./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-termination_true-valid-memsafety.c --full-output --architecture 64bit


--------------------------------------------------------------------------------


Checking for termination
Using default analysis
Version 635dfa2a
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer --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 ce492abcc29ddbc9795671b095b6bfaf5bfc547b
........................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.1.23-635dfa2
[2018-12-02 20:21:17,499 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-12-02 20:21:17,500 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-12-02 20:21:17,506 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-12-02 20:21:17,506 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-12-02 20:21:17,507 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-12-02 20:21:17,508 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-12-02 20:21:17,509 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-12-02 20:21:17,510 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-12-02 20:21:17,511 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-12-02 20:21:17,511 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-12-02 20:21:17,511 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-02 20:21:17,512 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-02 20:21:17,513 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-02 20:21:17,513 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-02 20:21:17,513 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-02 20:21:17,514 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-02 20:21:17,515 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-02 20:21:17,515 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-02 20:21:17,516 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-02 20:21:17,517 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-02 20:21:17,517 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-02 20:21:17,519 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-02 20:21:17,519 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-02 20:21:17,519 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-02 20:21:17,520 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-02 20:21:17,520 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-02 20:21:17,521 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-02 20:21:17,521 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-02 20:21:17,521 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-02 20:21:17,521 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-02 20:21:17,522 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-02 20:21:17,522 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-02 20:21:17,522 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-02 20:21:17,522 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-02 20:21:17,523 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-12-02 20:21:17,523 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf
[2018-12-02 20:21:17,530 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-12-02 20:21:17,530 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-12-02 20:21:17,531 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-12-02 20:21:17,531 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-12-02 20:21:17,531 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-12-02 20:21:17,531 INFO  L131        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2018-12-02 20:21:17,531 INFO  L133        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2018-12-02 20:21:17,532 INFO  L133        SettingsManager]:  * Use old map elimination=false
[2018-12-02 20:21:17,532 INFO  L133        SettingsManager]:  * Use external solver (rank synthesis)=false
[2018-12-02 20:21:17,532 INFO  L133        SettingsManager]:  * Use only trivial implications for array writes=true
[2018-12-02 20:21:17,532 INFO  L133        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2018-12-02 20:21:17,532 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-12-02 20:21:17,532 INFO  L133        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-12-02 20:21:17,533 INFO  L133        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2018-12-02 20:21:17,534 INFO  L133        SettingsManager]:  * Use constant arrays=true
[2018-12-02 20:21:17,534 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2018-12-02 20:21:17,534 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-12-02 20:21:17,534 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-12-02 20:21:17,534 INFO  L133        SettingsManager]:  * To the following directory=/home/matthias/ultimate/dump
[2018-12-02 20:21:17,534 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-12-02 20:21:17,534 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-12-02 20:21:17,535 INFO  L133        SettingsManager]:  * Dump automata to the following directory=/home/matthias/ultimate/dump/auto
[2018-12-02 20:21:17,535 INFO  L131        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2018-12-02 20:21:17,535 INFO  L133        SettingsManager]:  * TransformationType=MODULO_NEIGHBOR
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-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer
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 -> ce492abcc29ddbc9795671b095b6bfaf5bfc547b
[2018-12-02 20:21:17,558 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-12-02 20:21:17,567 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-12-02 20:21:17,569 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-12-02 20:21:17,571 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-12-02 20:21:17,571 INFO  L276        PluginConnector]: CDTParser initialized
[2018-12-02 20:21:17,571 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-termination_true-valid-memsafety.c
[2018-12-02 20:21:17,615 INFO  L221              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/data/01b9d80a7/3da39a00cebb4cadbab7a381cde688fb/FLAG35db0dbb1
[2018-12-02 20:21:17,954 INFO  L307              CDTParser]: Found 1 translation units.
[2018-12-02 20:21:17,954 INFO  L161              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-termination_true-valid-memsafety.c
[2018-12-02 20:21:17,958 INFO  L355              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/data/01b9d80a7/3da39a00cebb4cadbab7a381cde688fb/FLAG35db0dbb1
[2018-12-02 20:21:18,350 INFO  L363              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/data/01b9d80a7/3da39a00cebb4cadbab7a381cde688fb
[2018-12-02 20:21:18,352 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-12-02 20:21:18,353 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2018-12-02 20:21:18,354 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-12-02 20:21:18,354 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-12-02 20:21:18,356 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-12-02 20:21:18,357 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,358 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92370fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18, skipping insertion in model container
[2018-12-02 20:21:18,359 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,363 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-12-02 20:21:18,372 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2018-12-02 20:21:18,458 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-02 20:21:18,460 INFO  L191         MainTranslator]: Completed pre-run
[2018-12-02 20:21:18,469 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-02 20:21:18,476 INFO  L195         MainTranslator]: Completed translation
[2018-12-02 20:21:18,477 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18 WrapperNode
[2018-12-02 20:21:18,477 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-12-02 20:21:18,477 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-12-02 20:21:18,477 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-12-02 20:21:18,477 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-12-02 20:21:18,482 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,485 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,495 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-12-02 20:21:18,496 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-12-02 20:21:18,496 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-12-02 20:21:18,496 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-12-02 20:21:18,501 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,501 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,501 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,501 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,503 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,504 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,504 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
[2018-12-02 20:21:18,505 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-12-02 20:21:18,505 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-12-02 20:21:18,505 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-12-02 20:21:18,505 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-12-02 20:21:18,506 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2018-12-02 20:21:18,569 INFO  L130     BoogieDeclarations]: Found specification of procedure rec1
[2018-12-02 20:21:18,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure rec1
[2018-12-02 20:21:18,569 INFO  L130     BoogieDeclarations]: Found specification of procedure rec2
[2018-12-02 20:21:18,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure rec2
[2018-12-02 20:21:18,569 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-12-02 20:21:18,569 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-12-02 20:21:18,658 INFO  L275             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-12-02 20:21:18,658 INFO  L280             CfgBuilder]: Removed 4 assue(true) statements.
[2018-12-02 20:21:18,658 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:18 BoogieIcfgContainer
[2018-12-02 20:21:18,658 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-12-02 20:21:18,659 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2018-12-02 20:21:18,659 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2018-12-02 20:21:18,661 INFO  L276        PluginConnector]: BuchiAutomizer initialized
[2018-12-02 20:21:18,662 INFO  L102         BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-12-02 20:21:18,662 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:21:18" (1/3) ...
[2018-12-02 20:21:18,662 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63c8561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:21:18, skipping insertion in model container
[2018-12-02 20:21:18,663 INFO  L102         BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-12-02 20:21:18,663 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:21:18" (2/3) ...
[2018-12-02 20:21:18,663 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63c8561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:21:18, skipping insertion in model container
[2018-12-02 20:21:18,663 INFO  L102         BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2018-12-02 20:21:18,663 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:18" (3/3) ...
[2018-12-02 20:21:18,664 INFO  L375   chiAutomizerObserver]: Analyzing ICFG NestedRecursion_1a_false-termination_true-valid-memsafety.c
[2018-12-02 20:21:18,698 INFO  L133   ementStrategyFactory]: Using default assertion order modulation
[2018-12-02 20:21:18,698 INFO  L374         BuchiCegarLoop]: Interprodecural is true
[2018-12-02 20:21:18,698 INFO  L375         BuchiCegarLoop]: Hoare is false
[2018-12-02 20:21:18,698 INFO  L376         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2018-12-02 20:21:18,698 INFO  L377         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2018-12-02 20:21:18,698 INFO  L378         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-12-02 20:21:18,699 INFO  L379         BuchiCegarLoop]: Difference is false
[2018-12-02 20:21:18,699 INFO  L380         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-12-02 20:21:18,699 INFO  L383         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2018-12-02 20:21:18,708 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states.
[2018-12-02 20:21:18,723 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2018-12-02 20:21:18,723 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-12-02 20:21:18,723 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2018-12-02 20:21:18,728 INFO  L866         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2018-12-02 20:21:18,729 INFO  L867         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-02 20:21:18,729 INFO  L442         BuchiCegarLoop]: ======== Iteration 1============
[2018-12-02 20:21:18,729 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states.
[2018-12-02 20:21:18,730 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2018-12-02 20:21:18,730 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-12-02 20:21:18,730 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2018-12-02 20:21:18,731 INFO  L866         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2018-12-02 20:21:18,731 INFO  L867         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-02 20:21:18,736 INFO  L794   eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 3#L26true assume !!(main_~x~0 <= 2147483646); 6#L27true call main_#t~ret6 := rec2(main_~x~0);< 5#rec2ENTRYtrue 
[2018-12-02 20:21:18,736 INFO  L796   eck$LassoCheckResult]: Loop: 5#rec2ENTRYtrue ~j := #in~j; 22#L18true assume !(~j <= 0); 20#L20true call #t~ret3 := rec1(1 + ~j);< 7#rec1ENTRYtrue ~i := #in~i; 12#L12true assume ~i <= 0;#res := 0; 8#rec1FINALtrue assume true; 15#rec1EXITtrue >#38#return; 24#L20-1true call #t~ret4 := rec2(#t~ret3);< 5#rec2ENTRYtrue 
[2018-12-02 20:21:18,739 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 20:21:18,740 INFO  L82        PathProgramCache]: Analyzing trace with hash 49827, now seen corresponding path program 1 times
[2018-12-02 20:21:18,741 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 20:21:18,741 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 20:21:18,770 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,770 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 20:21:18,770 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,789 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,800 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 20:21:18,800 INFO  L82        PathProgramCache]: Analyzing trace with hash -959692825, now seen corresponding path program 1 times
[2018-12-02 20:21:18,800 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 20:21:18,800 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 20:21:18,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,801 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 20:21:18,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-02 20:21:18,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-02 20:21:18,846 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-12-02 20:21:18,846 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2018-12-02 20:21:18,849 INFO  L811   eck$LassoCheckResult]: loop already infeasible
[2018-12-02 20:21:18,857 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-12-02 20:21:18,858 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2018-12-02 20:21:18,859 INFO  L87              Difference]: Start difference. First operand 22 states. Second operand 5 states.
[2018-12-02 20:21:18,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-12-02 20:21:18,906 INFO  L93              Difference]: Finished difference Result 26 states and 35 transitions.
[2018-12-02 20:21:18,907 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2018-12-02 20:21:18,908 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 35 transitions.
[2018-12-02 20:21:18,910 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2018-12-02 20:21:18,915 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 17 states and 23 transitions.
[2018-12-02 20:21:18,915 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 17
[2018-12-02 20:21:18,916 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 17
[2018-12-02 20:21:18,916 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions.
[2018-12-02 20:21:18,917 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2018-12-02 20:21:18,917 INFO  L705         BuchiCegarLoop]: Abstraction has 17 states and 23 transitions.
[2018-12-02 20:21:18,927 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions.
[2018-12-02 20:21:18,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2018-12-02 20:21:18,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 17 states.
[2018-12-02 20:21:18,935 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions.
[2018-12-02 20:21:18,935 INFO  L728         BuchiCegarLoop]: Abstraction has 17 states and 23 transitions.
[2018-12-02 20:21:18,935 INFO  L608         BuchiCegarLoop]: Abstraction has 17 states and 23 transitions.
[2018-12-02 20:21:18,935 INFO  L442         BuchiCegarLoop]: ======== Iteration 2============
[2018-12-02 20:21:18,936 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions.
[2018-12-02 20:21:18,936 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 9
[2018-12-02 20:21:18,936 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2018-12-02 20:21:18,936 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2018-12-02 20:21:18,937 INFO  L866         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2018-12-02 20:21:18,937 INFO  L867         BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2018-12-02 20:21:18,937 INFO  L794   eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_#t~ret6, main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 61#L26 assume !!(main_~x~0 <= 2147483646); 62#L27 call main_#t~ret6 := rec2(main_~x~0);< 63#rec2ENTRY 
[2018-12-02 20:21:18,937 INFO  L796   eck$LassoCheckResult]: Loop: 63#rec2ENTRY ~j := #in~j; 65#L18 assume !(~j <= 0); 70#L20 call #t~ret3 := rec1(1 + ~j);< 66#rec1ENTRY ~i := #in~i; 71#L12 assume !(~i <= 0); 67#L14 call #t~ret0 := rec1(~i - 2);< 66#rec1ENTRY ~i := #in~i; 71#L12 assume ~i <= 0;#res := 0; 72#rec1FINAL assume true; 73#rec1EXIT >#32#return; 68#L14-1 call #t~ret1 := rec1(#t~ret0 - 1);< 66#rec1ENTRY ~i := #in~i; 71#L12 assume ~i <= 0;#res := 0; 72#rec1FINAL assume true; 73#rec1EXIT >#34#return; 69#L14-2 call #t~ret2 := rec1(#t~ret1);< 66#rec1ENTRY ~i := #in~i; 71#L12 assume ~i <= 0;#res := 0; 72#rec1FINAL assume true; 73#rec1EXIT >#36#return; 74#L14-3 #res := 1 + #t~ret2;havoc #t~ret0;havoc #t~ret2;havoc #t~ret1; 75#rec1FINAL assume true; 77#rec1EXIT >#38#return; 64#L20-1 call #t~ret4 := rec2(#t~ret3);< 63#rec2ENTRY 
[2018-12-02 20:21:18,937 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 20:21:18,937 INFO  L82        PathProgramCache]: Analyzing trace with hash 49827, now seen corresponding path program 2 times
[2018-12-02 20:21:18,938 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 20:21:18,938 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 20:21:18,938 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,938 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 20:21:18,938 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,941 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 20:21:18,941 INFO  L82        PathProgramCache]: Analyzing trace with hash 1440672699, now seen corresponding path program 1 times
[2018-12-02 20:21:18,941 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 20:21:18,942 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 20:21:18,942 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,942 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,942 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,964 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-02 20:21:18,964 INFO  L82        PathProgramCache]: Analyzing trace with hash -1765119907, now seen corresponding path program 1 times
[2018-12-02 20:21:18,964 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-12-02 20:21:18,964 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-12-02 20:21:18,965 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,965 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-12-02 20:21:18,965 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-12-02 20:21:18,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:18,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-02 20:21:19,204 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:21:19 BoogieIcfgContainer
[2018-12-02 20:21:19,204 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2018-12-02 20:21:19,205 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2018-12-02 20:21:19,205 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2018-12-02 20:21:19,205 INFO  L276        PluginConnector]: Witness Printer initialized
[2018-12-02 20:21:19,205 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:21:18" (3/4) ...
[2018-12-02 20:21:19,207 INFO  L141         WitnessPrinter]: Generating witness for non-termination counterexample
[2018-12-02 20:21:19,233 INFO  L145         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_84987b33-7acb-4871-b6fb-5a6e0e88d68f/bin-2019/uautomizer/witness.graphml
[2018-12-02 20:21:19,233 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-12-02 20:21:19,234 INFO  L168              Benchmark]: Toolchain (without parser) took 881.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 953.3 MB in the beginning and 992.3 MB in the end (delta: -39.0 MB). Peak memory consumption was 61.1 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,235 INFO  L168              Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,235 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 123.26 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,235 INFO  L168              Benchmark]: Boogie Procedure Inliner took 18.18 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,235 INFO  L168              Benchmark]: Boogie Preprocessor took 9.33 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,236 INFO  L168              Benchmark]: RCFGBuilder took 153.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,236 INFO  L168              Benchmark]: BuchiAutomizer took 546.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,237 INFO  L168              Benchmark]: Witness Printer took 28.31 ms. Allocated memory is still 1.1 GB. Free memory was 995.0 MB in the beginning and 992.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
[2018-12-02 20:21:19,239 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 123.26 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
 * Boogie Procedure Inliner took 18.18 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 9.33 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
 * RCFGBuilder took 153.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB.
 * BuchiAutomizer took 546.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.0 MB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 11.5 GB.
 * Witness Printer took 28.31 ms. Allocated memory is still 1.1 GB. Free memory was 995.0 MB in the beginning and 992.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 17 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 0.5s and 2 iterations.  TraceHistogramMax:4. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 1.	Nontrivial modules had stage [0, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: 25 SDtfs, 7 SDslu, 53 SDs, 0 SdLazy, 31 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time	LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 0	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.0s	
  - TerminationAnalysisResult: Nontermination possible
    Buchi Automizer proved that your program is nonterminating for some inputs
  - FixpointNonTerminationResult [Line: 17]: 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
{NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@318f727d=0, \old(j)=1, \result=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77a58c6b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37a97c9d=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7af15bbf=0, j=0}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 17]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L24]              int x = __VERIFIER_nondet_int();
[L26]  COND FALSE  !(!(x<=2147483646))
[L27]  CALL        rec2(x)
Loop:
[L18]  COND FALSE  !(j <= 0)
[L20]  CALL, EXPR  rec1(j+1)
[L12]  COND FALSE  !(i <= 0)
[L14]  CALL, EXPR  rec1(i-2)
[L12]  COND TRUE   i <= 0
[L13]              return 0;
[L14]  RET, EXPR   rec1(i-2)
[L14]  CALL, EXPR  rec1(rec1(i-2) - 1)
[L12]  COND TRUE   i <= 0
[L13]              return 0;
[L14]  RET, EXPR   rec1(rec1(i-2) - 1)
[L14]  CALL, EXPR  rec1(rec1(rec1(i-2) - 1))
[L12]  COND TRUE   i <= 0
[L13]              return 0;
[L14]  RET, EXPR   rec1(rec1(rec1(i-2) - 1))
[L14]              return rec1(rec1(rec1(i-2) - 1)) + 1;
[L20]  RET, EXPR   rec1(j+1)
[L20]  CALL        rec2(rec1(j+1))
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...