./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_clnt_3.cil-2.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version cad46833
Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_clnt_3.cil-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2373f3a3f8dbd9f18e573cbc80f9fee8c78900dc
..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 0.1.24-cad4683
[2019-10-22 08:58:50,031 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-22 08:58:50,033 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-22 08:58:50,046 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-22 08:58:50,046 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-22 08:58:50,047 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-22 08:58:50,048 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-22 08:58:50,049 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-22 08:58:50,050 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-22 08:58:50,051 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-22 08:58:50,052 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-22 08:58:50,053 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-22 08:58:50,053 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-22 08:58:50,053 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-22 08:58:50,054 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-22 08:58:50,055 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-22 08:58:50,056 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-22 08:58:50,056 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-22 08:58:50,057 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-22 08:58:50,060 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-22 08:58:50,062 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-22 08:58:50,063 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-22 08:58:50,064 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-22 08:58:50,065 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-22 08:58:50,067 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-22 08:58:50,067 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-22 08:58:50,067 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-22 08:58:50,068 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-22 08:58:50,068 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-22 08:58:50,069 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-22 08:58:50,071 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-22 08:58:50,072 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-22 08:58:50,073 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-22 08:58:50,075 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-22 08:58:50,076 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-22 08:58:50,076 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-22 08:58:50,077 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-22 08:58:50,077 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-22 08:58:50,077 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-22 08:58:50,077 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-22 08:58:50,078 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-22 08:58:50,083 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-22 08:58:50,097 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-22 08:58:50,097 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-22 08:58:50,098 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-22 08:58:50,098 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-22 08:58:50,098 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-22 08:58:50,099 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-22 08:58:50,099 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-22 08:58:50,100 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-22 08:58:50,100 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-22 08:58:50,101 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-22 08:58:50,101 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-22 08:58:50,102 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-22 08:58:50,102 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-22 08:58:50,102 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2373f3a3f8dbd9f18e573cbc80f9fee8c78900dc
[2019-10-22 08:58:50,124 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-22 08:58:50,134 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-22 08:58:50,136 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-22 08:58:50,138 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-22 08:58:50,138 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-22 08:58:50,138 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/../../sv-benchmarks/c/ssh-simplified/s3_clnt_3.cil-2.c
[2019-10-22 08:58:50,188 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/data/8743c0db9/f935b4b77af6416e9b7f2f0fbd4b0604/FLAGff34c1404
[2019-10-22 08:58:50,597 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-22 08:58:50,598 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/sv-benchmarks/c/ssh-simplified/s3_clnt_3.cil-2.c
[2019-10-22 08:58:50,608 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/data/8743c0db9/f935b4b77af6416e9b7f2f0fbd4b0604/FLAGff34c1404
[2019-10-22 08:58:50,971 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/data/8743c0db9/f935b4b77af6416e9b7f2f0fbd4b0604
[2019-10-22 08:58:50,973 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-22 08:58:50,974 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2019-10-22 08:58:50,975 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-22 08:58:50,975 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-22 08:58:50,978 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-22 08:58:50,979 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:50" (1/1) ...
[2019-10-22 08:58:50,981 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe26a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:50, skipping insertion in model container
[2019-10-22 08:58:50,981 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:50" (1/1) ...
[2019-10-22 08:58:50,988 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-22 08:58:51,027 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-22 08:58:51,286 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-22 08:58:51,289 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-22 08:58:51,340 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-22 08:58:51,353 INFO  L192         MainTranslator]: Completed translation
[2019-10-22 08:58:51,353 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51 WrapperNode
[2019-10-22 08:58:51,353 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-22 08:58:51,354 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-10-22 08:58:51,354 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-10-22 08:58:51,354 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2019-10-22 08:58:51,361 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,377 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,436 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-10-22 08:58:51,437 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-22 08:58:51,437 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-22 08:58:51,437 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-22 08:58:51,446 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,446 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,448 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,455 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,466 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,479 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,492 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
[2019-10-22 08:58:51,495 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-22 08:58:51,495 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-22 08:58:51,496 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-22 08:58:51,496 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-22 08:58:51,500 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000
[2019-10-22 08:58:51,560 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-22 08:58:51,561 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-22 08:58:51,697 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-22 08:58:52,355 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false;
[2019-10-22 08:58:52,357 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false;
[2019-10-22 08:58:52,358 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-22 08:58:52,359 INFO  L284             CfgBuilder]: Removed 7 assume(true) statements.
[2019-10-22 08:58:52,360 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:52 BoogieIcfgContainer
[2019-10-22 08:58:52,360 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-22 08:58:52,360 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-22 08:58:52,361 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-22 08:58:52,363 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-22 08:58:52,364 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:50" (1/3) ...
[2019-10-22 08:58:52,364 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78460323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:52, skipping insertion in model container
[2019-10-22 08:58:52,365 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:51" (2/3) ...
[2019-10-22 08:58:52,365 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78460323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:52, skipping insertion in model container
[2019-10-22 08:58:52,365 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:52" (3/3) ...
[2019-10-22 08:58:52,366 INFO  L109   eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c
[2019-10-22 08:58:52,373 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-22 08:58:52,379 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-22 08:58:52,390 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-22 08:58:52,413 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-22 08:58:52,413 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-22 08:58:52,413 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-22 08:58:52,413 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-22 08:58:52,413 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-22 08:58:52,413 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-22 08:58:52,414 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-22 08:58:52,414 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-22 08:58:52,430 INFO  L276                IsEmpty]: Start isEmpty. Operand 127 states.
[2019-10-22 08:58:52,436 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2019-10-22 08:58:52,436 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:52,437 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:52,439 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:52,445 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:52,445 INFO  L82        PathProgramCache]: Analyzing trace with hash -1449576961, now seen corresponding path program 1 times
[2019-10-22 08:58:52,453 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:52,453 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954727645]
[2019-10-22 08:58:52,453 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:52,454 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:52,454 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:52,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:52,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-22 08:58:52,608 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954727645]
[2019-10-22 08:58:52,608 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:52,609 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-22 08:58:52,609 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148142123]
[2019-10-22 08:58:52,613 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:52,613 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:52,623 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:52,623 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:52,625 INFO  L87              Difference]: Start difference. First operand 127 states. Second operand 3 states.
[2019-10-22 08:58:52,811 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:52,811 INFO  L93              Difference]: Finished difference Result 251 states and 426 transitions.
[2019-10-22 08:58:52,812 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:52,813 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 23
[2019-10-22 08:58:52,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:52,822 INFO  L225             Difference]: With dead ends: 251
[2019-10-22 08:58:52,822 INFO  L226             Difference]: Without dead ends: 114
[2019-10-22 08:58:52,825 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:52,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2019-10-22 08:58:52,860 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114.
[2019-10-22 08:58:52,861 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 114 states.
[2019-10-22 08:58:52,863 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions.
[2019-10-22 08:58:52,864 INFO  L78                 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 23
[2019-10-22 08:58:52,865 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:52,865 INFO  L462      AbstractCegarLoop]: Abstraction has 114 states and 171 transitions.
[2019-10-22 08:58:52,865 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:52,865 INFO  L276                IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions.
[2019-10-22 08:58:52,867 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2019-10-22 08:58:52,867 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:52,867 INFO  L380         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:52,867 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:52,867 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:52,868 INFO  L82        PathProgramCache]: Analyzing trace with hash 1395170557, now seen corresponding path program 1 times
[2019-10-22 08:58:52,868 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:52,868 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808720160]
[2019-10-22 08:58:52,868 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:52,868 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:52,868 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:52,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:52,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-22 08:58:52,927 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808720160]
[2019-10-22 08:58:52,927 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:52,928 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:52,928 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558891255]
[2019-10-22 08:58:52,929 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:52,929 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:52,929 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:52,930 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:52,930 INFO  L87              Difference]: Start difference. First operand 114 states and 171 transitions. Second operand 3 states.
[2019-10-22 08:58:53,074 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:53,074 INFO  L93              Difference]: Finished difference Result 237 states and 359 transitions.
[2019-10-22 08:58:53,075 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:53,075 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 36
[2019-10-22 08:58:53,075 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:53,076 INFO  L225             Difference]: With dead ends: 237
[2019-10-22 08:58:53,076 INFO  L226             Difference]: Without dead ends: 132
[2019-10-22 08:58:53,077 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,078 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132 states.
[2019-10-22 08:58:53,085 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129.
[2019-10-22 08:58:53,085 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 129 states.
[2019-10-22 08:58:53,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 191 transitions.
[2019-10-22 08:58:53,086 INFO  L78                 Accepts]: Start accepts. Automaton has 129 states and 191 transitions. Word has length 36
[2019-10-22 08:58:53,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:53,086 INFO  L462      AbstractCegarLoop]: Abstraction has 129 states and 191 transitions.
[2019-10-22 08:58:53,086 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:53,086 INFO  L276                IsEmpty]: Start isEmpty. Operand 129 states and 191 transitions.
[2019-10-22 08:58:53,087 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2019-10-22 08:58:53,087 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:53,087 INFO  L380         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:53,088 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:53,088 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:53,088 INFO  L82        PathProgramCache]: Analyzing trace with hash -462623258, now seen corresponding path program 1 times
[2019-10-22 08:58:53,088 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:53,088 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94106805]
[2019-10-22 08:58:53,089 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,089 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,089 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:53,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:53,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2019-10-22 08:58:53,151 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94106805]
[2019-10-22 08:58:53,152 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:53,152 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:53,152 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076094387]
[2019-10-22 08:58:53,152 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:53,153 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:53,153 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:53,153 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,153 INFO  L87              Difference]: Start difference. First operand 129 states and 191 transitions. Second operand 3 states.
[2019-10-22 08:58:53,277 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:53,278 INFO  L93              Difference]: Finished difference Result 271 states and 407 transitions.
[2019-10-22 08:58:53,278 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:53,278 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 50
[2019-10-22 08:58:53,278 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:53,279 INFO  L225             Difference]: With dead ends: 271
[2019-10-22 08:58:53,280 INFO  L226             Difference]: Without dead ends: 151
[2019-10-22 08:58:53,280 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,281 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 151 states.
[2019-10-22 08:58:53,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 146.
[2019-10-22 08:58:53,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 146 states.
[2019-10-22 08:58:53,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions.
[2019-10-22 08:58:53,289 INFO  L78                 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 50
[2019-10-22 08:58:53,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:53,290 INFO  L462      AbstractCegarLoop]: Abstraction has 146 states and 213 transitions.
[2019-10-22 08:58:53,290 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:53,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions.
[2019-10-22 08:58:53,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2019-10-22 08:58:53,291 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:53,292 INFO  L380         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:53,292 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:53,292 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:53,292 INFO  L82        PathProgramCache]: Analyzing trace with hash -1174891697, now seen corresponding path program 1 times
[2019-10-22 08:58:53,293 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:53,293 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607584012]
[2019-10-22 08:58:53,293 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,293 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,293 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:53,318 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:53,398 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2019-10-22 08:58:53,400 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607584012]
[2019-10-22 08:58:53,400 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:53,400 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:53,401 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42207398]
[2019-10-22 08:58:53,401 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:53,401 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:53,401 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:53,402 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,402 INFO  L87              Difference]: Start difference. First operand 146 states and 213 transitions. Second operand 3 states.
[2019-10-22 08:58:53,588 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:53,588 INFO  L93              Difference]: Finished difference Result 334 states and 502 transitions.
[2019-10-22 08:58:53,589 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:53,589 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 67
[2019-10-22 08:58:53,589 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:53,590 INFO  L225             Difference]: With dead ends: 334
[2019-10-22 08:58:53,591 INFO  L226             Difference]: Without dead ends: 196
[2019-10-22 08:58:53,591 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,592 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2019-10-22 08:58:53,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 187.
[2019-10-22 08:58:53,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 187 states.
[2019-10-22 08:58:53,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 263 transitions.
[2019-10-22 08:58:53,607 INFO  L78                 Accepts]: Start accepts. Automaton has 187 states and 263 transitions. Word has length 67
[2019-10-22 08:58:53,608 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:53,608 INFO  L462      AbstractCegarLoop]: Abstraction has 187 states and 263 transitions.
[2019-10-22 08:58:53,608 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:53,608 INFO  L276                IsEmpty]: Start isEmpty. Operand 187 states and 263 transitions.
[2019-10-22 08:58:53,609 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2019-10-22 08:58:53,610 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:53,610 INFO  L380         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:53,610 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:53,610 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:53,612 INFO  L82        PathProgramCache]: Analyzing trace with hash 1314637265, now seen corresponding path program 1 times
[2019-10-22 08:58:53,612 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:53,612 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955606960]
[2019-10-22 08:58:53,612 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,613 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,613 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:53,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:53,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2019-10-22 08:58:53,702 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955606960]
[2019-10-22 08:58:53,702 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:53,703 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:53,703 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223033316]
[2019-10-22 08:58:53,704 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:53,704 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:53,704 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:53,704 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,704 INFO  L87              Difference]: Start difference. First operand 187 states and 263 transitions. Second operand 3 states.
[2019-10-22 08:58:53,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:53,848 INFO  L93              Difference]: Finished difference Result 389 states and 554 transitions.
[2019-10-22 08:58:53,848 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:53,849 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 67
[2019-10-22 08:58:53,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:53,850 INFO  L225             Difference]: With dead ends: 389
[2019-10-22 08:58:53,850 INFO  L226             Difference]: Without dead ends: 211
[2019-10-22 08:58:53,851 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2019-10-22 08:58:53,867 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 206.
[2019-10-22 08:58:53,870 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 206 states.
[2019-10-22 08:58:53,874 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 287 transitions.
[2019-10-22 08:58:53,874 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 287 transitions. Word has length 67
[2019-10-22 08:58:53,874 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:53,874 INFO  L462      AbstractCegarLoop]: Abstraction has 206 states and 287 transitions.
[2019-10-22 08:58:53,874 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:53,875 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 287 transitions.
[2019-10-22 08:58:53,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2019-10-22 08:58:53,880 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:53,880 INFO  L380         BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:53,881 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:53,881 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:53,881 INFO  L82        PathProgramCache]: Analyzing trace with hash -1231866158, now seen corresponding path program 1 times
[2019-10-22 08:58:53,881 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:53,882 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874271839]
[2019-10-22 08:58:53,882 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,882 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:53,882 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:53,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:53,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2019-10-22 08:58:53,945 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874271839]
[2019-10-22 08:58:53,945 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:53,945 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:53,945 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022837303]
[2019-10-22 08:58:53,946 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:53,946 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:53,946 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:53,946 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:53,946 INFO  L87              Difference]: Start difference. First operand 206 states and 287 transitions. Second operand 3 states.
[2019-10-22 08:58:54,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:54,081 INFO  L93              Difference]: Finished difference Result 427 states and 603 transitions.
[2019-10-22 08:58:54,081 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:54,081 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 84
[2019-10-22 08:58:54,082 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:54,083 INFO  L225             Difference]: With dead ends: 427
[2019-10-22 08:58:54,083 INFO  L226             Difference]: Without dead ends: 230
[2019-10-22 08:58:54,084 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:54,084 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2019-10-22 08:58:54,095 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 227.
[2019-10-22 08:58:54,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 227 states.
[2019-10-22 08:58:54,096 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 313 transitions.
[2019-10-22 08:58:54,096 INFO  L78                 Accepts]: Start accepts. Automaton has 227 states and 313 transitions. Word has length 84
[2019-10-22 08:58:54,096 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:54,096 INFO  L462      AbstractCegarLoop]: Abstraction has 227 states and 313 transitions.
[2019-10-22 08:58:54,096 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:54,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 227 states and 313 transitions.
[2019-10-22 08:58:54,098 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2019-10-22 08:58:54,098 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:54,098 INFO  L380         BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:54,098 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:54,098 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:54,108 INFO  L82        PathProgramCache]: Analyzing trace with hash 266431114, now seen corresponding path program 1 times
[2019-10-22 08:58:54,108 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:54,108 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539334030]
[2019-10-22 08:58:54,108 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:54,109 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:54,109 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:54,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-22 08:58:54,180 INFO  L134       CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2019-10-22 08:58:54,180 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539334030]
[2019-10-22 08:58:54,181 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-22 08:58:54,181 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-22 08:58:54,181 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043798727]
[2019-10-22 08:58:54,181 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-22 08:58:54,181 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-22 08:58:54,181 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-22 08:58:54,182 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:54,182 INFO  L87              Difference]: Start difference. First operand 227 states and 313 transitions. Second operand 3 states.
[2019-10-22 08:58:54,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-22 08:58:54,219 INFO  L93              Difference]: Finished difference Result 661 states and 912 transitions.
[2019-10-22 08:58:54,220 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-10-22 08:58:54,220 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 104
[2019-10-22 08:58:54,220 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-22 08:58:54,222 INFO  L225             Difference]: With dead ends: 661
[2019-10-22 08:58:54,222 INFO  L226             Difference]: Without dead ends: 443
[2019-10-22 08:58:54,223 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-22 08:58:54,223 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 443 states.
[2019-10-22 08:58:54,234 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443.
[2019-10-22 08:58:54,234 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 443 states.
[2019-10-22 08:58:54,240 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 609 transitions.
[2019-10-22 08:58:54,240 INFO  L78                 Accepts]: Start accepts. Automaton has 443 states and 609 transitions. Word has length 104
[2019-10-22 08:58:54,240 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-22 08:58:54,240 INFO  L462      AbstractCegarLoop]: Abstraction has 443 states and 609 transitions.
[2019-10-22 08:58:54,240 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-22 08:58:54,240 INFO  L276                IsEmpty]: Start isEmpty. Operand 443 states and 609 transitions.
[2019-10-22 08:58:54,242 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2019-10-22 08:58:54,242 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-22 08:58:54,242 INFO  L380         BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-22 08:58:54,242 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-22 08:58:54,242 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-22 08:58:54,242 INFO  L82        PathProgramCache]: Analyzing trace with hash -1706663820, now seen corresponding path program 1 times
[2019-10-22 08:58:54,246 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-22 08:58:54,246 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813809136]
[2019-10-22 08:58:54,246 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:54,246 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-22 08:58:54,246 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-22 08:58:54,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-10-22 08:58:54,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-10-22 08:58:54,412 INFO  L168   tionRefinementEngine]: Strategy CAMEL found a feasible trace
[2019-10-22 08:58:54,412 INFO  L445         BasicCegarLoop]: Counterexample might be feasible
[2019-10-22 08:58:54,489 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:54 BoogieIcfgContainer
[2019-10-22 08:58:54,490 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-22 08:58:54,492 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2019-10-22 08:58:54,492 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2019-10-22 08:58:54,493 INFO  L275        PluginConnector]: Witness Printer initialized
[2019-10-22 08:58:54,493 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:52" (3/4) ...
[2019-10-22 08:58:54,496 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2019-10-22 08:58:54,615 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_36d393e4-94f6-4d5c-b0e8-792dc8cf9ccb/bin/uautomizer/witness.graphml
[2019-10-22 08:58:54,618 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2019-10-22 08:58:54,620 INFO  L168              Benchmark]: Toolchain (without parser) took 3645.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.7 MB in the beginning and 1.0 GB in the end (delta: -86.6 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,620 INFO  L168              Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,621 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 378.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,621 INFO  L168              Benchmark]: Boogie Procedure Inliner took 83.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,621 INFO  L168              Benchmark]: Boogie Preprocessor took 58.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,621 INFO  L168              Benchmark]: RCFGBuilder took 864.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,622 INFO  L168              Benchmark]: TraceAbstraction took 2130.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,622 INFO  L168              Benchmark]: Witness Printer took 126.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB.
[2019-10-22 08:58:54,624 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB.
 * CACSL2BoogieTranslator took 378.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB.
 * Boogie Procedure Inliner took 83.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB.
 * Boogie Preprocessor took 58.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB.
 * RCFGBuilder took 864.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB.
 * TraceAbstraction took 2130.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB.
 * Witness Printer took 126.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 574]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L579]              int s ;
[L583]              s = 12292
[L13]               int s__info_callback = __VERIFIER_nondet_int() ;
[L14]               int s__in_handshake = __VERIFIER_nondet_int() ;
[L15]               int s__state ;
[L16]               int s__new_session ;
[L17]               int s__server ;
[L18]               int s__version = __VERIFIER_nondet_int() ;
[L19]               int s__type ;
[L20]               int s__init_num ;
[L21]               int s__bbio = __VERIFIER_nondet_int() ;
[L22]               int s__wbio = __VERIFIER_nondet_int() ;
[L23]               int s__hit = __VERIFIER_nondet_int() ;
[L24]               int s__rwstate ;
[L25]               int s__init_buf___0 = __VERIFIER_nondet_int() ;
[L26]               int s__debug = __VERIFIER_nondet_int() ;
[L27]               int s__shutdown ;
[L28]               int s__ctx__info_callback = __VERIFIER_nondet_int() ;
[L29]               int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ;
[L30]               int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ;
[L31]               int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ;
[L32]               int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ;
[L33]               int s__s3__change_cipher_spec ;
[L34]               int s__s3__flags = __VERIFIER_nondet_int() ;
[L35]               int s__s3__delay_buf_pop_ret ;
[L36]               int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ;
[L37]               int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ;
[L38]               int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ;
[L39]               int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ;
[L40]               int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ;
[L41]               int s__s3__tmp__next_state___0 ;
[L42]               int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ;
[L43]               int s__session__cipher ;
[L44]               int s__session__compress_meth ;
[L45]               int buf ;
[L46]               unsigned long tmp ;
[L47]               unsigned long l ;
[L48]               int num1 = __VERIFIER_nondet_int() ;
[L49]               int cb ;
[L50]               int ret ;
[L51]               int new_state ;
[L52]               int state ;
[L53]               int skip ;
[L54]               int tmp___0 ;
[L55]               int tmp___1 = __VERIFIER_nondet_int() ;
[L56]               int tmp___2 = __VERIFIER_nondet_int() ;
[L57]               int tmp___3 = __VERIFIER_nondet_int() ;
[L58]               int tmp___4 = __VERIFIER_nondet_int() ;
[L59]               int tmp___5 = __VERIFIER_nondet_int() ;
[L60]               int tmp___6 = __VERIFIER_nondet_int() ;
[L61]               int tmp___7 = __VERIFIER_nondet_int() ;
[L62]               int tmp___8 = __VERIFIER_nondet_int() ;
[L63]               int tmp___9 = __VERIFIER_nondet_int() ;
[L64]               int blastFlag ;
[L65]               int __cil_tmp55 ;
[L66]               void *__cil_tmp56 ;
[L67]               unsigned long __cil_tmp57 ;
[L68]               unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ;
[L69]               void *__cil_tmp59 ;
[L70]               unsigned long __cil_tmp60 ;
[L71]               unsigned long __cil_tmp61 ;
[L72]               unsigned long __cil_tmp62 ;
[L73]               unsigned long __cil_tmp63 ;
[L74]               unsigned long __cil_tmp64 ;
[L75]               long __cil_tmp65 = __VERIFIER_nondet_long() ;
[L76]               long __cil_tmp66 ;
[L77]               long __cil_tmp67 ;
[L78]               long __cil_tmp68 ;
[L79]               long __cil_tmp69 ;
[L80]               long __cil_tmp70 = __VERIFIER_nondet_long() ;
[L81]               long __cil_tmp71 ;
[L82]               long __cil_tmp72 ;
[L83]               long __cil_tmp73 ;
[L84]               long __cil_tmp74 ;
[L88]               s__state = initial_state
[L89]               blastFlag = 0
[L90]               tmp = __VERIFIER_nondet_int()
[L91]               cb = 0
[L92]               ret = -1
[L93]               skip = 0
[L94]               tmp___0 = 0
[L95]   COND TRUE   s__info_callback != 0
[L96]               cb = s__info_callback
[L102]              s__in_handshake ++
[L103]  COND FALSE  !(tmp___1 + 12288)
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND TRUE   s__state == 12292
[L214]              s__new_session = 1
[L215]              s__state = 4096
[L216]              s__ctx__stats__sess_connect_renegotiate ++
[L221]              s__server = 0
[L222]  COND TRUE   cb != 0
[L226]              __cil_tmp55 = s__version + 65280
[L227]  COND FALSE  !(__cil_tmp55 != 768)
[L232]              s__type = 4096
[L234]              __cil_tmp56 = (void *)0
[L235]              __cil_tmp57 = (unsigned long )__cil_tmp56
[L236]              __cil_tmp58 = (unsigned long )s__init_buf___0
[L237]  COND FALSE  !(__cil_tmp58 == __cil_tmp57)
[L255]  COND FALSE  !(! tmp___4)
[L259]  COND FALSE  !(! tmp___5)
[L263]              s__state = 4368
[L264]              s__ctx__stats__sess_connect ++
[L265]              s__init_num = 0
[L546]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L563]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 4096)
[L121]  COND FALSE  !(s__state == 20480)
[L124]  COND FALSE  !(s__state == 4099)
[L127]  COND TRUE   s__state == 4368
[L269]              s__shutdown = 0
[L270]              ret = __VERIFIER_nondet_int()
[L271]  COND TRUE   blastFlag == 0
[L272]              blastFlag = 1
[L274]  COND FALSE  !(ret <= 0)
[L277]              s__state = 4384
[L278]              s__init_num = 0
[L280]              __cil_tmp62 = (unsigned long )s__wbio
[L281]              __cil_tmp63 = (unsigned long )s__bbio
[L282]  COND TRUE   __cil_tmp63 != __cil_tmp62
[L546]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L563]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 4096)
[L121]  COND FALSE  !(s__state == 20480)
[L124]  COND FALSE  !(s__state == 4099)
[L127]  COND FALSE  !(s__state == 4368)
[L130]  COND FALSE  !(s__state == 4369)
[L133]  COND TRUE   s__state == 4384
[L289]              ret = __VERIFIER_nondet_int()
[L290]  COND TRUE   blastFlag == 1
[L291]              blastFlag = 2
[L297]  COND FALSE  !(ret <= 0)
[L300]  COND FALSE  !(\read(s__hit))
[L303]              s__state = 4400
[L305]              s__init_num = 0
[L546]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L563]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 4096)
[L121]  COND FALSE  !(s__state == 20480)
[L124]  COND FALSE  !(s__state == 4099)
[L127]  COND FALSE  !(s__state == 4368)
[L130]  COND FALSE  !(s__state == 4369)
[L133]  COND FALSE  !(s__state == 4384)
[L136]  COND FALSE  !(s__state == 4385)
[L139]  COND TRUE   s__state == 4400
[L310]              __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms
[L311]  COND FALSE  !(__cil_tmp64 + 256UL)
[L314]              ret = __VERIFIER_nondet_int()
[L315]  COND TRUE   blastFlag == 2
[L316]              blastFlag = 3
[L318]  COND FALSE  !(ret <= 0)
[L323]              s__state = 4416
[L324]              s__init_num = 0
[L546]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L563]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 4096)
[L121]  COND FALSE  !(s__state == 20480)
[L124]  COND FALSE  !(s__state == 4099)
[L127]  COND FALSE  !(s__state == 4368)
[L130]  COND FALSE  !(s__state == 4369)
[L133]  COND FALSE  !(s__state == 4384)
[L136]  COND FALSE  !(s__state == 4385)
[L139]  COND FALSE  !(s__state == 4400)
[L142]  COND FALSE  !(s__state == 4401)
[L145]  COND TRUE   s__state == 4416
[L328]              ret = __VERIFIER_nondet_int()
[L329]  COND TRUE   blastFlag == 3
[L330]              blastFlag = 4
[L332]  COND FALSE  !(ret <= 0)
[L335]              s__state = 4432
[L336]              s__init_num = 0
[L337]  COND FALSE  !(! tmp___6)
[L546]  COND FALSE  !(! s__s3__tmp__reuse_message)
[L563]              skip = 0
[L109]  COND TRUE   1
[L111]              state = s__state
[L112]  COND FALSE  !(s__state == 12292)
[L115]  COND FALSE  !(s__state == 16384)
[L118]  COND FALSE  !(s__state == 4096)
[L121]  COND FALSE  !(s__state == 20480)
[L124]  COND FALSE  !(s__state == 4099)
[L127]  COND FALSE  !(s__state == 4368)
[L130]  COND FALSE  !(s__state == 4369)
[L133]  COND FALSE  !(s__state == 4384)
[L136]  COND FALSE  !(s__state == 4385)
[L139]  COND FALSE  !(s__state == 4400)
[L142]  COND FALSE  !(s__state == 4401)
[L145]  COND FALSE  !(s__state == 4416)
[L148]  COND FALSE  !(s__state == 4417)
[L151]  COND TRUE   s__state == 4432
[L344]              ret = __VERIFIER_nondet_int()
[L345]  COND TRUE   blastFlag == 4
[L574]              __VERIFIER_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 127 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1223 SDtfs, 255 SDslu, 651 SDs, 0 SdLazy, 617 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=443occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 537 NumberOfCodeBlocks, 537 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 424 ConstructedInterpolants, 0 QuantifiedInterpolants, 47530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 316/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...