java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem07_label56.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:21:32,402 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:21:32,404 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:21:32,416 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:21:32,416 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:21:32,417 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:21:32,419 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:21:32,420 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:21:32,422 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:21:32,423 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:21:32,424 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:21:32,425 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:21:32,425 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:21:32,426 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:21:32,427 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:21:32,428 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:21:32,429 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:21:32,430 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:21:32,431 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:21:32,434 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:21:32,435 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:21:32,436 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:21:32,437 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:21:32,438 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:21:32,441 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:21:32,441 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:21:32,441 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:21:32,442 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:21:32,442 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2019-09-07 16:21:32,444 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:21:32,445 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:21:32,446 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:21:32,447 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:21:32,447 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 16:21:32,448 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 16:21:32,450 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:21:32,451 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 16:21:32,472 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:21:32,472 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:21:32,473 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:21:32,474 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:21:32,474 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:21:32,474 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:21:32,475 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:21:32,475 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:21:32,475 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:21:32,475 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:21:32,476 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:21:32,477 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:21:32,477 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:21:32,477 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:21:32,477 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:21:32,477 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:21:32,478 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:21:32,478 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:21:32,478 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:21:32,479 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:21:32,480 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:21:32,480 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:21:32,480 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:21:32,480 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:21:32,517 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:21:32,528 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:21:32,532 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:21:32,533 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:21:32,533 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:21:32,534 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label56.c
[2019-09-07 16:21:32,604 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53d775c04/40a7964a13f4487b8c8c426bb7946386/FLAG7bd76f5a3
[2019-09-07 16:21:34,907 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:21:34,907 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label56.c
[2019-09-07 16:21:35,052 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53d775c04/40a7964a13f4487b8c8c426bb7946386/FLAG7bd76f5a3
[2019-09-07 16:21:35,438 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53d775c04/40a7964a13f4487b8c8c426bb7946386
[2019-09-07 16:21:35,451 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:21:35,452 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:21:35,454 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:21:35,454 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:21:35,457 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:21:35,458 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:21:35" (1/1) ...
[2019-09-07 16:21:35,460 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e607a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:21:35, skipping insertion in model container
[2019-09-07 16:21:35,461 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:21:35" (1/1) ...
[2019-09-07 16:21:35,467 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:21:36,475 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:21:49,078 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:21:49,084 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:22:00,955 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:22:02,801 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:22:02,802 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02 WrapperNode
[2019-09-07 16:22:02,802 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:22:02,804 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:22:02,804 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:22:02,804 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:22:02,816 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:02,817 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:03,367 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:03,368 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:04,927 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:05,267 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:06,173 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
[2019-09-07 16:22:06,880 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:22:06,881 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:22:06,882 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:22:06,882 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:22:06,883 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
[2019-09-07 16:22:06,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:22:06,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:22:06,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:22:06,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:22:06,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:22:06,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:22:06,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:22:06,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:22:06,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:22:06,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:22:06,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:22:06,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:22:06,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:22:06,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:22:06,965 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:22:06,966 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:22:06,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:22:06,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:22:06,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:22:06,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:22:06,967 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:22:06,968 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:22:06,969 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:22:06,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:22:06,970 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:22:06,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:22:06,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:22:06,972 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:22:06,973 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:22:06,973 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:22:06,973 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:22:06,973 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:22:06,973 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:22:06,974 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:22:06,974 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:22:06,974 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:22:06,975 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:22:06,976 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:22:06,976 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:22:06,977 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:22:06,977 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:22:06,977 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:22:06,977 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:22:06,977 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:22:06,978 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:22:06,978 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:22:06,979 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:22:06,979 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:22:06,979 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:22:06,980 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:22:06,980 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:22:06,981 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:22:06,982 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:22:06,982 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:22:06,982 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:22:56,893 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:22:56,894 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:22:56,900 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:22:56 BoogieIcfgContainer
[2019-09-07 16:22:56,900 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:22:56,901 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:22:56,901 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:22:56,904 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:22:56,905 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:21:35" (1/3) ...
[2019-09-07 16:22:56,906 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cc6c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:22:56, skipping insertion in model container
[2019-09-07 16:22:56,906 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:22:02" (2/3) ...
[2019-09-07 16:22:56,906 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49cc6c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:22:56, skipping insertion in model container
[2019-09-07 16:22:56,906 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:22:56" (3/3) ...
[2019-09-07 16:22:56,908 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label56.c
[2019-09-07 16:22:56,918 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:22:56,930 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:22:56,948 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:22:57,024 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:22:57,024 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:22:57,025 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:22:57,025 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:22:57,025 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:22:57,025 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:22:57,025 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:22:57,025 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:22:57,026 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:22:57,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:22:58,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10225
[2019-09-07 16:22:58,591 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:22:58,599 INFO  L399         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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[2019-09-07 16:22:58,602 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:22:58,612 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:22:58,622 INFO  L82        PathProgramCache]: Analyzing trace with hash -73128918, now seen corresponding path program 1 times
[2019-09-07 16:22:58,624 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:22:58,625 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:22:58,676 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:22:58,676 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:22:58,676 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:23:01,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:24:39,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:24:39,640 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:24:39,642 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:24:39,661 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:24:39,675 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:24:39,677 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:24:39,679 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:25:35,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:25:35,790 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:25:35,791 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:25:35,792 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10224
[2019-09-07 16:25:35,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:25:35,966 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:25:35,967 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:25:36,008 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 48 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:25:36,069 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:25:36,795 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:25:36,796 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:25:36,876 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 39424 transitions.
[2019-09-07 16:25:36,879 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 39424 transitions. Word has length 10224
[2019-09-07 16:25:36,901 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:25:36,901 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 39424 transitions.
[2019-09-07 16:25:36,902 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:25:36,902 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 39424 transitions.
[2019-09-07 16:25:37,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10233
[2019-09-07 16:25:37,603 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:25:37,609 INFO  L399         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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[2019-09-07 16:25:37,610 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:25:37,610 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:25:37,617 INFO  L82        PathProgramCache]: Analyzing trace with hash -1239167266, now seen corresponding path program 1 times
[2019-09-07 16:25:37,617 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:25:37,618 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:25:37,623 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:37,623 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:25:37,623 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:38,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:27:20,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:27:20,682 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:27:20,682 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:27:20,700 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:27:20,701 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:27:20,702 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:27:20,702 INFO  L87              Difference]: Start difference. First operand 20756 states and 39424 transitions. Second operand 3 states.
[2019-09-07 16:28:16,130 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:28:16,130 INFO  L93              Difference]: Finished difference Result 62254 states and 118811 transitions.
[2019-09-07 16:28:16,131 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:28:16,131 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10232
[2019-09-07 16:28:16,148 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:28:16,258 INFO  L225             Difference]: With dead ends: 62254
[2019-09-07 16:28:16,258 INFO  L226             Difference]: Without dead ends: 41504
[2019-09-07 16:28:16,301 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:28:16,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41504 states.
[2019-09-07 16:28:16,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41504 to 41504.
[2019-09-07 16:28:16,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41504 states.
[2019-09-07 16:28:17,064 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41504 states to 41504 states and 69464 transitions.
[2019-09-07 16:28:17,065 INFO  L78                 Accepts]: Start accepts. Automaton has 41504 states and 69464 transitions. Word has length 10232
[2019-09-07 16:28:17,075 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:28:17,075 INFO  L475      AbstractCegarLoop]: Abstraction has 41504 states and 69464 transitions.
[2019-09-07 16:28:17,075 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:28:17,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 41504 states and 69464 transitions.
[2019-09-07 16:28:18,225 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10260
[2019-09-07 16:28:18,225 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:28:18,231 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2019-09-07 16:28:18,232 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:28:18,232 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:28:18,236 INFO  L82        PathProgramCache]: Analyzing trace with hash 1599296668, now seen corresponding path program 1 times
[2019-09-07 16:28:18,237 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:28:18,237 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:28:18,240 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:28:18,242 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:28:18,242 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:28:18,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:28:57,038 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:28:57,039 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:28:57,040 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:28:57,048 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:28:57,048 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:28:57,048 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:28:57,048 INFO  L87              Difference]: Start difference. First operand 41504 states and 69464 transitions. Second operand 6 states.
[2019-09-07 16:30:13,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:30:13,766 INFO  L93              Difference]: Finished difference Result 126691 states and 214438 transitions.
[2019-09-07 16:30:13,767 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:30:13,767 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10259
[2019-09-07 16:30:13,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:30:14,119 INFO  L225             Difference]: With dead ends: 126691
[2019-09-07 16:30:14,119 INFO  L226             Difference]: Without dead ends: 85193
[2019-09-07 16:30:14,211 INFO  L628         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
[2019-09-07 16:30:14,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85193 states.
[2019-09-07 16:30:15,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85193 to 85177.
[2019-09-07 16:30:15,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 85177 states.
[2019-09-07 16:30:15,931 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85177 states to 85177 states and 130786 transitions.
[2019-09-07 16:30:15,933 INFO  L78                 Accepts]: Start accepts. Automaton has 85177 states and 130786 transitions. Word has length 10259
[2019-09-07 16:30:15,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:30:15,935 INFO  L475      AbstractCegarLoop]: Abstraction has 85177 states and 130786 transitions.
[2019-09-07 16:30:15,936 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:30:15,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 85177 states and 130786 transitions.
[2019-09-07 16:30:17,043 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10268
[2019-09-07 16:30:17,043 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:30:17,052 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2019-09-07 16:30:17,052 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:30:17,052 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:30:17,057 INFO  L82        PathProgramCache]: Analyzing trace with hash 341249384, now seen corresponding path program 1 times
[2019-09-07 16:30:17,057 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:30:17,057 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:30:17,063 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:30:17,063 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:30:17,063 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:30:17,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:30:54,656 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:30:54,657 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:30:54,657 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
[2019-09-07 16:30:54,671 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:30:57,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:30:57,766 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12369 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-07 16:30:57,967 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:31:30,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:31:30,996 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-09-07 16:31:30,999 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9
[2019-09-07 16:31:31,028 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-09-07 16:31:31,029 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-09-07 16:31:31,029 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:31:31,030 INFO  L87              Difference]: Start difference. First operand 85177 states and 130786 transitions. Second operand 9 states.