./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label15_false-unreach-call.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version aa418289
Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label15_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/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 4e82f49b5c4c28443d6988ba6a1afc59069f74cd
.........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished with exit code -9
Writing output log to file Ultimate.log
Result:
UNKNOWN
--- Real Ultimate output ---
This is Ultimate 0.1.23-aa41828
[2018-11-23 04:30:36,933 INFO  L170        SettingsManager]: Resetting all preferences to default values...
[2018-11-23 04:30:36,934 INFO  L174        SettingsManager]: Resetting UltimateCore preferences to default values
[2018-11-23 04:30:36,941 INFO  L177        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-11-23 04:30:36,942 INFO  L174        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-11-23 04:30:36,942 INFO  L174        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-11-23 04:30:36,943 INFO  L174        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-11-23 04:30:36,944 INFO  L174        SettingsManager]: Resetting LassoRanker preferences to default values
[2018-11-23 04:30:36,945 INFO  L174        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2018-11-23 04:30:36,946 INFO  L174        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2018-11-23 04:30:36,946 INFO  L177        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-11-23 04:30:36,947 INFO  L174        SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-11-23 04:30:36,947 INFO  L174        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-11-23 04:30:36,948 INFO  L174        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-11-23 04:30:36,948 INFO  L174        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-11-23 04:30:36,949 INFO  L174        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-11-23 04:30:36,949 INFO  L174        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-11-23 04:30:36,950 INFO  L174        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-11-23 04:30:36,951 INFO  L174        SettingsManager]: Resetting CodeCheck preferences to default values
[2018-11-23 04:30:36,952 INFO  L174        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-11-23 04:30:36,952 INFO  L174        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-11-23 04:30:36,953 INFO  L174        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-11-23 04:30:36,954 INFO  L177        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-11-23 04:30:36,954 INFO  L177        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-11-23 04:30:36,954 INFO  L174        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-11-23 04:30:36,955 INFO  L174        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-11-23 04:30:36,955 INFO  L174        SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-11-23 04:30:36,956 INFO  L174        SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-11-23 04:30:36,956 INFO  L174        SettingsManager]: Resetting Witness Printer preferences to default values
[2018-11-23 04:30:36,957 INFO  L177        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-11-23 04:30:36,957 INFO  L174        SettingsManager]: Resetting CDTParser preferences to default values
[2018-11-23 04:30:36,958 INFO  L177        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2018-11-23 04:30:36,958 INFO  L177        SettingsManager]: ReqParser provides no preferences, ignoring...
[2018-11-23 04:30:36,958 INFO  L174        SettingsManager]: Resetting SmtParser preferences to default values
[2018-11-23 04:30:36,959 INFO  L174        SettingsManager]: Resetting Witness Parser preferences to default values
[2018-11-23 04:30:36,959 INFO  L181        SettingsManager]: Finished resetting all preferences to default values...
[2018-11-23 04:30:36,960 INFO  L98         SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2018-11-23 04:30:36,967 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-11-23 04:30:36,967 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-11-23 04:30:36,968 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-11-23 04:30:36,968 INFO  L133        SettingsManager]:  * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS
[2018-11-23 04:30:36,969 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-11-23 04:30:36,969 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-11-23 04:30:36,969 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-11-23 04:30:36,969 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-11-23 04:30:36,969 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-11-23 04:30:36,969 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-11-23 04:30:36,969 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Use constant arrays=true
[2018-11-23 04:30:36,970 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-11-23 04:30:36,971 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-11-23 04:30:36,971 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-11-23 04:30:36,971 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-11-23 04:30:36,972 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-11-23 04:30:36,972 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-11-23 04:30:36,972 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_98988351-968c-46f6-b022-4d274d696043/bin-2019/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 -> 4e82f49b5c4c28443d6988ba6a1afc59069f74cd
[2018-11-23 04:30:36,996 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-11-23 04:30:37,005 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-11-23 04:30:37,007 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-11-23 04:30:37,008 INFO  L271        PluginConnector]: Initializing CDTParser...
[2018-11-23 04:30:37,009 INFO  L276        PluginConnector]: CDTParser initialized
[2018-11-23 04:30:37,009 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/../../sv-benchmarks/c/eca-rers2012/Problem07_label15_false-unreach-call.c
[2018-11-23 04:30:37,054 INFO  L221              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/data/80e165f01/14f6a0761db64cc486d0f2554322e95c/FLAG23f578a50
[2018-11-23 04:30:38,245 INFO  L307              CDTParser]: Found 1 translation units.
[2018-11-23 04:30:38,246 INFO  L161              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/sv-benchmarks/c/eca-rers2012/Problem07_label15_false-unreach-call.c
[2018-11-23 04:30:38,350 INFO  L355              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/data/80e165f01/14f6a0761db64cc486d0f2554322e95c/FLAG23f578a50
[2018-11-23 04:30:38,527 INFO  L363              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/data/80e165f01/14f6a0761db64cc486d0f2554322e95c
[2018-11-23 04:30:38,529 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-11-23 04:30:38,530 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2018-11-23 04:30:38,530 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2018-11-23 04:30:38,530 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2018-11-23 04:30:38,532 INFO  L276        PluginConnector]: CACSL2BoogieTranslator initialized
[2018-11-23 04:30:38,533 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:30:38" (1/1) ...
[2018-11-23 04:30:38,534 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbeed0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:38, skipping insertion in model container
[2018-11-23 04:30:38,534 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:30:38" (1/1) ...
[2018-11-23 04:30:38,540 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2018-11-23 04:30:39,151 INFO  L176         MainTranslator]: Built tables and reachable declarations
[2018-11-23 04:30:49,029 INFO  L201          PostProcessor]: Analyzing one entry point: main
[2018-11-23 04:30:49,033 INFO  L191         MainTranslator]: Completed pre-run
[2018-11-23 04:30:55,861 INFO  L201          PostProcessor]: Analyzing one entry point: main
[2018-11-23 04:30:56,576 INFO  L195         MainTranslator]: Completed translation
[2018-11-23 04:30:56,577 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56 WrapperNode
[2018-11-23 04:30:56,577 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2018-11-23 04:30:56,577 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-11-23 04:30:56,577 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-11-23 04:30:56,577 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-11-23 04:30:56,586 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:56,892 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:56,912 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-11-23 04:30:56,912 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-11-23 04:30:56,912 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-11-23 04:30:56,912 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-11-23 04:30:56,922 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:56,922 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:57,131 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:57,131 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:58,077 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:58,211 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:58,428 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
[2018-11-23 04:30:58,688 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-11-23 04:30:58,689 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-11-23 04:30:58,689 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-11-23 04:30:58,689 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-11-23 04:30:58,690 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/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
[2018-11-23 04:30:58,740 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2018-11-23 04:30:58,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2018-11-23 04:30:58,741 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2018-11-23 04:30:58,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2018-11-23 04:30:58,741 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2018-11-23 04:30:58,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2018-11-23 04:30:58,741 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2018-11-23 04:30:58,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2018-11-23 04:30:58,742 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2018-11-23 04:30:58,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2018-11-23 04:30:58,742 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2018-11-23 04:30:58,742 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2018-11-23 04:30:58,742 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2018-11-23 04:30:58,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2018-11-23 04:30:58,743 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2018-11-23 04:30:58,743 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2018-11-23 04:30:58,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2018-11-23 04:30:58,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2018-11-23 04:30:58,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2018-11-23 04:30:58,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2018-11-23 04:30:58,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2018-11-23 04:30:58,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2018-11-23 04:30:58,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2018-11-23 04:30:58,744 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2018-11-23 04:30:58,744 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2018-11-23 04:30:58,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2018-11-23 04:30:58,745 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2018-11-23 04:30:58,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2018-11-23 04:30:58,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2018-11-23 04:30:58,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2018-11-23 04:30:58,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2018-11-23 04:30:58,745 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2018-11-23 04:30:58,745 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2018-11-23 04:30:58,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2018-11-23 04:30:58,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2018-11-23 04:30:58,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2018-11-23 04:30:58,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2018-11-23 04:30:58,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2018-11-23 04:30:58,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2018-11-23 04:30:58,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2018-11-23 04:30:58,746 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2018-11-23 04:30:58,746 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2018-11-23 04:30:58,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2018-11-23 04:30:58,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2018-11-23 04:30:58,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2018-11-23 04:30:58,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2018-11-23 04:30:58,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2018-11-23 04:30:58,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2018-11-23 04:30:58,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2018-11-23 04:30:58,747 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2018-11-23 04:30:58,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2018-11-23 04:30:58,748 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2018-11-23 04:30:58,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2018-11-23 04:30:58,748 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2018-11-23 04:30:58,748 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2018-11-23 04:30:58,748 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2018-11-23 04:30:58,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2018-11-23 04:30:58,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2018-11-23 04:30:58,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2018-11-23 04:30:58,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2018-11-23 04:30:58,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2018-11-23 04:30:58,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2018-11-23 04:30:58,751 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2018-11-23 04:30:58,751 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2018-11-23 04:30:58,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2018-11-23 04:30:58,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2018-11-23 04:30:58,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2018-11-23 04:30:58,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2018-11-23 04:30:58,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2018-11-23 04:30:58,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2018-11-23 04:30:58,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2018-11-23 04:30:58,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2018-11-23 04:30:58,752 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2018-11-23 04:30:58,752 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2018-11-23 04:30:58,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2018-11-23 04:30:58,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2018-11-23 04:30:58,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2018-11-23 04:30:58,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2018-11-23 04:30:58,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2018-11-23 04:30:58,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2018-11-23 04:30:58,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2018-11-23 04:30:58,753 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2018-11-23 04:30:58,753 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2018-11-23 04:30:58,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2018-11-23 04:30:58,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2018-11-23 04:30:58,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2018-11-23 04:30:58,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2018-11-23 04:30:58,754 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2018-11-23 04:30:58,754 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2018-11-23 04:30:58,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2018-11-23 04:30:58,755 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2018-11-23 04:30:58,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2018-11-23 04:30:58,755 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-11-23 04:30:58,755 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-11-23 04:31:21,479 INFO  L275             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-11-23 04:31:21,479 INFO  L280             CfgBuilder]: Removed 1 assue(true) statements.
[2018-11-23 04:31:21,479 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:31:21 BoogieIcfgContainer
[2018-11-23 04:31:21,480 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-11-23 04:31:21,480 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-11-23 04:31:21,480 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-11-23 04:31:21,482 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-11-23 04:31:21,482 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:30:38" (1/3) ...
[2018-11-23 04:31:21,483 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b32292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:31:21, skipping insertion in model container
[2018-11-23 04:31:21,483 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:30:56" (2/3) ...
[2018-11-23 04:31:21,483 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b32292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:31:21, skipping insertion in model container
[2018-11-23 04:31:21,483 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:31:21" (3/3) ...
[2018-11-23 04:31:21,484 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label15_false-unreach-call.c
[2018-11-23 04:31:21,490 INFO  L156   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-11-23 04:31:21,498 INFO  L168   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-11-23 04:31:21,508 INFO  L257      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2018-11-23 04:31:21,553 INFO  L133   ementStrategyFactory]: Using default assertion order modulation
[2018-11-23 04:31:21,553 INFO  L382      AbstractCegarLoop]: Interprodecural is true
[2018-11-23 04:31:21,554 INFO  L383      AbstractCegarLoop]: Hoare is true
[2018-11-23 04:31:21,554 INFO  L384      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-11-23 04:31:21,554 INFO  L385      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-11-23 04:31:21,554 INFO  L386      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-11-23 04:31:21,554 INFO  L387      AbstractCegarLoop]: Difference is false
[2018-11-23 04:31:21,554 INFO  L388      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-11-23 04:31:21,554 INFO  L393      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-11-23 04:31:21,630 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2018-11-23 04:31:22,077 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10207
[2018-11-23 04:31:22,078 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:31:22,081 INFO  L402         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, 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, 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, 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, 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, 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, 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, 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, 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[2018-11-23 04:31:22,084 INFO  L423      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:31:22,088 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:31:22,092 INFO  L82        PathProgramCache]: Analyzing trace with hash -227278078, now seen corresponding path program 1 times
[2018-11-23 04:31:22,094 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:31:22,095 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:31:22,129 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:31:22,129 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:31:22,129 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:31:23,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:32:28,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-23 04:32:28,430 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-23 04:32:28,430 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-11-23 04:32:28,440 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-11-23 04:32:28,449 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-11-23 04:32:28,450 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-23 04:32:28,452 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2018-11-23 04:32:51,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:32:51,698 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2018-11-23 04:32:51,699 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-11-23 04:32:51,699 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10206
[2018-11-23 04:32:51,712 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:32:51,774 INFO  L225             Difference]: With dead ends: 31264
[2018-11-23 04:32:51,775 INFO  L226             Difference]: Without dead ends: 20816
[2018-11-23 04:32:51,792 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 47 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-23 04:32:51,830 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20816 states.
[2018-11-23 04:32:52,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20816 to 20816.
[2018-11-23 04:32:52,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20816 states.
[2018-11-23 04:32:52,208 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20816 states to 20816 states and 36153 transitions.
[2018-11-23 04:32:52,210 INFO  L78                 Accepts]: Start accepts. Automaton has 20816 states and 36153 transitions. Word has length 10206
[2018-11-23 04:32:52,219 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-23 04:32:52,219 INFO  L480      AbstractCegarLoop]: Abstraction has 20816 states and 36153 transitions.
[2018-11-23 04:32:52,219 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-11-23 04:32:52,219 INFO  L276                IsEmpty]: Start isEmpty. Operand 20816 states and 36153 transitions.
[2018-11-23 04:32:52,923 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10215
[2018-11-23 04:32:52,923 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:32:52,926 INFO  L402         BasicCegarLoop]: trace histogram [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, 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, 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, 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, 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, 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, 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, 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, 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[2018-11-23 04:32:52,926 INFO  L423      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:32:52,927 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:32:52,930 INFO  L82        PathProgramCache]: Analyzing trace with hash 1347728054, now seen corresponding path program 1 times
[2018-11-23 04:32:52,931 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:32:52,931 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:32:52,934 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:32:52,934 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:32:52,934 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:32:53,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:33:56,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-23 04:33:56,316 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-23 04:33:56,317 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-11-23 04:33:56,325 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-11-23 04:33:56,325 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-11-23 04:33:56,325 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-23 04:33:56,325 INFO  L87              Difference]: Start difference. First operand 20816 states and 36153 transitions. Second operand 3 states.
[2018-11-23 04:34:22,476 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:34:22,477 INFO  L93              Difference]: Finished difference Result 62374 states and 109076 transitions.
[2018-11-23 04:34:22,477 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-11-23 04:34:22,477 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10214
[2018-11-23 04:34:22,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:34:22,545 INFO  L225             Difference]: With dead ends: 62374
[2018-11-23 04:34:22,545 INFO  L226             Difference]: Without dead ends: 41564
[2018-11-23 04:34:22,566 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 46 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2018-11-23 04:34:22,596 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41564 states.
[2018-11-23 04:34:22,923 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41564 to 41564.
[2018-11-23 04:34:22,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41564 states.
[2018-11-23 04:34:22,965 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41564 states to 41564 states and 71597 transitions.
[2018-11-23 04:34:22,966 INFO  L78                 Accepts]: Start accepts. Automaton has 41564 states and 71597 transitions. Word has length 10214
[2018-11-23 04:34:22,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-23 04:34:22,971 INFO  L480      AbstractCegarLoop]: Abstraction has 41564 states and 71597 transitions.
[2018-11-23 04:34:22,971 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-11-23 04:34:22,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 41564 states and 71597 transitions.
[2018-11-23 04:34:23,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10222
[2018-11-23 04:34:23,341 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:34:23,343 INFO  L402         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2018-11-23 04:34:23,343 INFO  L423      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:34:23,344 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:34:23,345 INFO  L82        PathProgramCache]: Analyzing trace with hash 639596700, now seen corresponding path program 1 times
[2018-11-23 04:34:23,346 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:34:23,346 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:34:23,347 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:34:23,347 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:34:23,347 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:34:23,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:34:46,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-23 04:34:46,192 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-11-23 04:34:46,193 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2018-11-23 04:34:46,196 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 6 states
[2018-11-23 04:34:46,196 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2018-11-23 04:34:46,197 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2018-11-23 04:34:46,197 INFO  L87              Difference]: Start difference. First operand 41564 states and 71597 transitions. Second operand 6 states.
[2018-11-23 04:35:23,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:35:23,983 INFO  L93              Difference]: Finished difference Result 127011 states and 222280 transitions.
[2018-11-23 04:35:23,983 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2018-11-23 04:35:23,983 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10221
[2018-11-23 04:35:23,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:35:24,109 INFO  L225             Difference]: With dead ends: 127011
[2018-11-23 04:35:24,109 INFO  L226             Difference]: Without dead ends: 85453
[2018-11-23 04:35:24,148 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2018-11-23 04:35:24,202 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85453 states.
[2018-11-23 04:35:24,896 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85453 to 84893.
[2018-11-23 04:35:24,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 84893 states.
[2018-11-23 04:35:24,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84893 states to 84893 states and 142905 transitions.
[2018-11-23 04:35:24,990 INFO  L78                 Accepts]: Start accepts. Automaton has 84893 states and 142905 transitions. Word has length 10221
[2018-11-23 04:35:24,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-23 04:35:24,991 INFO  L480      AbstractCegarLoop]: Abstraction has 84893 states and 142905 transitions.
[2018-11-23 04:35:24,991 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2018-11-23 04:35:24,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 84893 states and 142905 transitions.
[2018-11-23 04:35:25,383 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10230
[2018-11-23 04:35:25,384 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:35:25,386 INFO  L402         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2018-11-23 04:35:25,386 INFO  L423      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:35:25,386 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:35:25,388 INFO  L82        PathProgramCache]: Analyzing trace with hash -1652888984, now seen corresponding path program 1 times
[2018-11-23 04:35:25,388 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:35:25,388 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:35:25,389 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:35:25,389 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:35:25,389 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:35:25,784 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:35:48,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-11-23 04:35:48,601 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-23 04:35:48,601 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-11-23 04:35:48,610 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:35:50,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:35:50,294 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-11-23 04:36:32,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2018-11-23 04:36:32,759 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-23 04:36:32,760 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2018-11-23 04:36:32,779 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-11-23 04:36:32,780 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-11-23 04:36:32,780 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2018-11-23 04:36:32,780 INFO  L87              Difference]: Start difference. First operand 84893 states and 142905 transitions. Second operand 7 states.
[2018-11-23 04:37:44,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:37:44,455 INFO  L93              Difference]: Finished difference Result 434754 states and 820051 transitions.
[2018-11-23 04:37:44,455 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2018-11-23 04:37:44,455 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10229
[2018-11-23 04:37:44,455 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:37:45,161 INFO  L225             Difference]: With dead ends: 434754
[2018-11-23 04:37:45,161 INFO  L226             Difference]: Without dead ends: 349867
[2018-11-23 04:37:45,276 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 10252 GetRequests, 10238 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240
[2018-11-23 04:37:45,508 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 349867 states.
[2018-11-23 04:37:51,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 349867 to 348663.
[2018-11-23 04:37:51,708 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 348663 states.
[2018-11-23 04:37:52,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 348663 states to 348663 states and 561587 transitions.
[2018-11-23 04:37:52,245 INFO  L78                 Accepts]: Start accepts. Automaton has 348663 states and 561587 transitions. Word has length 10229
[2018-11-23 04:37:52,246 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-23 04:37:52,246 INFO  L480      AbstractCegarLoop]: Abstraction has 348663 states and 561587 transitions.
[2018-11-23 04:37:52,246 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-11-23 04:37:52,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 348663 states and 561587 transitions.
[2018-11-23 04:37:53,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10264
[2018-11-23 04:37:53,204 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:37:53,206 INFO  L402         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 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, 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, 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, 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, 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, 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, 1, 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[2018-11-23 04:37:53,206 INFO  L423      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:37:53,207 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:37:53,209 INFO  L82        PathProgramCache]: Analyzing trace with hash 945236812, now seen corresponding path program 1 times
[2018-11-23 04:37:53,209 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:37:53,209 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:37:53,210 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:37:53,210 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:37:53,210 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:37:53,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:38:17,886 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 51 proven. 22 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2018-11-23 04:38:17,886 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-23 04:38:17,886 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-11-23 04:38:17,895 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:38:19,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:38:19,568 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-11-23 04:38:42,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 77 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2018-11-23 04:38:42,392 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-23 04:38:42,394 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9
[2018-11-23 04:38:42,402 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2018-11-23 04:38:42,402 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2018-11-23 04:38:42,402 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2018-11-23 04:38:42,402 INFO  L87              Difference]: Start difference. First operand 348663 states and 561587 transitions. Second operand 9 states.
[2018-11-23 04:39:50,988 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:39:50,989 INFO  L93              Difference]: Finished difference Result 1092715 states and 2193143 transitions.
[2018-11-23 04:39:50,989 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2018-11-23 04:39:50,989 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 10263
[2018-11-23 04:39:50,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:39:53,539 INFO  L225             Difference]: With dead ends: 1092715
[2018-11-23 04:39:53,539 INFO  L226             Difference]: Without dead ends: 744058
[2018-11-23 04:39:53,962 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 10289 GetRequests, 10271 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342
[2018-11-23 04:39:54,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 744058 states.
[2018-11-23 04:40:07,222 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 744058 to 737553.
[2018-11-23 04:40:07,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 737553 states.
[2018-11-23 04:40:19,232 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 737553 states to 737553 states and 1385304 transitions.
[2018-11-23 04:40:19,233 INFO  L78                 Accepts]: Start accepts. Automaton has 737553 states and 1385304 transitions. Word has length 10263
[2018-11-23 04:40:19,234 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-11-23 04:40:19,234 INFO  L480      AbstractCegarLoop]: Abstraction has 737553 states and 1385304 transitions.
[2018-11-23 04:40:19,234 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2018-11-23 04:40:19,234 INFO  L276                IsEmpty]: Start isEmpty. Operand 737553 states and 1385304 transitions.
[2018-11-23 04:40:23,381 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10379
[2018-11-23 04:40:23,381 INFO  L394         BasicCegarLoop]: Found error trace
[2018-11-23 04:40:23,383 INFO  L402         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2018-11-23 04:40:23,383 INFO  L423      AbstractCegarLoop]: === Iteration 6 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2018-11-23 04:40:23,383 INFO  L141       PredicateUnifier]: Initialized classic predicate unifier
[2018-11-23 04:40:23,386 INFO  L82        PathProgramCache]: Analyzing trace with hash 2051166286, now seen corresponding path program 1 times
[2018-11-23 04:40:23,387 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-11-23 04:40:23,387 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-11-23 04:40:23,389 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:40:23,389 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:40:23,389 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-11-23 04:40:23,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:40:49,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 207 backedges. 166 proven. 37 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2018-11-23 04:40:49,206 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-11-23 04:40:49,206 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98988351-968c-46f6-b022-4d274d696043/bin-2019/uautomizer/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-11-23 04:40:49,214 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-11-23 04:40:50,740 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-11-23 04:40:50,832 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-11-23 04:41:15,621 INFO  L134       CoverageAnalysis]: Checked inductivity of 207 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked.
[2018-11-23 04:41:15,644 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2018-11-23 04:41:15,647 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9
[2018-11-23 04:41:15,652 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 9 states
[2018-11-23 04:41:15,652 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2018-11-23 04:41:15,653 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2018-11-23 04:41:15,653 INFO  L87              Difference]: Start difference. First operand 737553 states and 1385304 transitions. Second operand 9 states.
[2018-11-23 04:42:54,609 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-11-23 04:42:54,609 INFO  L93              Difference]: Finished difference Result 2324442 states and 5719389 transitions.
[2018-11-23 04:42:54,610 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2018-11-23 04:42:54,610 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 10378
[2018-11-23 04:42:54,610 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-11-23 04:43:05,944 INFO  L225             Difference]: With dead ends: 2324442
[2018-11-23 04:43:05,944 INFO  L226             Difference]: Without dead ends: 1586895
[2018-11-23 04:43:07,583 INFO  L631         BasicCegarLoop]: 0 DeclaredPredicates, 10400 GetRequests, 10384 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272
[2018-11-23 04:43:08,690 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1586895 states.