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_label07.c


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This is Ultimate 0.1.24-112bae1
[2019-09-07 15:35:44,752 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 15:35:44,754 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 15:35:44,771 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 15:35:44,771 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 15:35:44,773 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 15:35:44,775 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-07 15:35:44,790 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 15:35:44,791 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 15:35:44,792 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
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[2019-09-07 15:35:44,793 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 15:35:44,794 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 15:35:44,794 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 15:35:44,795 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 15:35:44,796 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 15:35:44,797 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 15:35:44,798 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 15:35:44,800 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 15:35:44,802 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 15:35:44,803 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 15:35:44,804 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 15:35:44,804 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 15:35:44,806 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-09-07 15:35:44,807 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 15:35:44,808 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 15:35:44,808 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 15:35:44,809 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 15:35:44,809 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 15:35:44,810 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 15:35:44,811 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 15:35:44,812 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 15:35:44,812 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 15:35:44,813 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 15:35:44,815 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 15:35:44,816 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 15:35:44,829 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 15:35:44,830 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 15:35:44,831 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 15:35:44,831 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 15:35:44,831 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 15:35:44,831 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 15:35:44,832 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 15:35:44,833 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 15:35:44,833 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 15:35:44,833 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 15:35:44,833 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 15:35:44,833 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 15:35:44,834 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 15:35:44,834 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 15:35:44,834 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 15:35:44,834 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 15:35:44,834 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 15:35:44,835 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 15:35:44,835 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 15:35:44,835 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 15:35:44,835 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 15:35:44,836 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 15:35:44,836 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 15:35:44,836 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 15:35:44,864 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 15:35:44,876 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 15:35:44,879 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 15:35:44,881 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 15:35:44,881 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 15:35:44,882 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label07.c
[2019-09-07 15:35:44,942 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08b11fa6/58b03441faa848988d28e8c9764a9bf2/FLAG9328c1501
[2019-09-07 15:35:47,049 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 15:35:47,050 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label07.c
[2019-09-07 15:35:47,204 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08b11fa6/58b03441faa848988d28e8c9764a9bf2/FLAG9328c1501
[2019-09-07 15:35:47,678 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08b11fa6/58b03441faa848988d28e8c9764a9bf2
[2019-09-07 15:35:47,687 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 15:35:47,688 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 15:35:47,692 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 15:35:47,693 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 15:35:47,696 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 15:35:47,697 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:35:47" (1/1) ...
[2019-09-07 15:35:47,700 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e6d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:35:47, skipping insertion in model container
[2019-09-07 15:35:47,701 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 03:35:47" (1/1) ...
[2019-09-07 15:35:47,708 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 15:35:48,756 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 15:36:00,603 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:36:00,608 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 15:36:08,948 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 15:36:12,485 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 15:36:12,485 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12 WrapperNode
[2019-09-07 15:36:12,486 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 15:36:12,487 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 15:36:12,487 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 15:36:12,487 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 15:36:12,498 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:12,498 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:12,918 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:12,919 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:13,671 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:13,844 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:17,019 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (1/1) ...
[2019-09-07 15:36:17,434 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 15:36:17,435 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 15:36:17,435 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 15:36:17,435 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 15:36:17,436 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (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 15:36:17,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 15:36:17,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 15:36:17,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 15:36:17,485 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 15:36:17,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 15:36:17,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 15:36:17,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 15:36:17,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 15:36:17,486 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 15:36:17,487 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 15:36:17,488 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 15:36:17,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 15:36:17,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 15:36:17,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 15:36:17,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 15:36:17,489 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 15:36:17,490 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 15:36:17,491 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 15:36:17,492 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 15:36:17,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 15:36:17,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 15:36:17,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 15:36:17,493 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 15:36:17,493 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 15:36:17,493 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 15:36:17,494 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 15:36:17,495 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 15:36:17,496 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 15:36:17,497 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 15:36:17,498 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 15:36:17,499 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 15:36:17,499 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 15:36:17,499 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 15:36:17,499 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 15:36:17,499 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 15:36:17,500 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 15:36:17,501 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 15:36:17,502 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 15:37:02,706 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 15:37:02,706 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 15:37:02,713 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:37:02 BoogieIcfgContainer
[2019-09-07 15:37:02,714 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 15:37:02,715 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 15:37:02,715 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 15:37:02,718 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 15:37:02,718 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 03:35:47" (1/3) ...
[2019-09-07 15:37:02,719 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c46bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:37:02, skipping insertion in model container
[2019-09-07 15:37:02,719 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 03:36:12" (2/3) ...
[2019-09-07 15:37:02,720 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c46bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 03:37:02, skipping insertion in model container
[2019-09-07 15:37:02,720 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 03:37:02" (3/3) ...
[2019-09-07 15:37:02,722 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label07.c
[2019-09-07 15:37:02,731 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 15:37:02,742 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 15:37:02,759 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 15:37:02,828 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 15:37:02,829 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 15:37:02,829 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 15:37:02,829 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 15:37:02,830 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 15:37:02,830 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 15:37:02,830 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 15:37:02,830 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 15:37:02,830 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 15:37:02,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 15:37:04,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10195
[2019-09-07 15:37:04,094 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:37:04,101 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 15:37:04,105 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:37:04,116 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:37:04,122 INFO  L82        PathProgramCache]: Analyzing trace with hash -224626414, now seen corresponding path program 1 times
[2019-09-07 15:37:04,124 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:37:04,124 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:37:04,170 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:37:04,170 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:37:04,171 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:37:07,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:38:47,129 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 15:38:47,133 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:38:47,134 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:38:47,158 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:38:47,171 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:38:47,172 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:38:47,175 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 15:39:43,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:39:43,701 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 15:39:43,701 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:39:43,703 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10194
[2019-09-07 15:39:43,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:39:43,901 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 15:39:43,901 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 15:39:43,941 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 47 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 15:39:44,003 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 15:39:44,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 15:39:44,779 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 15:39:44,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40372 transitions.
[2019-09-07 15:39:44,867 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40372 transitions. Word has length 10194
[2019-09-07 15:39:44,892 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:39:44,892 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40372 transitions.
[2019-09-07 15:39:44,893 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:39:44,893 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40372 transitions.
[2019-09-07 15:39:45,700 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10206
[2019-09-07 15:39:45,700 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:39:45,706 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 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[2019-09-07 15:39:45,707 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:39:45,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:39:45,713 INFO  L82        PathProgramCache]: Analyzing trace with hash -1186778060, now seen corresponding path program 1 times
[2019-09-07 15:39:45,714 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:39:45,714 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:39:45,717 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:39:45,717 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:39:45,718 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:39:46,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:40:22,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:40:22,420 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:40:22,421 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:40:22,436 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:40:22,436 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:40:22,436 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:40:22,437 INFO  L87              Difference]: Start difference. First operand 20756 states and 40372 transitions. Second operand 6 states.
[2019-09-07 15:41:38,172 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:41:38,172 INFO  L93              Difference]: Finished difference Result 63331 states and 123199 transitions.
[2019-09-07 15:41:38,173 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:41:38,173 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10205
[2019-09-07 15:41:38,173 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:41:38,362 INFO  L225             Difference]: With dead ends: 63331
[2019-09-07 15:41:38,362 INFO  L226             Difference]: Without dead ends: 42581
[2019-09-07 15:41:38,412 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 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 15:41:38,478 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42581 states.
[2019-09-07 15:41:39,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42581 to 42299.
[2019-09-07 15:41:39,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42299 states.
[2019-09-07 15:41:39,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42299 states to 42299 states and 80707 transitions.
[2019-09-07 15:41:39,913 INFO  L78                 Accepts]: Start accepts. Automaton has 42299 states and 80707 transitions. Word has length 10205
[2019-09-07 15:41:39,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:41:39,915 INFO  L475      AbstractCegarLoop]: Abstraction has 42299 states and 80707 transitions.
[2019-09-07 15:41:39,915 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:41:39,916 INFO  L276                IsEmpty]: Start isEmpty. Operand 42299 states and 80707 transitions.
[2019-09-07 15:41:40,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10215
[2019-09-07 15:41:40,886 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:41:40,892 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 15:41:40,893 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:41:40,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:41:40,896 INFO  L82        PathProgramCache]: Analyzing trace with hash -25147090, now seen corresponding path program 1 times
[2019-09-07 15:41:40,897 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:41:40,897 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:41:40,899 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:41:40,899 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:41:40,900 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:41:42,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:43:10,178 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:43:10,178 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:43:10,180 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 15:43:10,188 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 15:43:10,188 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 15:43:10,189 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 15:43:10,189 INFO  L87              Difference]: Start difference. First operand 42299 states and 80707 transitions. Second operand 3 states.
[2019-09-07 15:44:02,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:44:02,133 INFO  L93              Difference]: Finished difference Result 126778 states and 244844 transitions.
[2019-09-07 15:44:02,134 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 15:44:02,134 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10214
[2019-09-07 15:44:02,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:44:02,334 INFO  L225             Difference]: With dead ends: 126778
[2019-09-07 15:44:02,335 INFO  L226             Difference]: Without dead ends: 84485
[2019-09-07 15:44:02,415 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 15:44:02,496 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 84485 states.
[2019-09-07 15:44:03,740 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 84485 to 84485.
[2019-09-07 15:44:03,741 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 84485 states.
[2019-09-07 15:44:03,918 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84485 states to 84485 states and 144625 transitions.
[2019-09-07 15:44:03,921 INFO  L78                 Accepts]: Start accepts. Automaton has 84485 states and 144625 transitions. Word has length 10214
[2019-09-07 15:44:03,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:44:03,932 INFO  L475      AbstractCegarLoop]: Abstraction has 84485 states and 144625 transitions.
[2019-09-07 15:44:03,932 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 15:44:03,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 84485 states and 144625 transitions.
[2019-09-07 15:44:05,269 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10223
[2019-09-07 15:44:05,270 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:44:05,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:44:05,275 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:44:05,275 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:44:05,278 INFO  L82        PathProgramCache]: Analyzing trace with hash 835797022, now seen corresponding path program 1 times
[2019-09-07 15:44:05,278 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:44:05,278 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:44:05,280 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:44:05,280 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:44:05,280 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:44:05,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:44:39,870 INFO  L134       CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:44:39,871 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 15:44:39,872 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 15:44:39,877 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 15:44:39,877 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 15:44:39,878 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 15:44:39,878 INFO  L87              Difference]: Start difference. First operand 84485 states and 144625 transitions. Second operand 6 states.
[2019-09-07 15:45:57,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 15:45:57,857 INFO  L93              Difference]: Finished difference Result 212650 states and 366937 transitions.
[2019-09-07 15:45:57,857 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 15:45:57,857 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10222
[2019-09-07 15:45:57,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 15:45:58,173 INFO  L225             Difference]: With dead ends: 212650
[2019-09-07 15:45:58,176 INFO  L226             Difference]: Without dead ends: 128171
[2019-09-07 15:45:58,294 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 15:45:58,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128171 states.
[2019-09-07 15:46:00,304 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128171 to 128155.
[2019-09-07 15:46:00,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 128155 states.
[2019-09-07 15:46:00,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 128155 states to 128155 states and 191594 transitions.
[2019-09-07 15:46:00,572 INFO  L78                 Accepts]: Start accepts. Automaton has 128155 states and 191594 transitions. Word has length 10222
[2019-09-07 15:46:00,573 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 15:46:00,573 INFO  L475      AbstractCegarLoop]: Abstraction has 128155 states and 191594 transitions.
[2019-09-07 15:46:00,573 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 15:46:00,573 INFO  L276                IsEmpty]: Start isEmpty. Operand 128155 states and 191594 transitions.
[2019-09-07 15:46:01,336 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10231
[2019-09-07 15:46:01,336 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 15:46:01,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:46:01,343 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 15:46:01,344 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 15:46:01,347 INFO  L82        PathProgramCache]: Analyzing trace with hash -1511782446, now seen corresponding path program 1 times
[2019-09-07 15:46:01,347 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 15:46:01,347 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 15:46:01,349 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:46:01,349 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:46:01,349 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 15:46:01,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:46:40,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 15:46:40,416 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 15:46:40,416 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 15:46:40,432 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 15:46:43,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 15:46:43,468 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12326 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 15:46:43,671 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 15:47:42,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 15:47:42,846 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 15:47:42,849 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 15:47:42,890 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 15:47:42,890 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 15:47:42,891 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 15:47:42,891 INFO  L87              Difference]: Start difference. First operand 128155 states and 191594 transitions. Second operand 7 states.