalysis]: Preferences:
[2021-11-13 17:33:35,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-11-13 17:33:35,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-11-13 17:33:35,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-11-13 17:33:35,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-11-13 17:33:35,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-11-13 17:33:35,623 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-11-13 17:33:35,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: MutualRecursion_1a.c_Iteration1_Loop
[2021-11-13 17:33:35,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-11-13 17:33:35,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-11-13 17:33:35,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-11-13 17:33:35,719 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-11-13 17:33:35,723 INFO L490 LassoAnalysis]: Using template 'affine'.
[2021-11-13 17:33:35,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,742 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:35,757 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:35,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:35,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:35,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:35,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:35,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:35,760 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:35,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:35,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:35,815 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:35,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:35,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:35,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:35,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:35,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:35,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:35,818 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:35,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,842 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:35,850 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:35,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:35,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:35,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:35,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:35,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:35,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:35,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:35,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0
[2021-11-13 17:33:35,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,882 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process
[2021-11-13 17:33:35,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:35,894 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:35,894 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:35,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:35,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:35,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:35,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:35,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:35,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:35,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:35,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:35,960 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:35,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:35,986 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:35,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:35,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:35,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:35,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:35,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:35,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:35,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process
[2021-11-13 17:33:36,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:36,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:36,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:36,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:36,046 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:36,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process
[2021-11-13 17:33:36,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:36,059 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:36,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:36,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:36,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:36,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:36,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:36,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:36,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.
[2021-11-13 17:33:36,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0
[2021-11-13 17:33:36,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:36,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:36,090 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:36,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process
[2021-11-13 17:33:36,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false
[2021-11-13 17:33:36,107 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-11-13 17:33:36,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-11-13 17:33:36,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-11-13 17:33:36,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-11-13 17:33:36,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-11-13 17:33:36,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-11-13 17:33:36,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-11-13 17:33:36,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-11-13 17:33:36,129 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-11-13 17:33:36,129 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
[2021-11-13 17:33:36,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 17:33:36,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 17:33:36,136 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 17:33:36,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-11-13 17:33:36,141 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-11-13 17:33:36,142 INFO L513 LassoAnalysis]: Proved termination.
[2021-11-13 17:33:36,142 INFO L515 LassoAnalysis]: Termination argument consisting of:
Ranking function f(g_#in~x) = 1*g_#in~x
Supporting invariants []
[2021-11-13 17:33:36,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process
[2021-11-13 17:33:36,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:36,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-11-13 17:33:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 17:33:36,229 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:33:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-11-13 17:33:36,271 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 17:33:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 17:33:36,435 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates
[2021-11-13 17:33:36,437 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:33:36,626 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 63 states and 82 transitions. Complement of second has 24 states.
[2021-11-13 17:33:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states
[2021-11-13 17:33:36,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 17:33:36,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions.
[2021-11-13 17:33:36,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 3 letters. Loop has 6 letters.
[2021-11-13 17:33:36,638 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-11-13 17:33:36,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 9 letters. Loop has 6 letters.
[2021-11-13 17:33:36,639 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-11-13 17:33:36,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 3 letters. Loop has 12 letters.
[2021-11-13 17:33:36,639 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-11-13 17:33:36,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions.
[2021-11-13 17:33:36,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:36,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 46 states and 60 transitions.
[2021-11-13 17:33:36,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30
[2021-11-13 17:33:36,668 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31
[2021-11-13 17:33:36,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 60 transitions.
[2021-11-13 17:33:36,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-11-13 17:33:36,671 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 60 transitions.
[2021-11-13 17:33:36,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 60 transitions.
[2021-11-13 17:33:36,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45.
[2021-11-13 17:33:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 29 states have internal predecessors, (32), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13)
[2021-11-13 17:33:36,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions.
[2021-11-13 17:33:36,715 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions.
[2021-11-13 17:33:36,715 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions.
[2021-11-13 17:33:36,716 INFO L425 BuchiCegarLoop]: ======== Iteration 2============
[2021-11-13 17:33:36,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 57 transitions.
[2021-11-13 17:33:36,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:36,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 17:33:36,721 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 17:33:36,722 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:36,722 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:36,723 INFO L791 eck$LassoCheckResult]: Stem: 174#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 175#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~ret5#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 185#L26 call main_#t~ret5#1 := g(main_~x~0#1);< 191#gENTRY ~x := #in~x; 184#L19 assume !(~x <= 0); 168#L20 call #t~ret2 := f(~x - 1);< 190#fENTRY ~x := #in~x; 200#L13 assume !(~x <= 0); 181#L14 call #t~ret0 := g(~x);< 188#gENTRY ~x := #in~x; 180#L19 assume ~x <= 0;#res := 0; 182#gFINAL assume true; 186#gEXIT >#27#return; 176#L14-1
[2021-11-13 17:33:36,723 INFO L793 eck$LassoCheckResult]: Loop: 176#L14-1 call #t~ret1 := g(1 + ~x);< 179#gENTRY ~x := #in~x; 204#L19 assume !(~x <= 0); 177#L20 call #t~ret2 := f(~x - 1);< 203#fENTRY ~x := #in~x; 201#L13 assume !(~x <= 0); 187#L14 call #t~ret0 := g(~x);< 179#gENTRY ~x := #in~x; 204#L19 assume ~x <= 0;#res := 0; 199#gFINAL assume true; 202#gEXIT >#27#return; 176#L14-1
[2021-11-13 17:33:36,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:36,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1510789928, now seen corresponding path program 1 times
[2021-11-13 17:33:36,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:36,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130203157]
[2021-11-13 17:33:36,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:36,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2021-11-13 17:33:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 17:33:36,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:33:36,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130203157]
[2021-11-13 17:33:36,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130203157] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:33:36,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:33:36,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-13 17:33:36,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476915408]
[2021-11-13 17:33:36,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:33:36,847 INFO L796 eck$LassoCheckResult]: stem already infeasible
[2021-11-13 17:33:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:36,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1553130012, now seen corresponding path program 1 times
[2021-11-13 17:33:36,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:36,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757756924]
[2021-11-13 17:33:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:36,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-11-13 17:33:36,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 17:33:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 17:33:36,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 17:33:36,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757756924]
[2021-11-13 17:33:36,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757756924] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 17:33:36,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 17:33:36,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-13 17:33:36,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552273061]
[2021-11-13 17:33:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 17:33:36,915 INFO L808 eck$LassoCheckResult]: loop already infeasible
[2021-11-13 17:33:36,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 17:33:36,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 17:33:36,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 17:33:36,925 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. cyclomatic complexity: 14 Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 17:33:36,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 17:33:36,991 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions.
[2021-11-13 17:33:36,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 17:33:36,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 60 transitions.
[2021-11-13 17:33:36,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:37,001 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 45 states and 56 transitions.
[2021-11-13 17:33:37,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31
[2021-11-13 17:33:37,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31
[2021-11-13 17:33:37,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 56 transitions.
[2021-11-13 17:33:37,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic.
[2021-11-13 17:33:37,002 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions.
[2021-11-13 17:33:37,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 56 transitions.
[2021-11-13 17:33:37,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2021-11-13 17:33:37,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14)
[2021-11-13 17:33:37,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions.
[2021-11-13 17:33:37,007 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions.
[2021-11-13 17:33:37,007 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 56 transitions.
[2021-11-13 17:33:37,007 INFO L425 BuchiCegarLoop]: ======== Iteration 3============
[2021-11-13 17:33:37,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 56 transitions.
[2021-11-13 17:33:37,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8
[2021-11-13 17:33:37,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 17:33:37,009 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 17:33:37,010 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:37,010 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 17:33:37,011 INFO L791 eck$LassoCheckResult]: Stem: 297#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 298#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~ret5#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 296#L26 call main_#t~ret5#1 := g(main_~x~0#1);< 305#gENTRY ~x := #in~x; 295#L19 assume !(~x <= 0); 284#L20 call #t~ret2 := f(~x - 1);< 304#fENTRY ~x := #in~x; 314#L13 assume !(~x <= 0); 294#L14 call #t~ret0 := g(~x);< 302#gENTRY ~x := #in~x; 293#L19 assume !(~x <= 0); 280#L20 call #t~ret2 := f(~x - 1);< 303#fENTRY ~x := #in~x; 306#L13 assume ~x <= 0;#res := 0; 279#fFINAL assume true; 281#fEXIT >#31#return; 286#L20-1 call #t~ret3 := f(~x - 2);< 312#fENTRY ~x := #in~x; 323#L13 assume ~x <= 0;#res := 0; 322#fFINAL assume true; 321#fEXIT >#33#return; 313#L20-2 #res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; 299#gFINAL assume true; 301#gEXIT >#27#return; 289#L14-1
[2021-11-13 17:33:37,011 INFO L793 eck$LassoCheckResult]: Loop: 289#L14-1 call #t~ret1 := g(1 + ~x);< 292#gENTRY ~x := #in~x; 320#L19 assume !(~x <= 0); 291#L20 call #t~ret2 := f(~x - 1);< 317#fENTRY ~x := #in~x; 315#L13 assume !(~x <= 0); 300#L14 call #t~ret0 := g(~x);< 292#gENTRY ~x := #in~x; 320#L19 assume !(~x <= 0); 291#L20 call #t~ret2 := f(~x - 1);< 317#fENTRY ~x := #in~x; 315#L13 assume ~x <= 0;#res := 0; 316#fFINAL assume true; 319#fEXIT >#31#return; 290#L20-1 call #t~ret3 := f(~x - 2);< 317#fENTRY ~x := #in~x; 315#L13 assume ~x <= 0;#res := 0; 316#fFINAL assume true; 319#fEXIT >#33#return; 313#L20-2 #res := #t~ret2 + #t~ret3;havoc #t~ret2;havoc #t~ret3; 299#gFINAL assume true; 301#gEXIT >#27#return; 289#L14-1
[2021-11-13 17:33:37,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:37,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1263731607, now seen corresponding path program 1 times
[2021-11-13 17:33:37,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:37,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769578457]
[2021-11-13 17:33:37,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:37,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,063 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0
[2021-11-13 17:33:37,094 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:37,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1714809691, now seen corresponding path program 1 times
[2021-11-13 17:33:37,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:37,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670921243]
[2021-11-13 17:33:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:37,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,107 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,119 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:37,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 17:33:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash 790919793, now seen corresponding path program 1 times
[2021-11-13 17:33:37,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 17:33:37,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223212332]
[2021-11-13 17:33:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 17:33:37,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 17:33:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,136 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 17:33:37,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 17:33:37,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 17:33:37,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 05:33:37 BoogieIcfgContainer
[2021-11-13 17:33:37,953 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-11-13 17:33:37,954 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 17:33:37,954 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 17:33:37,954 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 17:33:37,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:33:34" (3/4) ...
[2021-11-13 17:33:37,957 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample
[2021-11-13 17:33:37,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 17:33:37,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 17:33:37,992 INFO L158 Benchmark]: Toolchain (without parser) took 4159.29ms. Allocated memory is still 104.9MB. Free memory was 68.1MB in the beginning and 36.6MB in the end (delta: 31.4MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,992 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:33:37,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.27ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 82.8MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.46ms. Allocated memory is still 104.9MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 17:33:37,993 INFO L158 Benchmark]: Boogie Preprocessor took 18.08ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 817.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,994 INFO L158 Benchmark]: RCFGBuilder took 279.56ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 72.7MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,994 INFO L158 Benchmark]: BuchiAutomizer took 3547.07ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 38.7MB in the end (delta: 33.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,995 INFO L158 Benchmark]: Witness Printer took 37.45ms. Allocated memory is still 104.9MB. Free memory was 38.7MB in the beginning and 36.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 17:33:37,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26ms. Allocated memory is still 104.9MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 238.27ms. Allocated memory is still 104.9MB. Free memory was 67.9MB in the beginning and 82.8MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 31.46ms. Allocated memory is still 104.9MB. Free memory was 82.8MB in the beginning and 81.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 18.08ms. Allocated memory is still 104.9MB. Free memory was 81.6MB in the beginning and 80.8MB in the end (delta: 817.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 279.56ms. Allocated memory is still 104.9MB. Free memory was 80.5MB in the beginning and 72.7MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* BuchiAutomizer took 3547.07ms. Allocated memory is still 104.9MB. Free memory was 72.4MB in the beginning and 38.7MB in the end (delta: 33.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB.
* Witness Printer took 37.45ms. Allocated memory is still 104.9MB. Free memory was 38.7MB in the beginning and 36.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(x) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 45 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:3. 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 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 45 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 100.37ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 80.85ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 28 mSDtfsCounter, 81 mSolverCounterSat, 8.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s
- TerminationAnalysisResult: Nontermination possible
Buchi Automizer proved that your program is nonterminating for some inputs
- FixpointNonTerminationResult [Line: 14]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite execution
State at position 0 is
{}
State at position 1 is
{org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fa64973=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5aa5eb9=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4581c14d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c1753fc=0, \result=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@476a180c=0, \old(x)=1, x=1, x=0, \result=0, \old(x)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@737eb125=0}
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 14]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L25] int x = __VERIFIER_nondet_int();
[L26] CALL g(x)
[L19] COND FALSE !(x <= 0)
[L20] CALL, EXPR f(x - 1)
[L13] COND FALSE !(x <= 0)
[L14] CALL g(x)
[L19] COND FALSE !(x <= 0)
[L20] CALL, EXPR f(x - 1)
[L13] COND TRUE x <= 0
[L13] return 0;
[L20] RET, EXPR f(x - 1)
[L20] CALL, EXPR f(x - 2)
[L13] COND TRUE x <= 0
[L13] return 0;
[L20] RET, EXPR f(x - 2)
[L20] return f(x - 1) + f(x - 2);
[L14] RET g(x)
Loop:
[L14] CALL g(x + 1)
[L19] COND FALSE !(x <= 0)
[L20] CALL, EXPR f(x - 1)
[L13] COND FALSE !(x <= 0)
[L14] CALL g(x)
[L19] COND FALSE !(x <= 0)
[L20] CALL, EXPR f(x - 1)
[L13] COND TRUE x <= 0
[L13] return 0;
[L20] RET, EXPR f(x - 1)
[L20] CALL, EXPR f(x - 2)
[L13] COND TRUE x <= 0
[L13] return 0;
[L20] RET, EXPR f(x - 2)
[L20] return f(x - 1) + f(x - 2);
[L14] RET g(x)
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2021-11-13 17:33:38,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52e1b7dd-9c5f-4a46-8329-f1e60576cf00/bin/uautomizer-YU5uOKAj3y/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)