./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20_false-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 635dfa2a
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) )

 --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d1286ba4e4f9d6c67aa5e4ab5d636bfd3afce4b1
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.1.23-635dfa2
[2018-12-08 17:15:10,847 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-12-08 17:15:10,849 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-12-08 17:15:10,858 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-12-08 17:15:10,858 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-12-08 17:15:10,859 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-12-08 17:15:10,859 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-12-08 17:15:10,861 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-12-08 17:15:10,862 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-12-08 17:15:10,862 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-12-08 17:15:10,863 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-12-08 17:15:10,863 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-08 17:15:10,864 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-08 17:15:10,865 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-08 17:15:10,865 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-08 17:15:10,866 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-08 17:15:10,867 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-08 17:15:10,868 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-08 17:15:10,869 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-08 17:15:10,870 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-08 17:15:10,871 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-08 17:15:10,872 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-08 17:15:10,873 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-08 17:15:10,873 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-08 17:15:10,874 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-08 17:15:10,874 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-08 17:15:10,875 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-08 17:15:10,876 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-08 17:15:10,876 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-08 17:15:10,877 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-08 17:15:10,877 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-08 17:15:10,878 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-08 17:15:10,878 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-08 17:15:10,878 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-08 17:15:10,879 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-08 17:15:10,879 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-12-08 17:15:10,879 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf
[2018-12-08 17:15:10,887 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-12-08 17:15:10,887 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-12-08 17:15:10,888 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-12-08 17:15:10,888 INFO  L133        SettingsManager]:  * ... to procedures called more than once=ALWAYS
[2018-12-08 17:15:10,888 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-12-08 17:15:10,888 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-12-08 17:15:10,888 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-12-08 17:15:10,888 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Use constant arrays=true
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-12-08 17:15:10,889 INFO  L131        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2018-12-08 17:15:10,889 INFO  L133        SettingsManager]:  * Timeout in seconds=1000000
[2018-12-08 17:15:10,890 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2018-12-08 17:15:10,890 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-12-08 17:15:10,890 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
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_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/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 ! call(__VERIFIER_error())) )


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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1286ba4e4f9d6c67aa5e4ab5d636bfd3afce4b1
[2018-12-08 17:15:10,908 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-12-08 17:15:10,918 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-12-08 17:15:10,921 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-12-08 17:15:10,922 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-12-08 17:15:10,922 INFO  L276        PluginConnector]: CDTParser initialized
[2018-12-08 17:15:10,923 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_o20_false-unreach-call_true-termination_true-no-overflow.c
[2018-12-08 17:15:10,962 INFO  L221              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/data/cfdbea0b8/96653c9892c540dc9444c9fd0ecd3c2f/FLAGb4d7c1f19
[2018-12-08 17:15:11,365 INFO  L307              CDTParser]: Found 1 translation units.
[2018-12-08 17:15:11,366 INFO  L161              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/sv-benchmarks/c/recursive-simple/id_o20_false-unreach-call_true-termination_true-no-overflow.c
[2018-12-08 17:15:11,369 INFO  L355              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/data/cfdbea0b8/96653c9892c540dc9444c9fd0ecd3c2f/FLAGb4d7c1f19
[2018-12-08 17:15:11,377 INFO  L363              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/data/cfdbea0b8/96653c9892c540dc9444c9fd0ecd3c2f
[2018-12-08 17:15:11,380 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-12-08 17:15:11,381 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2018-12-08 17:15:11,382 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-12-08 17:15:11,382 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-12-08 17:15:11,385 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-12-08 17:15:11,385 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,387 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf44b87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11, skipping insertion in model container
[2018-12-08 17:15:11,388 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,394 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-12-08 17:15:11,403 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2018-12-08 17:15:11,484 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-08 17:15:11,486 INFO  L191         MainTranslator]: Completed pre-run
[2018-12-08 17:15:11,494 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-08 17:15:11,501 INFO  L195         MainTranslator]: Completed translation
[2018-12-08 17:15:11,501 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11 WrapperNode
[2018-12-08 17:15:11,501 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-12-08 17:15:11,502 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-12-08 17:15:11,502 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-12-08 17:15:11,502 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-12-08 17:15:11,508 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,511 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,520 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-12-08 17:15:11,520 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-12-08 17:15:11,521 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-12-08 17:15:11,521 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-12-08 17:15:11,526 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,526 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,526 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,526 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,527 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,528 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,529 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,529 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-12-08 17:15:11,529 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-12-08 17:15:11,529 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-12-08 17:15:11,530 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-12-08 17:15:11,530 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:15:11" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/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
[2018-12-08 17:15:11,590 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-12-08 17:15:11,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-12-08 17:15:11,590 INFO  L130     BoogieDeclarations]: Found specification of procedure id
[2018-12-08 17:15:11,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure id
[2018-12-08 17:15:11,665 INFO  L275             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-12-08 17:15:11,665 INFO  L280             CfgBuilder]: Removed 4 assue(true) statements.
[2018-12-08 17:15:11,665 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:15:11 BoogieIcfgContainer
[2018-12-08 17:15:11,665 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-12-08 17:15:11,666 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2018-12-08 17:15:11,666 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2018-12-08 17:15:11,672 INFO  L276        PluginConnector]: CodeCheck initialized
[2018-12-08 17:15:11,672 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:15:11" (1/1) ...
[2018-12-08 17:15:11,678 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-08 17:15:11,694 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:11,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions.
[2018-12-08 17:15:11,700 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2018-12-08 17:15:11,703 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2018-12-08 17:15:11,703 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:11,752 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:11,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:15:11,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:11,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions.
[2018-12-08 17:15:11,884 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions.
[2018-12-08 17:15:11,884 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2018-12-08 17:15:11,884 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:11,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:11,966 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2018-12-08 17:15:12,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:12,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions.
[2018-12-08 17:15:12,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2018-12-08 17:15:12,143 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2018-12-08 17:15:12,144 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:12,153 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:12,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2018-12-08 17:15:12,495 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:12,496 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions.
[2018-12-08 17:15:12,496 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions.
[2018-12-08 17:15:12,497 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2018-12-08 17:15:12,497 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:12,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:12,626 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2018-12-08 17:15:12,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:12,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions.
[2018-12-08 17:15:12,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions.
[2018-12-08 17:15:12,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2018-12-08 17:15:12,937 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:12,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:13,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2018-12-08 17:15:13,434 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:13,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions.
[2018-12-08 17:15:13,435 INFO  L276                IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions.
[2018-12-08 17:15:13,436 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2018-12-08 17:15:13,436 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:13,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:13,595 INFO  L134       CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2018-12-08 17:15:14,048 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:14,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions.
[2018-12-08 17:15:14,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions.
[2018-12-08 17:15:14,049 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2018-12-08 17:15:14,049 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:14,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:14,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2018-12-08 17:15:14,989 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:14,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions.
[2018-12-08 17:15:14,989 INFO  L276                IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions.
[2018-12-08 17:15:14,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2018-12-08 17:15:14,991 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:15,002 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:15,204 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2018-12-08 17:15:16,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:16,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions.
[2018-12-08 17:15:16,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions.
[2018-12-08 17:15:16,089 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-12-08 17:15:16,089 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:16,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:16,314 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-12-08 17:15:17,086 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:17,087 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions.
[2018-12-08 17:15:17,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions.
[2018-12-08 17:15:17,087 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2018-12-08 17:15:17,088 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:17,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:17,325 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2018-12-08 17:15:19,110 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:19,111 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions.
[2018-12-08 17:15:19,111 INFO  L276                IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions.
[2018-12-08 17:15:19,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2018-12-08 17:15:19,112 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:19,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:19,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2018-12-08 17:15:20,870 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:20,870 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 68 states and 81 transitions.
[2018-12-08 17:15:20,871 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions.
[2018-12-08 17:15:20,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2018-12-08 17:15:20,871 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:20,879 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:21,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2018-12-08 17:15:22,587 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:22,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 73 states and 87 transitions.
[2018-12-08 17:15:22,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions.
[2018-12-08 17:15:22,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2018-12-08 17:15:22,590 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:22,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:22,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2018-12-08 17:15:24,781 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:24,782 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 78 states and 93 transitions.
[2018-12-08 17:15:24,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions.
[2018-12-08 17:15:24,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2018-12-08 17:15:24,783 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:24,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:25,160 INFO  L134       CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2018-12-08 17:15:26,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:26,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 83 states and 99 transitions.
[2018-12-08 17:15:26,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions.
[2018-12-08 17:15:26,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2018-12-08 17:15:26,940 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:26,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:27,320 INFO  L134       CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2018-12-08 17:15:29,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:29,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions.
[2018-12-08 17:15:29,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions.
[2018-12-08 17:15:29,310 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2018-12-08 17:15:29,310 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:29,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:29,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2018-12-08 17:15:31,610 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:31,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions.
[2018-12-08 17:15:31,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions.
[2018-12-08 17:15:31,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 106
[2018-12-08 17:15:31,611 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:31,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:32,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2018-12-08 17:15:34,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:34,016 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 98 states and 117 transitions.
[2018-12-08 17:15:34,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions.
[2018-12-08 17:15:34,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2018-12-08 17:15:34,016 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:34,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:34,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked.
[2018-12-08 17:15:35,383 WARN  L180               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2018-12-08 17:15:37,883 WARN  L180               SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2018-12-08 17:15:38,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:38,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 103 states and 123 transitions.
[2018-12-08 17:15:38,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions.
[2018-12-08 17:15:38,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 118
[2018-12-08 17:15:38,539 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:38,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:39,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked.
[2018-12-08 17:15:41,313 WARN  L180               SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2018-12-08 17:15:42,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:42,581 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 108 states and 129 transitions.
[2018-12-08 17:15:42,582 INFO  L276                IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions.
[2018-12-08 17:15:42,582 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2018-12-08 17:15:42,583 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:42,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:15:43,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked.
[2018-12-08 17:15:43,674 WARN  L180               SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2018-12-08 17:15:44,623 WARN  L180               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2018-12-08 17:15:47,611 WARN  L180               SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2018-12-08 17:15:48,182 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:15:48,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 113 states and 135 transitions.
[2018-12-08 17:15:48,183 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions.
[2018-12-08 17:15:48,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 130
[2018-12-08 17:15:48,185 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:15:48,252 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:15:48,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:15:54,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:15:54,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:15:54,867 WARN  L497      CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations.
[2018-12-08 17:15:54,903 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 05:15:54 ImpRootNode
[2018-12-08 17:15:54,903 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2018-12-08 17:15:54,904 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2018-12-08 17:15:54,904 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2018-12-08 17:15:54,904 INFO  L276        PluginConnector]: Witness Printer initialized
[2018-12-08 17:15:54,904 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:15:11" (3/4) ...
[2018-12-08 17:15:54,906 INFO  L138         WitnessPrinter]: Generating witness for reachability counterexample
[2018-12-08 17:15:54,954 INFO  L145         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_00b27e03-d823-4145-b922-4ebd84b5da5c/bin-2019/ukojak/witness.graphml
[2018-12-08 17:15:54,954 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-12-08 17:15:54,954 INFO  L168              Benchmark]: Toolchain (without parser) took 43574.08 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 282.1 MB). Free memory was 956.0 MB in the beginning and 902.0 MB in the end (delta: 54.0 MB). Peak memory consumption was 336.1 MB. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,955 INFO  L168              Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,955 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 119.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,955 INFO  L168              Benchmark]: Boogie Procedure Inliner took 18.36 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,956 INFO  L168              Benchmark]: Boogie Preprocessor took 8.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,956 INFO  L168              Benchmark]: RCFGBuilder took 136.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,956 INFO  L168              Benchmark]: CodeCheck took 43237.55 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 902.0 MB in the end (delta: 197.5 MB). Peak memory consumption was 366.3 MB. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,957 INFO  L168              Benchmark]: Witness Printer took 50.36 ms. Allocated memory is still 1.3 GB. Free memory is still 902.0 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-08 17:15:54,959 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck:
  - StatisticsResult: Ultimate CodeCheck benchmark data
    CFG has 2 procedures, 15 locations, 1 error locations. UNSAFE Result, 43.1s OverallTime, 21 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7340032 SDtfs, 3145724 SDslu, 5242872 SDs, 0 SdLazy, 27262936 SolverSat, 13631468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7075 GetRequests, 6216 SyntacticMatches, 551 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34910 ImplicationChecksByTransitivity, 35.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 6.6s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 438928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available
  - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L10]              unsigned int input = __VERIFIER_nondet_uint();
[L11]  CALL, EXPR  id(input)
       VAL         [\old(x)=20]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=20, x=20]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=19]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=19, x=19]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=18]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=18, x=18]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=17]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=17, x=17]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=16]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=16, x=16]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=15]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=15, x=15]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=14]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=14, x=14]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=13]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=13, x=13]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=12]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=12, x=12]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=11]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=11, x=11]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=10]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=10, x=10]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=9]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=9, x=9]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=8]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=8, x=8]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=7]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=7, x=7]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=6]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=6, x=6]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=5]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=5, x=5]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=4]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=4, x=4]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=3]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=3, x=3]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=2]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=2, x=2]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=1]
[L5]   COND FALSE  !(x==0)
       VAL         [\old(x)=1, x=1]
[L6]   CALL, EXPR  id(x-1)
       VAL         [\old(x)=0]
[L5]   COND TRUE   x==0
[L5]               return 0;
       VAL         [\old(x)=0, \result=0, x=0]
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=1, id(x-1)=0, x=1]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=2, id(x-1)=1, x=2]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=3, id(x-1)=2, x=3]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=4, id(x-1)=3, x=4]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=5, id(x-1)=4, x=5]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=6, id(x-1)=5, x=6]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=7, id(x-1)=6, x=7]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=8, id(x-1)=7, x=8]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=9, id(x-1)=8, x=9]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=10, id(x-1)=9, x=10]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=11, id(x-1)=10, x=11]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=12, id(x-1)=11, x=12]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=13, id(x-1)=12, x=13]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=14, id(x-1)=13, x=14]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=15, id(x-1)=14, x=15]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=16, id(x-1)=15, x=16]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=17, id(x-1)=16, x=17]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=18, id(x-1)=17, x=18]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=19, id(x-1)=18, x=19]
[L6]               return id(x-1) + 1;
[L6]   RET, EXPR   id(x-1)
       VAL         [\old(x)=20, id(x-1)=19, x=20]
[L6]               return id(x-1) + 1;
[L11]  RET, EXPR   id(input)
[L11]              unsigned int result = id(input);
[L12]  COND TRUE   result == 20
[L13]              __VERIFIER_error()

 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 119.92 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 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 18.36 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 8.82 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * RCFGBuilder took 136.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB.
 * CodeCheck took 43237.55 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 168.8 MB). Free memory was 1.1 GB in the beginning and 902.0 MB in the end (delta: 197.5 MB). Peak memory consumption was 366.3 MB. Max. memory is 11.5 GB.
 * Witness Printer took 50.36 ms. Allocated memory is still 1.3 GB. Free memory is still 902.0 MB. There was no memory consumed. Max. memory is 11.5 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...