./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c --full-output --architecture 64bit


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


Checking for overflows
Using default analysis
Version a4ecdabc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0891d25befae8c09e1d39f695095d48836d44a56
...............................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(OVERFLOW)
--- Real Ultimate output ---
This is Ultimate 0.2.0-a4ecdab
[2020-11-28 04:40:53,186 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-28 04:40:53,188 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-28 04:40:53,252 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-28 04:40:53,252 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-28 04:40:53,262 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-28 04:40:53,266 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-28 04:40:53,273 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-28 04:40:53,275 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-28 04:40:53,281 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-28 04:40:53,282 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-11-28 04:40:53,284 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-28 04:40:53,284 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-28 04:40:53,288 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-28 04:40:53,289 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-28 04:40:53,291 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-28 04:40:53,292 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-28 04:40:53,296 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-28 04:40:53,299 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-28 04:40:53,306 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-28 04:40:53,308 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-28 04:40:53,310 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-28 04:40:53,312 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-28 04:40:53,313 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-28 04:40:53,316 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-28 04:40:53,317 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-28 04:40:53,317 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-28 04:40:53,318 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-28 04:40:53,318 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-28 04:40:53,319 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-28 04:40:53,320 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-28 04:40:53,321 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-28 04:40:53,321 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-28 04:40:53,322 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-28 04:40:53,323 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-28 04:40:53,324 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-28 04:40:53,324 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-28 04:40:53,324 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-28 04:40:53,325 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-28 04:40:53,326 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-28 04:40:53,326 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-28 04:40:53,327 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf
[2020-11-28 04:40:53,351 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-28 04:40:53,351 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-28 04:40:53,352 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2020-11-28 04:40:53,352 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ALWAYS
[2020-11-28 04:40:53,353 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-28 04:40:53,353 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-28 04:40:53,353 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-28 04:40:53,353 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-11-28 04:40:53,354 INFO  L138        SettingsManager]:  * Check absence of signed integer overflows=true
[2020-11-28 04:40:53,355 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-28 04:40:53,355 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-28 04:40:53,355 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-11-28 04:40:53,355 INFO  L136        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2020-11-28 04:40:53,356 INFO  L138        SettingsManager]:  * Timeout in seconds=1000000
[2020-11-28 04:40:53,356 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-28 04:40:53,356 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-11-28 04:40:53,356 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2020-11-28 04:40:53,356 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-28 04:40:53,357 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-11-28 04:40:53,357 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-28 04:40:53,357 INFO  L138        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2020-11-28 04:40:53,357 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-28 04:40:53,357 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-28 04:40:53,358 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/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-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak
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(G ! overflow) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak
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 -> 0891d25befae8c09e1d39f695095d48836d44a56
[2020-11-28 04:40:53,598 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-28 04:40:53,624 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-28 04:40:53,627 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-28 04:40:53,628 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-28 04:40:53,629 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-28 04:40:53,631 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c
[2020-11-28 04:40:53,692 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/data/e1bc241e2/dcfdf622a10b4026a64782507524b57e/FLAG0748077bd
[2020-11-28 04:40:54,126 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-28 04:40:54,130 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.02.c
[2020-11-28 04:40:54,135 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/data/e1bc241e2/dcfdf622a10b4026a64782507524b57e/FLAG0748077bd
[2020-11-28 04:40:54,528 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/data/e1bc241e2/dcfdf622a10b4026a64782507524b57e
[2020-11-28 04:40:54,530 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-28 04:40:54,531 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-11-28 04:40:54,546 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-28 04:40:54,546 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-28 04:40:54,549 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-28 04:40:54,550 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,552 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f7955e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54, skipping insertion in model container
[2020-11-28 04:40:54,552 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,559 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-28 04:40:54,570 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-28 04:40:54,691 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-28 04:40:54,705 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-28 04:40:54,735 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-28 04:40:54,746 INFO  L208         MainTranslator]: Completed translation
[2020-11-28 04:40:54,746 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54 WrapperNode
[2020-11-28 04:40:54,747 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-28 04:40:54,748 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-28 04:40:54,748 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-28 04:40:54,748 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-28 04:40:54,754 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,757 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,770 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-28 04:40:54,771 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-28 04:40:54,771 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-28 04:40:54,771 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-28 04:40:54,778 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,778 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,779 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,779 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,780 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,783 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,784 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
[2020-11-28 04:40:54,785 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-28 04:40:54,786 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-28 04:40:54,786 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-28 04:40:54,786 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-28 04:40:54,787 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:40:54" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2020-11-28 04:40:54,854 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-28 04:40:54,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-28 04:40:55,063 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-28 04:40:55,063 INFO  L298             CfgBuilder]: Removed 5 assume(true) statements.
[2020-11-28 04:40:55,065 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:55 BoogieIcfgContainer
[2020-11-28 04:40:55,065 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-28 04:40:55,066 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2020-11-28 04:40:55,066 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2020-11-28 04:40:55,087 INFO  L275        PluginConnector]: CodeCheck initialized
[2020-11-28 04:40:55,087 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:55" (1/1) ...
[2020-11-28 04:40:55,095 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-28 04:40:55,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-28 04:40:55,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2020-11-28 04:40:55,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2020-11-28 04:40:55,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2020-11-28 04:40:55,159 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-28 04:40:55,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-28 04:40:55,241 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-28 04:40:55,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-28 04:40:55,252 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-28 04:40:55,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-28 04:40:55,277 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-28 04:40:55,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-28 04:40:55,285 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-28 04:40:55,291 WARN  L483      CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations.
[2020-11-28 04:40:55,305 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:40:55 ImpRootNode
[2020-11-28 04:40:55,306 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2020-11-28 04:40:55,306 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-11-28 04:40:55,307 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-11-28 04:40:55,307 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-11-28 04:40:55,307 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:40:55" (3/4) ...
[2020-11-28 04:40:55,309 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2020-11-28 04:40:55,342 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84a191fd-a332-4b04-ac6c-9225a2cf2870/bin/ukojak/witness.graphml
[2020-11-28 04:40:55,343 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-11-28 04:40:55,345 INFO  L168              Benchmark]: Toolchain (without parser) took 812.11 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 46.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,346 INFO  L168              Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,347 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 201.15 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 69.4 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,348 INFO  L168              Benchmark]: Boogie Procedure Inliner took 22.59 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,349 INFO  L168              Benchmark]: Boogie Preprocessor took 14.65 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 994.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,350 INFO  L168              Benchmark]: RCFGBuilder took 279.41 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 56.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,351 INFO  L168              Benchmark]: CodeCheck took 239.42 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 47.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,352 INFO  L168              Benchmark]: Witness Printer took 36.29 ms. Allocated memory is still 90.2 MB. Free memory was 47.8 MB in the beginning and 46.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-28 04:40:55,356 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck:
  - StatisticsResult: Ultimate CodeCheck benchmark data
    CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available
  - CounterExampleResult [Line: 28]: integer overflow possible
    integer overflow possible
We found a FailurePath: 
[L23]             int x, y, z;
[L24]             x = __VERIFIER_nondet_int()
[L25]             y = __VERIFIER_nondet_int()
[L26]             z = __VERIFIER_nondet_int()
[L27]  COND TRUE  x > 0
[L28]             x + y

 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory was 49.6 MB in the beginning and 49.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 201.15 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 69.4 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 22.59 ms. Allocated memory is still 90.2 MB. Free memory was 69.4 MB in the beginning and 68.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 14.65 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 67.3 MB in the end (delta: 994.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * RCFGBuilder took 279.41 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 56.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * CodeCheck took 239.42 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 47.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Witness Printer took 36.29 ms. Allocated memory is still 90.2 MB. Free memory was 47.8 MB in the beginning and 46.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...