./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.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_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/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_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/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_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/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 b39ec4b52f8da315ff57d8e97152c727a55203720ed4bc216d0daa6b94e35d48
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:04:55,890 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:04:55,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:04:55,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:04:55,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:04:55,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:04:55,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:04:55,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:04:55,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:04:55,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:04:55,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:04:55,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:04:55,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:04:55,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:04:55,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:04:55,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:04:55,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:04:55,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:04:55,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:04:55,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:04:55,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:04:55,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:04:55,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:04:55,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:04:55,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:04:55,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:04:55,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:04:55,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:04:55,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:04:55,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:04:55,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:04:55,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:04:55,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:04:55,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:04:56,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:04:56,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:04:56,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:04:56,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:04:56,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:04:56,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:04:56,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:04:56,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-11-13 18:04:56,050 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:04:56,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:04:56,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:04:56,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:04:56,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:04:56,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:04:56,053 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:04:56,053 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-11-13 18:04:56,053 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-11-13 18:04:56,053 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-11-13 18:04:56,054 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-11-13 18:04:56,054 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-11-13 18:04:56,054 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-11-13 18:04:56,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:04:56,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-11-13 18:04:56,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:04:56,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:04:56,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-11-13 18:04:56,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-11-13 18:04:56,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-11-13 18:04:56,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:04:56,056 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-11-13 18:04:56,056 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:04:56,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-11-13 18:04:56,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:04:56,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:04:56,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:04:56,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:04:56,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:04:56,059 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-11-13 18:04:56,059 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_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b39ec4b52f8da315ff57d8e97152c727a55203720ed4bc216d0daa6b94e35d48
[2021-11-13 18:04:56,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:04:56,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:04:56,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:04:56,413 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:04:56,414 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:04:56,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c
[2021-11-13 18:04:56,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/data/28e6fc134/58dc56c6c10c4222a459484420fc0e93/FLAG54f93831b
[2021-11-13 18:04:56,991 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:04:56,991 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c
[2021-11-13 18:04:56,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/data/28e6fc134/58dc56c6c10c4222a459484420fc0e93/FLAG54f93831b
[2021-11-13 18:04:57,387 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/data/28e6fc134/58dc56c6c10c4222a459484420fc0e93
[2021-11-13 18:04:57,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:04:57,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:04:57,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:04:57,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:04:57,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:04:57,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5211ba6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57, skipping insertion in model container
[2021-11-13 18:04:57,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:04:57,424 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:04:57,604 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:04:57,608 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:04:57,627 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:04:57,639 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:04:57,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57 WrapperNode
[2021-11-13 18:04:57,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:04:57,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:04:57,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:04:57,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:04:57,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:04:57,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:04:57,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:04:57,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:04:57,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:04:57,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:04:57,695 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:04:57,695 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:04:57,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (1/1) ...
[2021-11-13 18:04:57,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:57,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:57,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:57,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:04:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:04:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:04:58,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:04:58,028 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 18:04:58,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:58 BoogieIcfgContainer
[2021-11-13 18:04:58,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:04:58,033 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-11-13 18:04:58,034 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-11-13 18:04:58,038 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-11-13 18:04:58,039 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 18:04:58,039 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:04:57" (1/3) ...
[2021-11-13 18:04:58,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53561557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:04:58, skipping insertion in model container
[2021-11-13 18:04:58,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 18:04:58,042 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:04:57" (2/3) ...
[2021-11-13 18:04:58,043 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53561557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:04:58, skipping insertion in model container
[2021-11-13 18:04:58,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-11-13 18:04:58,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:04:58" (3/3) ...
[2021-11-13 18:04:58,045 INFO L388 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c
[2021-11-13 18:04:58,111 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-11-13 18:04:58,112 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-11-13 18:04:58,112 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-11-13 18:04:58,112 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-11-13 18:04:58,112 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-11-13 18:04:58,112 INFO L364 BuchiCegarLoop]: Difference is false
[2021-11-13 18:04:58,112 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-11-13 18:04:58,112 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-11-13 18:04:58,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:58,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-11-13 18:04:58,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 18:04:58,170 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 18:04:58,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2021-11-13 18:04:58,177 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2021-11-13 18:04:58,178 INFO L425 BuchiCegarLoop]: ======== Iteration 1============
[2021-11-13 18:04:58,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-13 18:04:58,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2021-11-13 18:04:58,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-11-13 18:04:58,182 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-11-13 18:04:58,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2021-11-13 18:04:58,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1]
[2021-11-13 18:04:58,194 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~a~0#1, main_~b~0#1, main_~q~0#1, main_~olda~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~q~0#1;havoc main_~olda~0#1;main_~q~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L23true assume !!(-524287 <= main_~q~0#1 && main_~q~0#1 <= 524287); 10#L24true assume !!(-524287 <= main_~a~0#1 && main_~a~0#1 <= 524287); 6#L25true assume !!(-524287 <= main_~b~0#1 && main_~b~0#1 <= 524287); 5#L26-2true
[2021-11-13 18:04:58,194 INFO L793 eck$LassoCheckResult]: Loop: 5#L26-2true assume !!(main_~q~0#1 > 0);main_~q~0#1 := main_~q~0#1 + main_~a~0#1 - 1;main_~olda~0#1 := main_~a~0#1;main_~a~0#1 := 3 * main_~olda~0#1 - 4 * main_~b~0#1;main_~b~0#1 := 4 * main_~olda~0#1 + 3 * main_~b~0#1; 5#L26-2true
[2021-11-13 18:04:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:58,210 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times
[2021-11-13 18:04:58,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:04:58,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087398659]
[2021-11-13 18:04:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:58,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:04:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,300 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:04:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:04:58,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:58,324 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times
[2021-11-13 18:04:58,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:04:58,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214785770]
[2021-11-13 18:04:58,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:58,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:04:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,338 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:04:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,352 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:04:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:04:58,355 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times
[2021-11-13 18:04:58,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:04:58,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654582830]
[2021-11-13 18:04:58,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:04:58,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:04:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,373 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:04:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:04:58,385 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:04:58,489 INFO L210 LassoAnalysis]: Preferences:
[2021-11-13 18:04:58,490 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-11-13 18:04:58,490 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-11-13 18:04:58,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-11-13 18:04:58,491 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-11-13 18:04:58,491 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:58,491 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-11-13 18:04:58,491 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-11-13 18:04:58,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop
[2021-11-13 18:04:58,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-11-13 18:04:58,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing...
[2021-11-13 18:04:58,512 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 18:04:58,520 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 18:04:58,523 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 18:04:58,642 INFO L294 LassoAnalysis]: Preprocessing complete.
[2021-11-13 18:04:58,643 INFO L404 LassoAnalysis]: Checking for nontermination...
[2021-11-13 18:04:58,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:58,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:58,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process
[2021-11-13 18:04:58,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 18:04:58,689 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 18:04:58,742 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 18:04:58,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 18:04:58,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:58,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:58,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:58,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:58,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process
[2021-11-13 18:04:58,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 18:04:58,802 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 18:04:58,819 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-11-13 18:04:58,819 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
[2021-11-13 18:04:58,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0
[2021-11-13 18:04:58,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:58,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:58,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:58,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-11-13 18:04:58,856 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 18:04:58,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process
[2021-11-13 18:04:58,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:04:58,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-11-13 18:04:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:04:58,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-11-13 18:04:58,947 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-11-13 18:04:58,948 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-11-13 18:04:58,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a48c77b9-efeb-4a49-a7a1-ffec2a7333fa/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process