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_label52.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:15:13,647 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:15:13,649 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:15:13,661 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:15:13,662 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:15:13,663 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:15:13,664 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:15:13,666 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:15:13,668 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:15:13,669 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:15:13,670 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:15:13,671 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:15:13,671 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:15:13,672 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:15:13,673 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:15:13,674 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:15:13,675 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:15:13,676 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:15:13,678 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:15:13,680 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:15:13,682 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:15:13,683 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:15:13,684 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:15:13,685 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:15:13,687 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:15:13,687 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:15:13,688 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:15:13,688 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:15:13,689 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 16:15:13,690 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:15:13,690 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:15:13,691 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:15:13,692 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:15:13,693 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:15:13,693 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 16:15:13,694 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 16:15:13,694 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 16:15:13,695 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-09-07 16:15:13,695 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-09-07 16:15:13,696 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:15:13,697 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 16:15:13,712 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:15:13,712 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:15:13,714 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:15:13,714 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:15:13,714 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:15:13,714 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:15:13,715 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:15:13,715 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:15:13,715 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:15:13,715 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:15:13,715 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:15:13,716 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:15:13,716 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:15:13,716 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:15:13,716 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:15:13,716 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:15:13,717 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:15:13,717 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:15:13,717 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:15:13,717 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:15:13,717 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:15:13,718 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:15:13,718 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:15:13,718 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:15:13,718 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:15:13,719 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:15:13,719 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:15:13,719 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:15:13,719 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:15:13,748 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:15:13,765 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:15:13,769 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:15:13,772 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:15:13,773 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:15:13,774 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label52.c
[2019-09-07 16:15:13,848 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c577ba74/68c9d7f0aa194e6198949839ef603e56/FLAG394b1a703
[2019-09-07 16:15:16,378 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:15:16,379 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label52.c
[2019-09-07 16:15:16,562 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c577ba74/68c9d7f0aa194e6198949839ef603e56/FLAG394b1a703
[2019-09-07 16:15:16,820 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c577ba74/68c9d7f0aa194e6198949839ef603e56
[2019-09-07 16:15:16,833 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:15:16,834 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:15:16,836 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:15:16,836 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:15:16,839 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:15:16,840 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:15:16" (1/1) ...
[2019-09-07 16:15:16,843 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd174ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:16, skipping insertion in model container
[2019-09-07 16:15:16,843 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:15:16" (1/1) ...
[2019-09-07 16:15:16,851 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:15:18,002 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:15:30,976 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:15:30,981 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:15:39,664 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:15:40,338 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:15:40,339 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40 WrapperNode
[2019-09-07 16:15:40,339 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:15:40,340 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:15:40,340 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:15:40,340 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:15:40,350 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:40,350 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:40,862 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:40,863 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:43,917 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:44,069 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:44,417 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (1/1) ...
[2019-09-07 16:15:44,884 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:15:44,885 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:15:44,885 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:15:44,885 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:15:44,886 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (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 16:15:44,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:15:44,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:15:44,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:15:44,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:15:44,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:15:44,957 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:15:44,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:15:44,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:15:44,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:15:44,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:15:44,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:15:44,959 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:15:44,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:15:44,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:15:44,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:15:44,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:15:44,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:15:44,964 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:15:44,964 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:15:44,964 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:15:44,964 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:15:44,965 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:15:44,966 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:15:44,967 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:15:44,968 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:15:44,969 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:15:44,970 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:15:44,971 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:15:44,972 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:15:44,972 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:15:44,972 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:16:34,940 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:16:34,940 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:16:34,946 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:16:34 BoogieIcfgContainer
[2019-09-07 16:16:34,947 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:16:34,948 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:16:34,948 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:16:34,951 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:16:34,951 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:15:16" (1/3) ...
[2019-09-07 16:16:34,952 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b226127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:16:34, skipping insertion in model container
[2019-09-07 16:16:34,952 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:15:40" (2/3) ...
[2019-09-07 16:16:34,953 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b226127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:16:34, skipping insertion in model container
[2019-09-07 16:16:34,953 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:16:34" (3/3) ...
[2019-09-07 16:16:34,955 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label52.c
[2019-09-07 16:16:34,964 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:16:34,980 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:16:34,996 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:16:35,080 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:16:35,081 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:16:35,081 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:16:35,081 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:16:35,081 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:16:35,081 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:16:35,082 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:16:35,082 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:16:35,082 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:16:35,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:16:36,632 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10240
[2019-09-07 16:16:36,633 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:16:36,641 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 16:16:36,644 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:16:36,655 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:16:36,661 INFO  L82        PathProgramCache]: Analyzing trace with hash 1005068829, now seen corresponding path program 1 times
[2019-09-07 16:16:36,663 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:16:36,664 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:16:36,707 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:16:36,707 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:16:36,707 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:16:43,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:18:03,842 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 16:18:03,845 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:18:03,846 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 16:18:03,869 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 16:18:03,884 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 16:18:03,887 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 16:18:03,890 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 16:18:59,995 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:18:59,995 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 16:18:59,996 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 16:18:59,997 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10239
[2019-09-07 16:19:00,024 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:19:00,149 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 16:19:00,150 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 16:19:00,176 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 16:19:00,231 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 16:19:00,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 16:19:00,891 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:19:00,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40372 transitions.
[2019-09-07 16:19:00,956 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 40372 transitions. Word has length 10239
[2019-09-07 16:19:00,975 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:19:00,975 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 40372 transitions.
[2019-09-07 16:19:00,976 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 16:19:00,976 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 40372 transitions.
[2019-09-07 16:19:01,701 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10251
[2019-09-07 16:19:01,701 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:19:01,707 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:19:01,708 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:19:01,708 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:19:01,712 INFO  L82        PathProgramCache]: Analyzing trace with hash 22419003, now seen corresponding path program 1 times
[2019-09-07 16:19:01,712 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:19:01,712 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:19:01,715 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:19:01,715 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:19:01,716 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:19:02,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:19:33,650 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:19:33,651 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:19:33,652 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:19:33,662 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:19:33,662 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:19:33,663 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:19:33,663 INFO  L87              Difference]: Start difference. First operand 20756 states and 40372 transitions. Second operand 6 states.
[2019-09-07 16:20:47,160 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:20:47,161 INFO  L93              Difference]: Finished difference Result 63331 states and 123199 transitions.
[2019-09-07 16:20:47,176 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:20:47,177 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10250
[2019-09-07 16:20:47,177 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:20:47,334 INFO  L225             Difference]: With dead ends: 63331
[2019-09-07 16:20:47,334 INFO  L226             Difference]: Without dead ends: 42581
[2019-09-07 16:20:47,375 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 16:20:47,423 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42581 states.
[2019-09-07 16:20:48,338 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42581 to 42299.
[2019-09-07 16:20:48,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42299 states.
[2019-09-07 16:20:48,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42299 states to 42299 states and 80707 transitions.
[2019-09-07 16:20:48,424 INFO  L78                 Accepts]: Start accepts. Automaton has 42299 states and 80707 transitions. Word has length 10250
[2019-09-07 16:20:48,426 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:20:48,426 INFO  L475      AbstractCegarLoop]: Abstraction has 42299 states and 80707 transitions.
[2019-09-07 16:20:48,426 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:20:48,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 42299 states and 80707 transitions.
[2019-09-07 16:20:52,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10260
[2019-09-07 16:20:52,242 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:20:52,249 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:20:52,249 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:20:52,250 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:20:52,253 INFO  L82        PathProgramCache]: Analyzing trace with hash 285855617, now seen corresponding path program 1 times
[2019-09-07 16:20:52,253 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:20:52,253 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:20:52,255 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:20:52,256 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:20:52,257 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:20:53,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:22:18,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:22:18,222 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:22:18,223 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 16:22:18,240 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:22:21,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:22:21,295 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12283 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 16:22:21,549 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:23:21,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:23:21,089 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:23:21,092 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8
[2019-09-07 16:23:21,133 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 8 states
[2019-09-07 16:23:21,133 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2019-09-07 16:23:21,134 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2019-09-07 16:23:21,134 INFO  L87              Difference]: Start difference. First operand 42299 states and 80707 transitions. Second operand 8 states.
[2019-09-07 16:25:19,681 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:25:19,681 INFO  L93              Difference]: Finished difference Result 172636 states and 341978 transitions.
[2019-09-07 16:25:19,682 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2019-09-07 16:25:19,682 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 10259
[2019-09-07 16:25:19,701 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:25:20,243 INFO  L225             Difference]: With dead ends: 172636
[2019-09-07 16:25:20,243 INFO  L226             Difference]: Without dead ends: 130343
[2019-09-07 16:25:20,330 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10326 GetRequests, 10313 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210
[2019-09-07 16:25:20,450 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 130343 states.
[2019-09-07 16:25:26,394 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 130343 to 129412.
[2019-09-07 16:25:26,395 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 129412 states.
[2019-09-07 16:25:26,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 129412 states to 129412 states and 216144 transitions.
[2019-09-07 16:25:26,668 INFO  L78                 Accepts]: Start accepts. Automaton has 129412 states and 216144 transitions. Word has length 10259
[2019-09-07 16:25:26,678 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:25:26,678 INFO  L475      AbstractCegarLoop]: Abstraction has 129412 states and 216144 transitions.
[2019-09-07 16:25:26,678 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2019-09-07 16:25:26,678 INFO  L276                IsEmpty]: Start isEmpty. Operand 129412 states and 216144 transitions.
[2019-09-07 16:25:27,534 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10355
[2019-09-07 16:25:27,535 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:25:27,540 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:25:27,541 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:25:27,541 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:25:27,544 INFO  L82        PathProgramCache]: Analyzing trace with hash -1439130101, now seen corresponding path program 1 times
[2019-09-07 16:25:27,544 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:25:27,544 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:25:27,546 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:27,546 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:25:27,546 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:25:28,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:26:05,717 INFO  L134       CoverageAnalysis]: Checked inductivity of 112 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:26:05,717 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:26:05,718 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:26:05,723 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:26:05,723 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:26:05,724 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:26:05,724 INFO  L87              Difference]: Start difference. First operand 129412 states and 216144 transitions. Second operand 6 states.
[2019-09-07 16:27:17,394 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:27:17,394 INFO  L93              Difference]: Finished difference Result 327523 states and 562757 transitions.
[2019-09-07 16:27:17,395 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:27:17,395 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10354
[2019-09-07 16:27:17,395 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:27:18,016 INFO  L225             Difference]: With dead ends: 327523
[2019-09-07 16:27:18,016 INFO  L226             Difference]: Without dead ends: 198117
[2019-09-07 16:27:18,237 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 16:27:18,440 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 198117 states.
[2019-09-07 16:27:21,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 198117 to 197939.
[2019-09-07 16:27:21,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 197939 states.
[2019-09-07 16:27:21,864 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197939 states to 197939 states and 298417 transitions.
[2019-09-07 16:27:21,865 INFO  L78                 Accepts]: Start accepts. Automaton has 197939 states and 298417 transitions. Word has length 10354
[2019-09-07 16:27:21,867 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:27:21,867 INFO  L475      AbstractCegarLoop]: Abstraction has 197939 states and 298417 transitions.
[2019-09-07 16:27:21,867 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:27:21,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 197939 states and 298417 transitions.
[2019-09-07 16:27:22,636 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10363
[2019-09-07 16:27:22,636 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:27:22,640 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:27:22,640 INFO  L418      AbstractCegarLoop]: === Iteration 5 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:27:22,641 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:27:22,643 INFO  L82        PathProgramCache]: Analyzing trace with hash -605475905, now seen corresponding path program 1 times
[2019-09-07 16:27:22,644 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:27:22,644 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:27:22,646 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:27:22,646 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:27:22,646 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:27:28,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat