./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i --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_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i -s /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/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 e5083763cd1026dac92f37bc5a05779baf01a71b
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 16:59:48,657 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-12-08 16:59:48,659 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-12-08 16:59:48,667 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-12-08 16:59:48,667 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-12-08 16:59:48,667 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-12-08 16:59:48,668 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-12-08 16:59:48,669 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-12-08 16:59:48,670 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-12-08 16:59:48,670 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-12-08 16:59:48,671 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-12-08 16:59:48,671 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-12-08 16:59:48,672 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-12-08 16:59:48,672 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-12-08 16:59:48,673 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-12-08 16:59:48,674 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-12-08 16:59:48,674 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-12-08 16:59:48,676 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-12-08 16:59:48,677 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-12-08 16:59:48,678 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-12-08 16:59:48,679 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-12-08 16:59:48,680 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-12-08 16:59:48,681 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-12-08 16:59:48,681 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-12-08 16:59:48,681 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-12-08 16:59:48,682 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-12-08 16:59:48,683 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-12-08 16:59:48,683 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-12-08 16:59:48,683 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-12-08 16:59:48,684 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-12-08 16:59:48,684 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-12-08 16:59:48,684 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-12-08 16:59:48,684 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-12-08 16:59:48,685 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-12-08 16:59:48,685 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-12-08 16:59:48,686 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-12-08 16:59:48,686 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf
[2018-12-08 16:59:48,694 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-12-08 16:59:48,694 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-12-08 16:59:48,694 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-12-08 16:59:48,694 INFO  L133        SettingsManager]:  * ... to procedures called more than once=ALWAYS
[2018-12-08 16:59:48,695 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-12-08 16:59:48,695 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-12-08 16:59:48,695 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Use constant arrays=true
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-12-08 16:59:48,696 INFO  L131        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Timeout in seconds=1000000
[2018-12-08 16:59:48,696 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2018-12-08 16:59:48,696 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2018-12-08 16:59:48,696 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-12-08 16:59:48,697 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-12-08 16:59:48,697 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_833be1bd-05f8-4bae-ac41-ba95433c34c2/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 -> e5083763cd1026dac92f37bc5a05779baf01a71b
[2018-12-08 16:59:48,714 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-12-08 16:59:48,722 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-12-08 16:59:48,723 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-12-08 16:59:48,724 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-12-08 16:59:48,724 INFO  L276        PluginConnector]: CDTParser initialized
[2018-12-08 16:59:48,725 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/../../sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i
[2018-12-08 16:59:48,758 INFO  L221              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/data/f7c8f25f0/5737860e8a5c416dad2e092469e5d542/FLAGe9be0f065
[2018-12-08 16:59:49,182 INFO  L307              CDTParser]: Found 1 translation units.
[2018-12-08 16:59:49,182 INFO  L161              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/sv-benchmarks/c/forester-heap/sll-queue_false-unreach-call_false-valid-memcleanup.i
[2018-12-08 16:59:49,189 INFO  L355              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/data/f7c8f25f0/5737860e8a5c416dad2e092469e5d542/FLAGe9be0f065
[2018-12-08 16:59:49,197 INFO  L363              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/data/f7c8f25f0/5737860e8a5c416dad2e092469e5d542
[2018-12-08 16:59:49,199 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-12-08 16:59:49,200 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2018-12-08 16:59:49,200 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-12-08 16:59:49,201 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-12-08 16:59:49,203 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-12-08 16:59:49,203 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,205 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e31f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49, skipping insertion in model container
[2018-12-08 16:59:49,205 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,209 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-12-08 16:59:49,228 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2018-12-08 16:59:49,372 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-08 16:59:49,410 INFO  L191         MainTranslator]: Completed pre-run
[2018-12-08 16:59:49,435 INFO  L203          PostProcessor]: Analyzing one entry point: main
[2018-12-08 16:59:49,455 INFO  L195         MainTranslator]: Completed translation
[2018-12-08 16:59:49,456 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49 WrapperNode
[2018-12-08 16:59:49,456 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-12-08 16:59:49,456 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-12-08 16:59:49,456 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-12-08 16:59:49,456 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-12-08 16:59:49,461 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,469 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,483 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-12-08 16:59:49,484 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-12-08 16:59:49,484 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-12-08 16:59:49,484 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-12-08 16:59:49,489 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,490 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,491 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,491 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,496 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,500 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,501 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,503 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-12-08 16:59:49,503 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-12-08 16:59:49,503 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-12-08 16:59:49,503 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-12-08 16:59:49,504 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:59:49" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/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 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.alloc
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2018-12-08 16:59:49,535 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-12-08 16:59:49,535 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-12-08 16:59:49,827 INFO  L275             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-12-08 16:59:49,827 INFO  L280             CfgBuilder]: Removed 35 assue(true) statements.
[2018-12-08 16:59:49,827 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:49 BoogieIcfgContainer
[2018-12-08 16:59:49,827 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-12-08 16:59:49,828 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2018-12-08 16:59:49,828 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2018-12-08 16:59:49,835 INFO  L276        PluginConnector]: CodeCheck initialized
[2018-12-08 16:59:49,835 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:49" (1/1) ...
[2018-12-08 16:59:49,842 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-12-08 16:59:49,862 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:49,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 76 states and 125 transitions.
[2018-12-08 16:59:49,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 125 transitions.
[2018-12-08 16:59:49,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2018-12-08 16:59:49,868 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:49,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:49,938 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 16:59:49,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:49,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 76 states and 120 transitions.
[2018-12-08 16:59:49,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions.
[2018-12-08 16:59:49,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2018-12-08 16:59:49,943 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:49,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:49,990 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 16:59:50,007 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,008 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 79 states and 122 transitions.
[2018-12-08 16:59:50,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 122 transitions.
[2018-12-08 16:59:50,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2018-12-08 16:59:50,008 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,022 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 16:59:50,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,027 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 80 states and 123 transitions.
[2018-12-08 16:59:50,027 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions.
[2018-12-08 16:59:50,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2018-12-08 16:59:50,027 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,034 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,051 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 16:59:50,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,095 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 82 states and 124 transitions.
[2018-12-08 16:59:50,095 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 124 transitions.
[2018-12-08 16:59:50,095 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2018-12-08 16:59:50,095 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,120 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 16:59:50,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,188 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 87 states and 129 transitions.
[2018-12-08 16:59:50,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions.
[2018-12-08 16:59:50,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2018-12-08 16:59:50,188 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,197 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 16:59:50,202 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,203 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 88 states and 127 transitions.
[2018-12-08 16:59:50,203 INFO  L276                IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions.
[2018-12-08 16:59:50,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-12-08 16:59:50,203 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,212 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 16:59:50,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions.
[2018-12-08 16:59:50,221 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions.
[2018-12-08 16:59:50,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2018-12-08 16:59:50,221 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:50,418 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 80 states and 115 transitions.
[2018-12-08 16:59:50,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions.
[2018-12-08 16:59:50,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-12-08 16:59:50,419 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,424 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:50,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,463 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 78 states and 113 transitions.
[2018-12-08 16:59:50,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions.
[2018-12-08 16:59:50,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2018-12-08 16:59:50,464 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,497 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 16:59:50,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,529 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 83 states and 116 transitions.
[2018-12-08 16:59:50,529 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 116 transitions.
[2018-12-08 16:59:50,529 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2018-12-08 16:59:50,529 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:50,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:50,862 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:50,862 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 92 states and 127 transitions.
[2018-12-08 16:59:50,862 INFO  L276                IsEmpty]: Start isEmpty. Operand 92 states and 127 transitions.
[2018-12-08 16:59:50,862 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2018-12-08 16:59:50,862 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:50,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:51,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:51,491 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:51,491 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 107 states and 146 transitions.
[2018-12-08 16:59:51,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 107 states and 146 transitions.
[2018-12-08 16:59:51,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2018-12-08 16:59:51,493 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:51,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:51,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:51,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:51,874 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 109 states and 149 transitions.
[2018-12-08 16:59:51,874 INFO  L276                IsEmpty]: Start isEmpty. Operand 109 states and 149 transitions.
[2018-12-08 16:59:51,875 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2018-12-08 16:59:51,875 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:51,878 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:51,967 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2018-12-08 16:59:52,541 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:52,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 119 states and 167 transitions.
[2018-12-08 16:59:52,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 167 transitions.
[2018-12-08 16:59:52,542 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2018-12-08 16:59:52,543 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:52,548 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:52,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2018-12-08 16:59:52,633 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:52,634 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 121 states and 170 transitions.
[2018-12-08 16:59:52,634 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 170 transitions.
[2018-12-08 16:59:52,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2018-12-08 16:59:52,634 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:52,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:52,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:53,198 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:53,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 124 states and 175 transitions.
[2018-12-08 16:59:53,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 175 transitions.
[2018-12-08 16:59:53,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2018-12-08 16:59:53,199 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:53,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:53,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2018-12-08 16:59:53,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:53,318 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 127 states and 180 transitions.
[2018-12-08 16:59:53,318 INFO  L276                IsEmpty]: Start isEmpty. Operand 127 states and 180 transitions.
[2018-12-08 16:59:53,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2018-12-08 16:59:53,319 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:53,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:53,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:53,464 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:53,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 128 states and 180 transitions.
[2018-12-08 16:59:53,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 128 states and 180 transitions.
[2018-12-08 16:59:53,465 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2018-12-08 16:59:53,465 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:53,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:53,714 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:54,947 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:54,948 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 148 states and 215 transitions.
[2018-12-08 16:59:54,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 148 states and 215 transitions.
[2018-12-08 16:59:54,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2018-12-08 16:59:54,948 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:54,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:55,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:55,269 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:55,269 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 149 states and 219 transitions.
[2018-12-08 16:59:55,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 219 transitions.
[2018-12-08 16:59:55,270 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2018-12-08 16:59:55,270 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:55,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:55,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:55,896 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:55,896 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 158 states and 229 transitions.
[2018-12-08 16:59:55,896 INFO  L276                IsEmpty]: Start isEmpty. Operand 158 states and 229 transitions.
[2018-12-08 16:59:55,896 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2018-12-08 16:59:55,896 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:55,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:55,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:56,108 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:56,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 159 states and 229 transitions.
[2018-12-08 16:59:56,109 INFO  L276                IsEmpty]: Start isEmpty. Operand 159 states and 229 transitions.
[2018-12-08 16:59:56,109 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2018-12-08 16:59:56,109 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:56,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:56,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 16:59:59,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 16:59:59,051 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 179 states and 263 transitions.
[2018-12-08 16:59:59,052 INFO  L276                IsEmpty]: Start isEmpty. Operand 179 states and 263 transitions.
[2018-12-08 16:59:59,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2018-12-08 16:59:59,052 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 16:59:59,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 16:59:59,642 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:02,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:02,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 199 states and 294 transitions.
[2018-12-08 17:00:02,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 199 states and 294 transitions.
[2018-12-08 17:00:02,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2018-12-08 17:00:02,365 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:02,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:02,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:03,156 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:03,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 208 states and 307 transitions.
[2018-12-08 17:00:03,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 208 states and 307 transitions.
[2018-12-08 17:00:03,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2018-12-08 17:00:03,157 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:03,163 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:03,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:03,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:03,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 209 states and 307 transitions.
[2018-12-08 17:00:03,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 209 states and 307 transitions.
[2018-12-08 17:00:03,468 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2018-12-08 17:00:03,468 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:03,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:03,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2018-12-08 17:00:04,539 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:04,539 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 216 states and 317 transitions.
[2018-12-08 17:00:04,539 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 317 transitions.
[2018-12-08 17:00:04,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2018-12-08 17:00:04,539 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:04,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:05,053 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:06,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:06,727 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 228 states and 336 transitions.
[2018-12-08 17:00:06,727 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 336 transitions.
[2018-12-08 17:00:06,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2018-12-08 17:00:06,728 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:06,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:06,781 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:07,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:07,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 236 states and 344 transitions.
[2018-12-08 17:00:07,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 344 transitions.
[2018-12-08 17:00:07,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2018-12-08 17:00:07,549 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:07,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:08,197 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:12,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:12,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 255 states and 379 transitions.
[2018-12-08 17:00:12,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 255 states and 379 transitions.
[2018-12-08 17:00:12,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2018-12-08 17:00:12,852 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:12,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:12,875 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:14,308 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:14,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 261 states and 392 transitions.
[2018-12-08 17:00:14,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 261 states and 392 transitions.
[2018-12-08 17:00:14,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2018-12-08 17:00:14,309 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:14,312 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:14,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:15,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:15,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 270 states and 404 transitions.
[2018-12-08 17:00:15,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 270 states and 404 transitions.
[2018-12-08 17:00:15,703 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2018-12-08 17:00:15,703 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:15,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:16,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:22,772 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:22,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 294 states and 442 transitions.
[2018-12-08 17:00:22,773 INFO  L276                IsEmpty]: Start isEmpty. Operand 294 states and 442 transitions.
[2018-12-08 17:00:22,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2018-12-08 17:00:22,774 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:22,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:23,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:29,099 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:29,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 312 states and 472 transitions.
[2018-12-08 17:00:29,100 INFO  L276                IsEmpty]: Start isEmpty. Operand 312 states and 472 transitions.
[2018-12-08 17:00:29,100 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2018-12-08 17:00:29,100 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:29,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:29,570 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:31,524 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:31,525 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 318 states and 485 transitions.
[2018-12-08 17:00:31,525 INFO  L276                IsEmpty]: Start isEmpty. Operand 318 states and 485 transitions.
[2018-12-08 17:00:31,525 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2018-12-08 17:00:31,525 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:31,531 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:33,374 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:39,650 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:39,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 345 states and 531 transitions.
[2018-12-08 17:00:39,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 345 states and 531 transitions.
[2018-12-08 17:00:39,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2018-12-08 17:00:39,651 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:39,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:39,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2018-12-08 17:00:43,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:43,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 347 states and 535 transitions.
[2018-12-08 17:00:43,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 347 states and 535 transitions.
[2018-12-08 17:00:43,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2018-12-08 17:00:43,215 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:43,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-12-08 17:00:44,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-12-08 17:00:47,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2018-12-08 17:00:47,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 353 states and 549 transitions.
[2018-12-08 17:00:47,069 INFO  L276                IsEmpty]: Start isEmpty. Operand 353 states and 549 transitions.
[2018-12-08 17:00:47,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2018-12-08 17:00:47,070 INFO  L431      CodeCheckObserver]: Error Path is FOUND.
[2018-12-08 17:00:47,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:00:47,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:00:47,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:00:47,486 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2018-12-08 17:00:47,512 WARN  L497      CodeCheckObserver]: This program is UNSAFE, Check terminated with 39 iterations.
[2018-12-08 17:00:47,542 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 05:00:47 ImpRootNode
[2018-12-08 17:00:47,542 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2018-12-08 17:00:47,542 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2018-12-08 17:00:47,542 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2018-12-08 17:00:47,542 INFO  L276        PluginConnector]: Witness Printer initialized
[2018-12-08 17:00:47,543 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:59:49" (3/4) ...
[2018-12-08 17:00:47,545 INFO  L138         WitnessPrinter]: Generating witness for reachability counterexample
[2018-12-08 17:00:47,592 INFO  L145         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_833be1bd-05f8-4bae-ac41-ba95433c34c2/bin-2019/ukojak/witness.graphml
[2018-12-08 17:00:47,593 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2018-12-08 17:00:47,593 INFO  L168              Benchmark]: Toolchain (without parser) took 58393.78 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 406.8 MB). Free memory was 950.6 MB in the beginning and 1.3 GB in the end (delta: -315.6 MB). Peak memory consumption was 91.2 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,594 INFO  L168              Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,594 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 255.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,595 INFO  L168              Benchmark]: Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,595 INFO  L168              Benchmark]: Boogie Preprocessor took 19.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,595 INFO  L168              Benchmark]: RCFGBuilder took 324.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,595 INFO  L168              Benchmark]: CodeCheck took 57713.85 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 309.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -243.8 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,596 INFO  L168              Benchmark]: Witness Printer took 50.70 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB.
[2018-12-08 17:00:47,599 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 1 procedures, 85 locations, 14 error locations. UNSAFE Result, 57.6s OverallTime, 39 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 977770200 SDtfs, 859450676 SDslu, -260875284 SDs, 0 SdLazy, 2023996642 SolverSat, -1470617938 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7585 GetRequests, 6606 SyntacticMatches, 333 SemanticMatches, 646 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263103 ImplicationChecksByTransitivity, 53.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 901 NumberOfCodeBlocks, 901 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 823 ConstructedInterpolants, 0 QuantifiedInterpolants, 405737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 10 PerfectInterpolantSequences, 40/403 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: 1035]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L985]               SLL* head = malloc(sizeof(SLL));
[L986]               head->next = ((void*)0)
[L987]               head->data = 0
[L988]               SLL* item = head;
[L989]               int status = 0;
[L991]   COND TRUE   __VERIFIER_nondet_int()
[L993]               item->next = malloc(sizeof(SLL))
[L994]   EXPR        item->next
[L994]               item = item->next
[L995]               item->next = ((void*)0)
[L997]   COND TRUE   !status
[L999]               item->data = 1
[L1000]              status = 1
[L1013]  COND FALSE  !(!(head != ((void*)0)))
[L1014]  COND FALSE  !(!(item != ((void*)0)))
[L991]   COND TRUE   __VERIFIER_nondet_int()
[L993]               item->next = malloc(sizeof(SLL))
[L994]   EXPR        item->next
[L994]               item = item->next
[L995]               item->next = ((void*)0)
[L997]   COND FALSE  !(!status)
[L1002]  COND TRUE   status == 1
[L1004]              item->data = 2
[L1005]              status = 2
[L1013]  COND FALSE  !(!(head != ((void*)0)))
[L1014]  COND FALSE  !(!(item != ((void*)0)))
[L991]   COND TRUE   __VERIFIER_nondet_int()
[L993]               item->next = malloc(sizeof(SLL))
[L994]   EXPR        item->next
[L994]               item = item->next
[L995]               item->next = ((void*)0)
[L997]   COND FALSE  !(!status)
[L1002]  COND FALSE  !(status == 1)
[L1007]  COND TRUE   status >= 2
[L1009]              item->data = 3
[L1010]              status = 3
[L1013]  COND FALSE  !(!(head != ((void*)0)))
[L1014]  COND FALSE  !(!(item != ((void*)0)))
[L991]   COND FALSE  !(__VERIFIER_nondet_int())
[L1017]  COND FALSE  !(!(head != ((void*)0)))
[L1018]  COND FALSE  !(status == 1)
[L1023]  COND FALSE  !(status == 2)
[L1029]  COND TRUE   status == 3
[L1031]  COND FALSE  !(!(head != ((void*)0)))
[L1032]  EXPR        head->next
[L1032]  COND FALSE  !(!(head->next != ((void*)0)))
[L1033]  EXPR        head->next
[L1033]  EXPR        head->next->next
[L1033]  COND FALSE  !(!(head->next->next != ((void*)0)))
[L1034]  EXPR        head->next
[L1034]  EXPR        head->next->next
[L1034]  EXPR        head->next->next->next
[L1034]  COND FALSE  !(!(head->next->next->next != ((void*)0)))
[L1035]  EXPR        head->next
[L1035]  EXPR        head->next->next
[L1035]  EXPR        head->next->next->next
[L1035]  EXPR        head->next->next->next->data
[L1035]  COND TRUE   !(head->next->next->next->data != 3)
[L1035]              __VERIFIER_error()

 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 255.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB.
 * Boogie Procedure Inliner took 27.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 19.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB.
 * RCFGBuilder took 324.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB.
 * CodeCheck took 57713.85 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 309.9 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -243.8 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB.
 * Witness Printer took 50.70 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...