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-programs/Problem101_label08.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 23:41:22,606 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 23:41:22,609 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 23:41:22,627 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 23:41:22,627 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 23:41:22,629 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 23:41:22,631 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-07 23:41:22,647 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2019-09-07 23:41:22,652 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 23:41:22,653 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 23:41:22,654 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 23:41:22,655 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 23:41:22,655 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 23:41:22,656 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 23:41:22,658 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 23:41:22,660 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 23:41:22,661 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 23:41:22,662 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 23:41:22,663 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 23:41:22,664 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 23:41:22,666 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-09-07 23:41:22,666 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 23:41:22,667 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-09-07 23:41:22,668 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 23:41:22,672 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 23:41:22,672 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 23:41:22,673 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 23:41:22,674 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 23:41:22,675 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 23:41:22,689 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 23:41:22,689 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 23:41:22,690 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 23:41:22,691 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 23:41:22,691 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 23:41:22,691 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 23:41:22,691 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 23:41:22,692 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 23:41:22,693 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 23:41:22,693 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 23:41:22,693 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 23:41:22,693 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 23:41:22,693 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 23:41:22,694 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 23:41:22,694 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 23:41:22,694 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 23:41:22,694 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 23:41:22,694 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 23:41:22,695 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 23:41:22,695 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 23:41:22,695 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 23:41:22,695 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 23:41:22,695 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 23:41:22,696 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 23:41:22,723 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 23:41:22,736 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 23:41:22,740 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 23:41:22,741 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 23:41:22,742 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 23:41:22,742 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label08.c
[2019-09-07 23:41:22,803 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c032eb8/b0281ec8f7af45daba92dad6eec48457/FLAG71f3990ba
[2019-09-07 23:41:25,425 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 23:41:25,426 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label08.c
[2019-09-07 23:41:25,609 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c032eb8/b0281ec8f7af45daba92dad6eec48457/FLAG71f3990ba
[2019-09-07 23:41:25,860 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4c032eb8/b0281ec8f7af45daba92dad6eec48457
[2019-09-07 23:41:25,872 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 23:41:25,873 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 23:41:25,874 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 23:41:25,875 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 23:41:25,878 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 23:41:25,879 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:41:25" (1/1) ...
[2019-09-07 23:41:25,882 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c157ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:25, skipping insertion in model container
[2019-09-07 23:41:25,882 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:41:25" (1/1) ...
[2019-09-07 23:41:25,890 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 23:41:26,860 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 23:41:39,492 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:41:39,498 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 23:41:48,572 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:41:49,758 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 23:41:49,758 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49 WrapperNode
[2019-09-07 23:41:49,758 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 23:41:49,759 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 23:41:49,759 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 23:41:49,759 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 23:41:49,776 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:49,777 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:50,274 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:50,275 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:51,164 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:51,345 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:51,943 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (1/1) ...
[2019-09-07 23:41:52,513 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 23:41:52,514 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 23:41:52,514 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 23:41:52,514 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 23:41:52,515 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (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 23:41:52,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 23:41:52,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 23:41:52,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 23:41:52,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 23:41:52,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 23:41:52,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 23:41:52,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 23:41:52,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 23:41:52,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 23:41:52,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 23:41:52,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 23:41:52,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 23:41:52,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 23:41:52,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 23:41:52,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 23:41:52,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 23:41:52,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 23:41:52,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 23:41:52,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 23:41:52,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 23:41:52,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 23:41:52,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 23:41:52,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 23:41:52,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 23:41:52,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 23:41:52,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 23:41:52,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 23:41:52,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 23:41:52,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 23:41:52,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 23:41:52,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 23:41:52,594 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 23:41:52,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 23:41:52,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 23:41:52,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 23:41:52,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 23:41:52,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 23:41:52,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 23:41:52,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 23:41:52,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 23:41:52,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 23:41:52,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 23:41:52,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 23:41:52,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 23:41:52,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 23:41:52,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 23:41:52,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 23:41:52,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 23:41:52,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 23:41:52,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 23:41:52,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 23:41:52,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 23:41:52,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 23:41:52,603 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 23:42:46,560 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 23:42:46,560 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 23:42:46,566 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:42:46 BoogieIcfgContainer
[2019-09-07 23:42:46,567 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 23:42:46,568 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 23:42:46,568 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 23:42:46,571 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 23:42:46,571 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:41:25" (1/3) ...
[2019-09-07 23:42:46,572 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0b5441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:42:46, skipping insertion in model container
[2019-09-07 23:42:46,572 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:41:49" (2/3) ...
[2019-09-07 23:42:46,573 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a0b5441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:42:46, skipping insertion in model container
[2019-09-07 23:42:46,573 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:42:46" (3/3) ...
[2019-09-07 23:42:46,575 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem101_label08.c
[2019-09-07 23:42:46,584 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 23:42:46,596 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 23:42:46,613 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 23:42:46,678 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 23:42:46,679 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 23:42:46,679 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 23:42:46,679 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 23:42:46,680 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 23:42:46,680 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 23:42:46,680 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 23:42:46,680 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 23:42:46,680 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 23:42:46,813 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 23:42:47,786 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10187
[2019-09-07 23:42:47,787 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:42:47,794 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 23:42:47,797 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:42:47,806 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:42:47,814 INFO  L82        PathProgramCache]: Analyzing trace with hash -1218053262, now seen corresponding path program 1 times
[2019-09-07 23:42:47,817 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:42:47,817 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:42:47,875 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:42:47,876 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:42:47,876 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:42:50,234 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:44:32,571 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 23:44:32,574 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:44:32,576 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 23:44:32,600 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 23:44:32,615 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 23:44:32,617 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:44:32,624 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 23:45:37,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:45:37,128 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 23:45:37,128 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 23:45:37,130 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10186
[2019-09-07 23:45:37,160 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:45:37,302 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 23:45:37,302 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 23:45:37,334 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 23:45:37,390 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 23:45:37,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 23:45:37,937 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 23:45:38,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 39358 transitions.
[2019-09-07 23:45:38,009 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 39358 transitions. Word has length 10186
[2019-09-07 23:45:38,028 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:45:38,028 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 39358 transitions.
[2019-09-07 23:45:38,028 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 23:45:38,029 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 39358 transitions.
[2019-09-07 23:45:38,864 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10204
[2019-09-07 23:45:38,864 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:45:38,869 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 1, 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[2019-09-07 23:45:38,870 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:45:38,871 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:45:38,875 INFO  L82        PathProgramCache]: Analyzing trace with hash 1049990856, now seen corresponding path program 1 times
[2019-09-07 23:45:38,875 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:45:38,875 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:45:38,879 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:45:38,879 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:45:38,880 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:45:39,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:46:16,290 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:46:16,291 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:46:16,292 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 23:46:16,308 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 23:46:16,308 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 23:46:16,308 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 23:46:16,309 INFO  L87              Difference]: Start difference. First operand 20756 states and 39358 transitions. Second operand 6 states.
[2019-09-07 23:47:39,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:47:39,196 INFO  L93              Difference]: Finished difference Result 63355 states and 120187 transitions.
[2019-09-07 23:47:39,197 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 23:47:39,198 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10203
[2019-09-07 23:47:39,198 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:47:39,365 INFO  L225             Difference]: With dead ends: 63355
[2019-09-07 23:47:39,365 INFO  L226             Difference]: Without dead ends: 42605
[2019-09-07 23:47:39,415 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 23:47:39,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42605 states.
[2019-09-07 23:47:40,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42605 to 42326.
[2019-09-07 23:47:40,707 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 23:47:40,805 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 71239 transitions.
[2019-09-07 23:47:40,806 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 71239 transitions. Word has length 10203
[2019-09-07 23:47:40,809 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:47:40,809 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 71239 transitions.
[2019-09-07 23:47:40,809 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 23:47:40,809 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 71239 transitions.
[2019-09-07 23:47:42,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10212
[2019-09-07 23:47:42,449 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:47:42,456 INFO  L399         BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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 23:47:42,458 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:47:42,459 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:47:42,463 INFO  L82        PathProgramCache]: Analyzing trace with hash -323607660, now seen corresponding path program 1 times
[2019-09-07 23:47:42,463 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:47:42,463 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:47:42,466 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:47:42,467 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:47:42,467 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:47:43,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:48:29,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:48:29,739 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 23:48:29,739 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 23:48:29,753 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:48:32,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:48:32,899 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12355 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 23:48:33,117 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 23:49:33,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 27 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-07 23:49:33,840 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 23:49:33,843 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 23:49:33,868 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 23:49:33,868 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 23:49:33,868 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2019-09-07 23:49:33,869 INFO  L87              Difference]: Start difference. First operand 42326 states and 71239 transitions. Second operand 7 states.
[2019-09-07 23:52:54,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:52:54,184 INFO  L93              Difference]: Finished difference Result 213465 states and 369279 transitions.
[2019-09-07 23:52:54,184 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2019-09-07 23:52:54,185 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10211
[2019-09-07 23:52:54,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:52:54,679 INFO  L225             Difference]: With dead ends: 213465
[2019-09-07 23:52:54,679 INFO  L226             Difference]: Without dead ends: 171145
[2019-09-07 23:52:54,802 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10225 GetRequests, 10215 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2019-09-07 23:52:54,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171145 states.
[2019-09-07 23:52:58,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171145 to 171129.
[2019-09-07 23:52:58,700 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 171129 states.
[2019-09-07 23:52:59,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171129 states to 171129 states and 251470 transitions.
[2019-09-07 23:52:59,053 INFO  L78                 Accepts]: Start accepts. Automaton has 171129 states and 251470 transitions. Word has length 10211
[2019-09-07 23:52:59,055 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:52:59,055 INFO  L475      AbstractCegarLoop]: Abstraction has 171129 states and 251470 transitions.
[2019-09-07 23:52:59,055 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-09-07 23:52:59,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 171129 states and 251470 transitions.
[2019-09-07 23:53:04,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10238
[2019-09-07 23:53:04,788 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:53:04,793 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, 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, 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[2019-09-07 23:53:04,794 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:53:04,794 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:53:04,798 INFO  L82        PathProgramCache]: Analyzing trace with hash 2132421152, now seen corresponding path program 1 times
[2019-09-07 23:53:04,798 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:53:04,798 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:53:04,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:53:04,801 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:53:04,801 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:53:05,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:53:38,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:53:38,479 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 23:53:38,479 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 23:53:38,500 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:53:41,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:53:41,600 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12383 conjuncts, 4 conjunts are in the unsatisfiable core
[2019-09-07 23:53:41,743 INFO  L279         TraceCheckSpWp]: Computing forward predicates...