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_label54.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:16:03,522 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:16:03,524 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:16:03,535 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:16:03,536 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:16:03,537 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:16:03,539 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:16:03,541 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:16:03,542 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:16:03,543 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:16:03,544 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:16:03,545 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:16:03,545 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:16:03,546 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:16:03,547 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:16:03,549 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:16:03,549 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:16:03,550 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:16:03,552 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:16:03,554 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:16:03,556 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:16:03,557 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:16:03,558 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:16:03,559 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:16:03,562 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:16:03,562 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:16:03,562 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:16:03,563 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:16:03,564 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 16:16:03,565 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:16:03,565 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-09-07 16:16:03,566 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-09-07 16:16:03,566 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:16:03,567 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:16:03,568 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:16:03,568 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 16:16:03,569 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 16:16:03,569 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 16:16:03,570 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 16:16:03,570 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 16:16:03,571 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:16:03,572 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 16:16:03,587 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:16:03,587 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:16:03,588 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:16:03,589 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:16:03,589 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:16:03,589 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:16:03,589 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:16:03,590 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:16:03,590 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:16:03,590 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:16:03,590 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:16:03,590 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:16:03,591 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:16:03,591 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:16:03,591 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:16:03,591 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:16:03,591 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:16:03,592 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:16:03,592 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:16:03,592 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:16:03,592 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:16:03,592 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:16:03,593 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:16:03,593 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:16:03,593 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:16:03,593 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:16:03,593 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:16:03,594 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:16:03,594 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:16:03,622 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:16:03,635 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:16:03,638 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:16:03,639 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:16:03,640 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:16:03,640 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label54.c
[2019-09-07 16:16:03,697 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7bd186fb/3301acf54ea84ccbbd4591d78fee6dd3/FLAG359a640c9
[2019-09-07 16:16:05,823 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:16:05,824 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label54.c
[2019-09-07 16:16:05,953 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7bd186fb/3301acf54ea84ccbbd4591d78fee6dd3/FLAG359a640c9
[2019-09-07 16:16:06,082 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7bd186fb/3301acf54ea84ccbbd4591d78fee6dd3
[2019-09-07 16:16:06,094 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:16:06,096 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:16:06,097 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:16:06,097 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:16:06,101 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:16:06,102 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:16:06" (1/1) ...
[2019-09-07 16:16:06,105 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350286e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:06, skipping insertion in model container
[2019-09-07 16:16:06,105 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:16:06" (1/1) ...
[2019-09-07 16:16:06,111 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:16:07,277 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:16:18,131 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:16:18,136 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:16:26,428 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:16:30,808 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:16:30,809 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30 WrapperNode
[2019-09-07 16:16:30,809 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:16:30,810 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:16:30,810 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:16:30,810 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:16:30,824 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:30,824 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:31,217 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:31,221 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:32,298 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:32,541 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:32,861 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
[2019-09-07 16:16:36,797 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:16:36,797 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:16:36,797 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:16:36,798 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:16:36,799 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:16:36,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:16:36,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:16:36,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:16:36,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:16:36,869 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:16:36,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:16:36,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:16:36,871 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:16:36,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:16:36,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:16:36,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:16:36,872 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:16:36,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:16:36,873 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:16:36,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:16:36,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:16:36,876 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:16:36,877 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:16:36,878 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:16:36,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:16:36,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:16:36,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:16:36,879 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:16:36,880 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:16:36,881 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:16:36,882 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:16:36,882 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:16:36,882 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:16:36,882 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:16:36,883 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:16:36,883 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:16:36,883 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:16:36,883 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:16:36,884 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:16:36,885 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:16:36,885 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:16:36,885 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:16:36,885 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:16:36,885 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:16:36,886 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:16:36,886 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:16:36,886 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:16:36,886 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:16:36,886 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:16:36,887 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:16:36,887 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:16:36,887 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:16:36,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:16:36,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:16:36,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:16:36,888 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:16:36,889 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:16:36,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:16:36,890 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:16:36,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:16:36,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:16:36,891 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:16:36,892 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:16:36,892 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:16:36,893 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:16:36,894 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:16:36,894 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:17:23,366 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:17:23,367 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:17:23,374 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:17:23 BoogieIcfgContainer
[2019-09-07 16:17:23,374 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:17:23,375 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:17:23,376 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:17:23,379 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:17:23,379 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:16:06" (1/3) ...
[2019-09-07 16:17:23,380 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e990293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:17:23, skipping insertion in model container
[2019-09-07 16:17:23,380 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:16:30" (2/3) ...
[2019-09-07 16:17:23,381 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e990293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:17:23, skipping insertion in model container
[2019-09-07 16:17:23,381 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:17:23" (3/3) ...
[2019-09-07 16:17:23,383 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label54.c
[2019-09-07 16:17:23,393 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:17:23,406 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:17:23,424 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:17:23,498 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:17:23,499 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:17:23,499 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:17:23,499 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:17:23,499 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:17:23,500 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:17:23,500 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:17:23,500 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:17:23,500 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:17:23,655 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:17:25,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10233
[2019-09-07 16:17:25,464 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:17:25,473 INFO  L399         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:17:25,477 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:17:25,488 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:17:25,495 INFO  L82        PathProgramCache]: Analyzing trace with hash -1606811190, now seen corresponding path program 1 times
[2019-09-07 16:17:25,498 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:17:25,498 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:17:25,558 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:17:25,558 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:17:25,558 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:17:27,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:19:01,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:19:01,961 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:19:01,963 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:19:01,984 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:19:01,999 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:19:02,002 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:19:02,004 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:19:58,887 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:19:58,888 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:19:58,894 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:19:58,896 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10232
[2019-09-07 16:19:58,923 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:19:59,066 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:19:59,066 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:19:59,101 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 16:19:59,158 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:19:59,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:19:59,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:19:59,919 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40354 transitions.
[2019-09-07 16:19:59,922 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40354 transitions. Word has length 10232
[2019-09-07 16:19:59,946 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:19:59,946 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40354 transitions.
[2019-09-07 16:19:59,947 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:19:59,947 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40354 transitions.
[2019-09-07 16:20:00,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10242
[2019-09-07 16:20:00,739 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:20:00,744 INFO  L399         BasicCegarLoop]: trace histogram [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, 1, 1, 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[2019-09-07 16:20:00,745 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:20:00,745 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:20:00,752 INFO  L82        PathProgramCache]: Analyzing trace with hash 1455638448, now seen corresponding path program 1 times
[2019-09-07 16:20:00,752 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:20:00,752 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:20:00,757 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:20:00,757 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:20:00,757 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:20:01,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:20:32,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:20:32,210 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:20:32,211 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-07 16:20:32,224 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-07 16:20:32,225 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-07 16:20:32,225 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-07 16:20:32,225 INFO  L87              Difference]: Start difference. First operand 20756 states and 40354 transitions. Second operand 5 states.
[2019-09-07 16:21:45,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:21:45,139 INFO  L93              Difference]: Finished difference Result 63355 states and 123175 transitions.
[2019-09-07 16:21:45,140 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:21:45,140 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10241
[2019-09-07 16:21:45,140 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:21:45,333 INFO  L225             Difference]: With dead ends: 63355
[2019-09-07 16:21:45,333 INFO  L226             Difference]: Without dead ends: 42605
[2019-09-07 16:21:45,389 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-09-07 16:21:45,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42605 states.
[2019-09-07 16:21:46,600 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42605 to 42326.
[2019-09-07 16:21:46,601 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42326 states.
[2019-09-07 16:21:46,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72775 transitions.
[2019-09-07 16:21:46,714 INFO  L78                 Accepts]: Start accepts. Automaton has 42326 states and 72775 transitions. Word has length 10241
[2019-09-07 16:21:46,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:21:46,716 INFO  L475      AbstractCegarLoop]: Abstraction has 42326 states and 72775 transitions.
[2019-09-07 16:21:46,716 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-07 16:21:46,716 INFO  L276                IsEmpty]: Start isEmpty. Operand 42326 states and 72775 transitions.
[2019-09-07 16:21:50,803 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10245
[2019-09-07 16:21:50,804 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:21:50,813 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:21:50,814 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:21:50,815 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:21:50,819 INFO  L82        PathProgramCache]: Analyzing trace with hash -165504522, now seen corresponding path program 1 times
[2019-09-07 16:21:50,820 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:21:50,820 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:21:50,822 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:21:50,823 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:21:50,823 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:21:51,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:22:23,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:22:23,725 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:22:23,727 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:22:23,735 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:22:23,735 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:22:23,736 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:22:23,736 INFO  L87              Difference]: Start difference. First operand 42326 states and 72775 transitions. Second operand 6 states.
[2019-09-07 16:23:54,425 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:23:54,426 INFO  L93              Difference]: Finished difference Result 130482 states and 228494 transitions.
[2019-09-07 16:23:54,427 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:23:54,427 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10244
[2019-09-07 16:23:54,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:23:54,811 INFO  L225             Difference]: With dead ends: 130482
[2019-09-07 16:23:54,811 INFO  L226             Difference]: Without dead ends: 88162
[2019-09-07 16:23:54,897 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:23:54,985 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 88162 states.
[2019-09-07 16:23:56,894 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 88162 to 87056.
[2019-09-07 16:23:56,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 87056 states.
[2019-09-07 16:23:57,092 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87056 states to 87056 states and 146983 transitions.
[2019-09-07 16:23:57,093 INFO  L78                 Accepts]: Start accepts. Automaton has 87056 states and 146983 transitions. Word has length 10244
[2019-09-07 16:23:57,095 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:23:57,095 INFO  L475      AbstractCegarLoop]: Abstraction has 87056 states and 146983 transitions.
[2019-09-07 16:23:57,096 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:23:57,096 INFO  L276                IsEmpty]: Start isEmpty. Operand 87056 states and 146983 transitions.
[2019-09-07 16:23:57,837 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10272
[2019-09-07 16:23:57,837 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:23:57,843 INFO  L399         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 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, 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[2019-09-07 16:23:57,844 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:23:57,844 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:23:57,846 INFO  L82        PathProgramCache]: Analyzing trace with hash 1958512084, now seen corresponding path program 1 times
[2019-09-07 16:23:57,846 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:23:57,846 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:23:57,848 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:23:57,849 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:23:57,849 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:23:58,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:24:38,136 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 40 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2019-09-07 16:24:38,136 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:24:38,138 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)
[2019-09-07 16:24:38,175 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 16:24:41,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:24:41,336 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12445 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 16:24:41,540 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:25:43,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2019-09-07 16:25:43,122 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:25:43,124 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 16:25:43,154 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 16:25:43,154 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 16:25:43,155 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-07 16:25:43,155 INFO  L87              Difference]: Start difference. First operand 87056 states and 146983 transitions. Second operand 7 states.