java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-programs/Problem101_label18.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 23:51:19,103 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 23:51:19,105 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 23:51:19,118 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 23:51:19,119 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 23:51:19,120 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 23:51:19,121 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 23:51:19,123 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 23:51:19,125 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 23:51:19,126 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 23:51:19,127 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 23:51:19,128 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 23:51:19,129 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 23:51:19,130 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 23:51:19,130 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 23:51:19,132 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 23:51:19,132 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 23:51:19,133 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 23:51:19,135 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 23:51:19,137 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 23:51:19,139 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 23:51:19,142 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 23:51:19,143 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 23:51:19,144 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 23:51:19,148 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 23:51:19,148 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 23:51:19,149 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 23:51:19,150 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 23:51:19,150 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 23:51:19,151 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 23:51:19,152 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 23:51:19,155 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 23:51:19,156 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 23:51:19,157 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 23:51:19,157 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-09-07 23:51:19,161 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 23:51:19,161 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 23:51:19,164 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 23:51:19,166 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-09-07 23:51:19,193 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 23:51:19,193 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 23:51:19,195 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 23:51:19,196 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 23:51:19,196 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 23:51:19,196 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 23:51:19,196 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 23:51:19,197 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 23:51:19,197 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 23:51:19,197 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 23:51:19,198 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 23:51:19,198 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 23:51:19,199 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 23:51:19,199 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 23:51:19,199 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 23:51:19,199 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 23:51:19,200 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 23:51:19,200 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 23:51:19,200 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 23:51:19,200 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 23:51:19,201 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 23:51:19,201 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 23:51:19,201 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 23:51:19,201 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 23:51:19,202 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 23:51:19,202 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 23:51:19,202 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 23:51:19,202 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 23:51:19,202 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 23:51:19,259 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 23:51:19,276 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 23:51:19,280 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 23:51:19,281 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 23:51:19,282 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 23:51:19,282 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label18.c
[2019-09-07 23:51:19,366 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b/FLAG4e34b4104
[2019-09-07 23:51:21,945 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 23:51:21,946 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label18.c
[2019-09-07 23:51:22,151 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b/FLAG4e34b4104
[2019-09-07 23:51:22,404 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f254a0654/4df1a95ed07a467f86900821df92f57b
[2019-09-07 23:51:22,420 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 23:51:22,421 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 23:51:22,423 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 23:51:22,423 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 23:51:22,426 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 23:51:22,430 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:51:22" (1/1) ...
[2019-09-07 23:51:22,433 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147ffb18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:22, skipping insertion in model container
[2019-09-07 23:51:22,433 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:51:22" (1/1) ...
[2019-09-07 23:51:22,441 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 23:51:23,714 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 23:51:37,773 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:51:37,778 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 23:51:47,202 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 23:51:47,923 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 23:51:47,924 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47 WrapperNode
[2019-09-07 23:51:47,924 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 23:51:47,925 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 23:51:47,925 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 23:51:47,925 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 23:51:47,935 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:47,936 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:49,037 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:49,038 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:50,377 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:50,601 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:51,005 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
[2019-09-07 23:51:51,494 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 23:51:51,495 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 23:51:51,495 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 23:51:51,495 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 23:51:51,496 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 23:51:51,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 23:51:51,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 23:51:51,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 23:51:51,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 23:51:51,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 23:51:51,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 23:51:51,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 23:51:51,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 23:51:51,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 23:51:51,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 23:51:51,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 23:51:51,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 23:51:51,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 23:51:51,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 23:51:51,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 23:51:51,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 23:51:51,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 23:51:51,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 23:51:51,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 23:51:51,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 23:51:51,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 23:51:51,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 23:51:51,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 23:51:51,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 23:51:51,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 23:51:51,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 23:51:51,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 23:51:51,591 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 23:51:51,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 23:51:51,592 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 23:51:51,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 23:51:51,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 23:51:51,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 23:51:51,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 23:51:51,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 23:51:51,594 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 23:51:51,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 23:51:51,595 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 23:51:51,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 23:51:51,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 23:51:51,595 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 23:51:51,596 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 23:51:51,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 23:51:51,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 23:51:51,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 23:51:51,597 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 23:51:51,598 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 23:51:51,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 23:51:51,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 23:51:51,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 23:51:51,599 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 23:51:51,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 23:51:51,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 23:51:51,600 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 23:51:51,601 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 23:51:51,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 23:51:51,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 23:51:51,602 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 23:51:51,603 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 23:51:51,603 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 23:51:51,603 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 23:51:51,604 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 23:51:51,605 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 23:51:51,605 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 23:51:51,605 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 23:51:51,605 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 23:51:51,606 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 23:52:39,356 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 23:52:39,357 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 23:52:39,363 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:52:39 BoogieIcfgContainer
[2019-09-07 23:52:39,363 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 23:52:39,364 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 23:52:39,364 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 23:52:39,366 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 23:52:39,366 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:51:22" (1/3) ...
[2019-09-07 23:52:39,367 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2a6416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:52:39, skipping insertion in model container
[2019-09-07 23:52:39,367 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:51:47" (2/3) ...
[2019-09-07 23:52:39,368 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f2a6416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:52:39, skipping insertion in model container
[2019-09-07 23:52:39,368 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:52:39" (3/3) ...
[2019-09-07 23:52:39,370 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem101_label18.c
[2019-09-07 23:52:39,378 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 23:52:39,390 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 23:52:39,407 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 23:52:39,474 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 23:52:39,475 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 23:52:39,475 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 23:52:39,475 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 23:52:39,476 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 23:52:39,476 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 23:52:39,476 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 23:52:39,476 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 23:52:39,476 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 23:52:39,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 23:52:41,151 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10194
[2019-09-07 23:52:41,151 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:52:41,160 INFO  L399         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 23:52:41,163 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:52:41,173 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:52:41,180 INFO  L82        PathProgramCache]: Analyzing trace with hash 1793868805, now seen corresponding path program 1 times
[2019-09-07 23:52:41,182 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:52:41,183 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:52:41,229 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:52:41,229 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:52:41,230 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:52:43,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:54:20,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:54:20,612 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:54:20,614 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-07 23:54:20,638 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-07 23:54:20,652 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-07 23:54:20,653 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:54:20,655 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 3 states.
[2019-09-07 23:55:20,367 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:55:20,368 INFO  L93              Difference]: Finished difference Result 31264 states and 61877 transitions.
[2019-09-07 23:55:20,368 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-09-07 23:55:20,370 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10193
[2019-09-07 23:55:20,395 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:55:20,595 INFO  L225             Difference]: With dead ends: 31264
[2019-09-07 23:55:20,596 INFO  L226             Difference]: Without dead ends: 20756
[2019-09-07 23:55:20,650 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 48 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-07 23:55:20,727 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20756 states.
[2019-09-07 23:55:21,376 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756.
[2019-09-07 23:55:21,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 23:55:21,473 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 39358 transitions.
[2019-09-07 23:55:21,475 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 39358 transitions. Word has length 10193
[2019-09-07 23:55:21,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:55:21,506 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 39358 transitions.
[2019-09-07 23:55:21,506 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-07 23:55:21,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 39358 transitions.
[2019-09-07 23:55:22,560 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10205
[2019-09-07 23:55:22,560 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:55:22,567 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 23:55:22,568 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:55:22,568 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:55:22,573 INFO  L82        PathProgramCache]: Analyzing trace with hash 1624284323, now seen corresponding path program 1 times
[2019-09-07 23:55:22,573 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:55:22,573 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:55:22,577 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:55:22,577 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:55:22,577 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:55:23,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:55:58,533 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 23:55:58,533 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:55:58,534 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 23:55:58,545 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 23:55:58,545 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 23:55:58,546 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 23:55:58,546 INFO  L87              Difference]: Start difference. First operand 20756 states and 39358 transitions. Second operand 6 states.
[2019-09-07 23:57:12,586 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:57:12,586 INFO  L93              Difference]: Finished difference Result 63316 states and 120135 transitions.
[2019-09-07 23:57:12,587 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 23:57:12,587 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10204
[2019-09-07 23:57:12,587 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:57:12,754 INFO  L225             Difference]: With dead ends: 63316
[2019-09-07 23:57:12,754 INFO  L226             Difference]: Without dead ends: 42566
[2019-09-07 23:57:12,800 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 23:57:12,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42566 states.
[2019-09-07 23:57:13,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42566 to 42284.
[2019-09-07 23:57:13,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42284 states.
[2019-09-07 23:57:13,843 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42284 states to 42284 states and 78731 transitions.
[2019-09-07 23:57:13,844 INFO  L78                 Accepts]: Start accepts. Automaton has 42284 states and 78731 transitions. Word has length 10204
[2019-09-07 23:57:13,846 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:57:13,846 INFO  L475      AbstractCegarLoop]: Abstraction has 42284 states and 78731 transitions.
[2019-09-07 23:57:13,847 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 23:57:13,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 42284 states and 78731 transitions.
[2019-09-07 23:57:17,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10232
[2019-09-07 23:57:17,735 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:57:17,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 23:57:17,741 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:57:17,741 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:57:17,744 INFO  L82        PathProgramCache]: Analyzing trace with hash 1280508237, now seen corresponding path program 1 times
[2019-09-07 23:57:17,744 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:57:17,744 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:57:17,747 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:57:17,747 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:57:17,747 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:57:18,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:57:48,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:57:48,961 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 23:57:48,962 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 23:57:48,969 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 23:57:48,969 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 23:57:48,969 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 23:57:48,969 INFO  L87              Difference]: Start difference. First operand 42284 states and 78731 transitions. Second operand 6 states.
[2019-09-07 23:59:04,137 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 23:59:04,137 INFO  L93              Difference]: Finished difference Result 106405 states and 197995 transitions.
[2019-09-07 23:59:04,138 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 23:59:04,138 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10231
[2019-09-07 23:59:04,138 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 23:59:04,303 INFO  L225             Difference]: With dead ends: 106405
[2019-09-07 23:59:04,304 INFO  L226             Difference]: Without dead ends: 64127
[2019-09-07 23:59:04,362 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2019-09-07 23:59:04,424 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64127 states.
[2019-09-07 23:59:05,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64127 to 64119.
[2019-09-07 23:59:05,631 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 64119 states.
[2019-09-07 23:59:05,750 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64119 states to 64119 states and 100798 transitions.
[2019-09-07 23:59:05,751 INFO  L78                 Accepts]: Start accepts. Automaton has 64119 states and 100798 transitions. Word has length 10231
[2019-09-07 23:59:05,753 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 23:59:05,753 INFO  L475      AbstractCegarLoop]: Abstraction has 64119 states and 100798 transitions.
[2019-09-07 23:59:05,753 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 23:59:05,753 INFO  L276                IsEmpty]: Start isEmpty. Operand 64119 states and 100798 transitions.
[2019-09-07 23:59:06,408 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10240
[2019-09-07 23:59:06,408 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 23:59:06,414 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 23:59:06,414 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 23:59:06,415 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 23:59:06,418 INFO  L82        PathProgramCache]: Analyzing trace with hash 655598617, now seen corresponding path program 1 times
[2019-09-07 23:59:06,419 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 23:59:06,419 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 23:59:06,421 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:06,422 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:59:06,422 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 23:59:06,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:59:41,683 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 23:59:41,683 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 23:59:41,684 INFO  L223   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2019-09-07 23:59:41,710 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 23:59:44,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 23:59:44,920 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12381 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 23:59:45,147 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-08 00:00:53,074 INFO  L134       CoverageAnalysis]: Checked inductivity of 48 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2019-09-08 00:00:53,095 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-08 00:00:53,099 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-08 00:00:53,144 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-08 00:00:53,145 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-08 00:00:53,145 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2019-09-08 00:00:53,146 INFO  L87              Difference]: Start difference. First operand 64119 states and 100798 transitions. Second operand 7 states.
[2019-09-08 00:03:30,123 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 00:03:30,123 INFO  L93              Difference]: Finished difference Result 329584 states and 554932 transitions.
[2019-09-08 00:03:30,128 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2019-09-08 00:03:30,129 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10239
[2019-09-08 00:03:30,129 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 00:03:31,196 INFO  L225             Difference]: With dead ends: 329584
[2019-09-08 00:03:31,196 INFO  L226             Difference]: Without dead ends: 265471
[2019-09-08 00:03:31,373 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10262 GetRequests, 10248 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240
[2019-09-08 00:03:31,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 265471 states.
[2019-09-08 00:03:41,807 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 265471 to 265427.
[2019-09-08 00:03:41,808 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 265427 states.
[2019-09-08 00:03:42,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 265427 states to 265427 states and 380583 transitions.
[2019-09-08 00:03:42,295 INFO  L78                 Accepts]: Start accepts. Automaton has 265427 states and 380583 transitions. Word has length 10239
[2019-09-08 00:03:42,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-08 00:03:42,299 INFO  L475      AbstractCegarLoop]: Abstraction has 265427 states and 380583 transitions.
[2019-09-08 00:03:42,300 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-09-08 00:03:42,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 265427 states and 380583 transitions.