./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15_false-unreach-call_true-termination.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 1dbac8bc
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/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 ad4e6ad99a266ddeead98987e8e44db723af5bc7
................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 0.1.23-1dbac8b
[2018-11-10 04:53:25,302 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-11-10 04:53:25,303 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-10 04:53:25,309 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-10 04:53:25,309 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-10 04:53:25,310 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-11-10 04:53:25,311 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-11-10 04:53:25,312 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-11-10 04:53:25,313 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-11-10 04:53:25,314 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-11-10 04:53:25,314 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-11-10 04:53:25,315 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-11-10 04:53:25,315 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-11-10 04:53:25,316 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-10 04:53:25,316 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-10 04:53:25,317 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-10 04:53:25,317 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-10 04:53:25,318 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-10 04:53:25,320 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-11-10 04:53:25,321 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-11-10 04:53:25,321 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-10 04:53:25,322 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-11-10 04:53:25,324 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-11-10 04:53:25,324 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-11-10 04:53:25,324 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-10 04:53:25,325 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-10 04:53:25,325 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-11-10 04:53:25,326 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-11-10 04:53:25,326 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-11-10 04:53:25,327 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-11-10 04:53:25,327 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-11-10 04:53:25,328 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-11-10 04:53:25,328 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-11-10 04:53:25,328 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-11-10 04:53:25,329 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-11-10 04:53:25,329 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-11-10 04:53:25,329 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf
[2018-11-10 04:53:25,337 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-11-10 04:53:25,337 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-10 04:53:25,337 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-11-10 04:53:25,337 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-11-10 04:53:25,338 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-11-10 04:53:25,338 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-11-10 04:53:25,338 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-10 04:53:25,338 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-11-10 04:53:25,338 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-11-10 04:53:25,338 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-11-10 04:53:25,338 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-11-10 04:53:25,339 INFO  L131        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2018-11-10 04:53:25,339 INFO  L133        SettingsManager]:  * Timeout in seconds=1000000
[2018-11-10 04:53:25,339 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2018-11-10 04:53:25,340 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-11-10 04:53:25,340 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-11-10 04:53:25,341 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_8d51be1b-8302-40f9-8b14-90b4701209ee/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 -> ad4e6ad99a266ddeead98987e8e44db723af5bc7
[2018-11-10 04:53:25,365 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-10 04:53:25,374 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-10 04:53:25,377 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-10 04:53:25,378 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-11-10 04:53:25,378 INFO  L276        PluginConnector]: CDTParser initialized
[2018-11-10 04:53:25,379 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/id_i15_o15_false-unreach-call_true-termination.c
[2018-11-10 04:53:25,426 INFO  L218              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/data/4ff56a5dd/224617f75793486ca2eeb2415a318398/FLAG2e0e02f06
[2018-11-10 04:53:25,756 INFO  L298              CDTParser]: Found 1 translation units.
[2018-11-10 04:53:25,757 INFO  L158              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/sv-benchmarks/c/recursive-simple/id_i15_o15_false-unreach-call_true-termination.c
[2018-11-10 04:53:25,762 INFO  L346              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/data/4ff56a5dd/224617f75793486ca2eeb2415a318398/FLAG2e0e02f06
[2018-11-10 04:53:25,774 INFO  L354              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/data/4ff56a5dd/224617f75793486ca2eeb2415a318398
[2018-11-10 04:53:25,776 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-10 04:53:25,778 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2018-11-10 04:53:25,778 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-10 04:53:25,778 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-10 04:53:25,781 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-10 04:53:25,782 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,784 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729766a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25, skipping insertion in model container
[2018-11-10 04:53:25,784 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,793 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-11-10 04:53:25,805 INFO  L174         MainTranslator]: Built tables and reachable declarations
[2018-11-10 04:53:25,909 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-11-10 04:53:25,911 INFO  L189         MainTranslator]: Completed pre-run
[2018-11-10 04:53:25,919 INFO  L202          PostProcessor]: Analyzing one entry point: main
[2018-11-10 04:53:25,927 INFO  L193         MainTranslator]: Completed translation
[2018-11-10 04:53:25,927 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25 WrapperNode
[2018-11-10 04:53:25,927 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-10 04:53:25,928 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-11-10 04:53:25,928 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-11-10 04:53:25,928 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-11-10 04:53:25,933 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,936 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,945 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-11-10 04:53:25,945 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-11-10 04:53:25,945 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-11-10 04:53:25,945 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-11-10 04:53:25,950 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,950 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,951 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,951 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,952 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,953 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,953 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
[2018-11-10 04:53:25,954 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-11-10 04:53:25,954 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-11-10 04:53:25,954 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-11-10 04:53:25,954 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-11-10 04:53:25,955 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:53:25" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/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
[2018-11-10 04:53:26,024 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-11-10 04:53:26,024 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-11-10 04:53:26,025 INFO  L130     BoogieDeclarations]: Found specification of procedure id
[2018-11-10 04:53:26,025 INFO  L138     BoogieDeclarations]: Found implementation of procedure id
[2018-11-10 04:53:26,117 INFO  L341             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-11-10 04:53:26,118 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:26 BoogieIcfgContainer
[2018-11-10 04:53:26,118 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-11-10 04:53:26,118 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2018-11-10 04:53:26,118 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2018-11-10 04:53:26,125 INFO  L276        PluginConnector]: CodeCheck initialized
[2018-11-10 04:53:26,125 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:26" (1/1) ...
[2018-11-10 04:53:26,133 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-10 04:53:26,158 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:26,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions.
[2018-11-10 04:53:26,167 INFO  L276                IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions.
[2018-11-10 04:53:26,171 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2018-11-10 04:53:26,171 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:26,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:26,281 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-10 04:53:26,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:26,339 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions.
[2018-11-10 04:53:26,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2018-11-10 04:53:26,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2018-11-10 04:53:26,340 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:26,345 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:26,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2018-11-10 04:53:26,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:26,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions.
[2018-11-10 04:53:26,546 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions.
[2018-11-10 04:53:26,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2018-11-10 04:53:26,547 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:26,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:26,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2018-11-10 04:53:26,683 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:26,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions.
[2018-11-10 04:53:26,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions.
[2018-11-10 04:53:26,684 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2018-11-10 04:53:26,685 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:26,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:26,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2018-11-10 04:53:27,592 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:27,592 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 35 states and 56 transitions.
[2018-11-10 04:53:27,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions.
[2018-11-10 04:53:27,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2018-11-10 04:53:27,593 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:27,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:27,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2018-11-10 04:53:27,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:27,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 38 states and 64 transitions.
[2018-11-10 04:53:27,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 38 states and 64 transitions.
[2018-11-10 04:53:27,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2018-11-10 04:53:27,941 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:27,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:27,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2018-11-10 04:53:28,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:28,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 41 states and 74 transitions.
[2018-11-10 04:53:28,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 74 transitions.
[2018-11-10 04:53:28,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2018-11-10 04:53:28,158 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:28,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:28,334 INFO  L134       CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2018-11-10 04:53:29,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:29,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 57 states and 107 transitions.
[2018-11-10 04:53:29,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 107 transitions.
[2018-11-10 04:53:29,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2018-11-10 04:53:29,733 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:29,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:29,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2018-11-10 04:53:30,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:30,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 68 states and 129 transitions.
[2018-11-10 04:53:30,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 129 transitions.
[2018-11-10 04:53:30,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2018-11-10 04:53:30,936 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:30,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:30,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked.
[2018-11-10 04:53:31,385 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:31,386 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 73 states and 137 transitions.
[2018-11-10 04:53:31,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 137 transitions.
[2018-11-10 04:53:31,387 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2018-11-10 04:53:31,387 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:31,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:31,616 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2018-11-10 04:53:33,199 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:33,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 87 states and 164 transitions.
[2018-11-10 04:53:33,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 164 transitions.
[2018-11-10 04:53:33,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2018-11-10 04:53:33,202 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:33,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:33,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked.
[2018-11-10 04:53:33,395 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:33,396 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 89 states and 165 transitions.
[2018-11-10 04:53:33,396 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 165 transitions.
[2018-11-10 04:53:33,397 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-11-10 04:53:33,397 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:33,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:33,652 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-11-10 04:53:34,173 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:34,173 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 92 states and 174 transitions.
[2018-11-10 04:53:34,173 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 174 transitions.
[2018-11-10 04:53:34,175 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-11-10 04:53:34,175 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:34,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:34,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-11-10 04:53:34,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:34,611 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 95 states and 181 transitions.
[2018-11-10 04:53:34,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 95 states and 181 transitions.
[2018-11-10 04:53:34,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-11-10 04:53:34,612 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:34,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:34,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-11-10 04:53:35,084 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:35,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 98 states and 188 transitions.
[2018-11-10 04:53:35,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 98 states and 188 transitions.
[2018-11-10 04:53:35,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-11-10 04:53:35,086 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:35,089 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:35,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-11-10 04:53:35,489 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:35,489 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 101 states and 200 transitions.
[2018-11-10 04:53:35,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 200 transitions.
[2018-11-10 04:53:35,490 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2018-11-10 04:53:35,491 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:35,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:35,508 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked.
[2018-11-10 04:53:35,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:35,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 104 states and 215 transitions.
[2018-11-10 04:53:35,885 INFO  L276                IsEmpty]: Start isEmpty. Operand 104 states and 215 transitions.
[2018-11-10 04:53:35,886 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2018-11-10 04:53:35,886 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:35,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:35,968 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2018-11-10 04:53:36,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:36,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 107 states and 225 transitions.
[2018-11-10 04:53:36,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 225 transitions.
[2018-11-10 04:53:36,456 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2018-11-10 04:53:36,456 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:36,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:36,474 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2018-11-10 04:53:37,735 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:37,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 116 states and 255 transitions.
[2018-11-10 04:53:37,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 255 transitions.
[2018-11-10 04:53:37,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2018-11-10 04:53:37,737 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:37,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:37,757 INFO  L134       CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2018-11-10 04:53:38,176 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:38,177 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 119 states and 272 transitions.
[2018-11-10 04:53:38,177 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 272 transitions.
[2018-11-10 04:53:38,177 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2018-11-10 04:53:38,178 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:38,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:38,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2018-11-10 04:53:38,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:38,772 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 122 states and 283 transitions.
[2018-11-10 04:53:38,772 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 283 transitions.
[2018-11-10 04:53:38,773 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2018-11-10 04:53:38,773 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:38,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:38,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2018-11-10 04:53:40,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:40,164 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 131 states and 317 transitions.
[2018-11-10 04:53:40,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 131 states and 317 transitions.
[2018-11-10 04:53:40,165 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2018-11-10 04:53:40,165 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:40,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:40,182 INFO  L134       CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked.
[2018-11-10 04:53:40,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:40,621 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 134 states and 336 transitions.
[2018-11-10 04:53:40,621 INFO  L276                IsEmpty]: Start isEmpty. Operand 134 states and 336 transitions.
[2018-11-10 04:53:40,622 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2018-11-10 04:53:40,622 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:40,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:40,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2018-11-10 04:53:41,314 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:41,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 137 states and 348 transitions.
[2018-11-10 04:53:41,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 137 states and 348 transitions.
[2018-11-10 04:53:41,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2018-11-10 04:53:41,315 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:41,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:41,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2018-11-10 04:53:42,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:42,819 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 146 states and 386 transitions.
[2018-11-10 04:53:42,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 146 states and 386 transitions.
[2018-11-10 04:53:42,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2018-11-10 04:53:42,820 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:42,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:42,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked.
[2018-11-10 04:53:43,391 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:43,392 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 149 states and 407 transitions.
[2018-11-10 04:53:43,392 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 407 transitions.
[2018-11-10 04:53:43,393 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2018-11-10 04:53:43,393 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:43,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:44,611 INFO  L134       CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2018-11-10 04:53:50,064 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:50,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 172 states and 476 transitions.
[2018-11-10 04:53:50,066 INFO  L276                IsEmpty]: Start isEmpty. Operand 172 states and 476 transitions.
[2018-11-10 04:53:50,066 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2018-11-10 04:53:50,067 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:50,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:50,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2018-11-10 04:53:50,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:50,924 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 177 states and 487 transitions.
[2018-11-10 04:53:50,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 177 states and 487 transitions.
[2018-11-10 04:53:50,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 88
[2018-11-10 04:53:50,924 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:50,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:51,514 INFO  L134       CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked.
[2018-11-10 04:53:57,768 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:53:57,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 205 states and 562 transitions.
[2018-11-10 04:53:57,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 562 transitions.
[2018-11-10 04:53:57,770 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2018-11-10 04:53:57,770 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:53:57,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:53:58,400 INFO  L134       CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2018-11-10 04:54:04,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:54:04,278 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 228 states and 631 transitions.
[2018-11-10 04:54:04,278 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 631 transitions.
[2018-11-10 04:54:04,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 94
[2018-11-10 04:54:04,279 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:54:04,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-10 04:54:04,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked.
[2018-11-10 04:54:05,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-11-10 04:54:05,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 233 states and 637 transitions.
[2018-11-10 04:54:05,370 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 637 transitions.
[2018-11-10 04:54:05,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 100
[2018-11-10 04:54:05,371 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2018-11-10 04:54:05,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:54:05,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:54:05,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:54:05,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-11-10 04:54:05,480 WARN  L496      CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations.
[2018-11-10 04:54:05,513 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 04:54:05 ImpRootNode
[2018-11-10 04:54:05,513 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2018-11-10 04:54:05,514 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2018-11-10 04:54:05,514 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2018-11-10 04:54:05,514 INFO  L276        PluginConnector]: Witness Printer initialized
[2018-11-10 04:54:05,514 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:53:26" (3/4) ...
[2018-11-10 04:54:05,517 INFO  L138         WitnessPrinter]: Generating witness for reachability counterexample
[2018-11-10 04:54:05,571 INFO  L145         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8d51be1b-8302-40f9-8b14-90b4701209ee/bin-2019/ukojak/witness.graphml
[2018-11-10 04:54:05,571 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-11-10 04:54:05,572 INFO  L168              Benchmark]: Toolchain (without parser) took 39794.85 ms. Allocated memory was 1.0 GB in the beginning and 1.8 GB in the end (delta: 758.6 MB). Free memory was 961.9 MB in the beginning and 1.6 GB in the end (delta: -594.9 MB). Peak memory consumption was 163.7 MB. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,573 INFO  L168              Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,573 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 149.21 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,575 INFO  L168              Benchmark]: Boogie Procedure Inliner took 17.06 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,575 INFO  L168              Benchmark]: Boogie Preprocessor took 8.96 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,576 INFO  L168              Benchmark]: RCFGBuilder took 163.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,576 INFO  L168              Benchmark]: CodeCheck took 39394.99 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 621.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -431.7 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,577 INFO  L168              Benchmark]: Witness Printer took 57.45 ms. Allocated memory is still 1.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-11-10 04:54:05,581 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, 16 locations, 1 error locations. UNSAFE Result, 39.3s OverallTime, 31 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1073741824 SDtfs, -1153395632 SDslu, -696178528 SDs, 0 SdLazy, 1364662742 SolverSat, 385727866 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28421 GetRequests, 26863 SyntacticMatches, 900 SemanticMatches, 658 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188893 ImplicationChecksByTransitivity, 35.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1809 NumberOfCodeBlocks, 1809 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1680 ConstructedInterpolants, 0 QuantifiedInterpolants, 251496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 1 PerfectInterpolantSequences, 3594/7188 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]              int input = 15;
[L11]  CALL, EXPR  id(input)
       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]   RET         return 0;
       VAL         [\old(x)=0, \result=0, x=0]
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=1, id(x-1)=0, x=1]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=2, id(x-1)=1, x=2]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=3, id(x-1)=2, x=3]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=4, id(x-1)=3, x=4]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=5, id(x-1)=4, x=5]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=6, id(x-1)=5, x=6]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=7, id(x-1)=6, x=7]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=8, id(x-1)=7, x=8]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=9, id(x-1)=8, x=9]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=10, id(x-1)=9, x=10]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=11, id(x-1)=10, x=11]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=12, id(x-1)=11, x=12]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=13, id(x-1)=12, x=13]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=14, id(x-1)=13, x=14]
[L6]   RET         return id(x-1) + 1;
[L6]   EXPR        id(x-1)
       VAL         [\old(x)=15, id(x-1)=14, x=15]
[L6]   RET         return id(x-1) + 1;
[L11]  EXPR        id(input)
[L11]              int result = id(input);
[L12]  COND TRUE   result == 15
[L13]              __VERIFIER_error()

 * 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 149.21 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 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 17.06 ms. Allocated memory is still 1.0 GB. Free memory is still 951.2 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 8.96 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB.
 * RCFGBuilder took 163.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB.
 * CodeCheck took 39394.99 ms. Allocated memory was 1.2 GB in the beginning and 1.8 GB in the end (delta: 621.3 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -431.7 MB). Peak memory consumption was 189.6 MB. Max. memory is 11.5 GB.
 * Witness Printer took 57.45 ms. Allocated memory is still 1.8 GB. Free memory is still 1.6 GB. There was no memory consumed. Max. memory is 11.5 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...