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_label36.c


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


This is Ultimate 0.1.24-112bae1
[2019-09-07 16:02:17,417 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-09-07 16:02:17,419 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-07 16:02:17,431 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-07 16:02:17,432 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-07 16:02:17,433 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-09-07 16:02:17,434 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-09-07 16:02:17,436 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-09-07 16:02:17,438 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-09-07 16:02:17,439 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-09-07 16:02:17,441 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-09-07 16:02:17,442 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-09-07 16:02:17,442 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-09-07 16:02:17,443 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-09-07 16:02:17,445 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-09-07 16:02:17,446 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-09-07 16:02:17,447 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-07 16:02:17,448 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-07 16:02:17,450 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-07 16:02:17,453 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-07 16:02:17,455 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-09-07 16:02:17,456 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-09-07 16:02:17,457 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-09-07 16:02:17,458 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-09-07 16:02:17,461 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-09-07 16:02:17,461 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-09-07 16:02:17,462 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-09-07 16:02:17,463 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-09-07 16:02:17,463 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-09-07 16:02:17,464 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-09-07 16:02:17,465 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-09-07 16:02:17,466 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-09-07 16:02:17,467 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-09-07 16:02:17,469 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-09-07 16:02:17,469 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-09-07 16:02:17,470 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-09-07 16:02:17,470 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-09-07 16:02:17,470 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-09-07 16:02:17,472 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-09-07 16:02:17,473 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 16:02:17,499 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-09-07 16:02:17,500 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-07 16:02:17,501 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-07 16:02:17,503 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-09-07 16:02:17,503 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-09-07 16:02:17,503 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-07 16:02:17,503 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-09-07 16:02:17,504 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-09-07 16:02:17,504 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-09-07 16:02:17,504 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-09-07 16:02:17,505 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-09-07 16:02:17,505 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-07 16:02:17,505 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-09-07 16:02:17,505 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-09-07 16:02:17,506 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-09-07 16:02:17,506 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-09-07 16:02:17,506 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-09-07 16:02:17,506 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-07 16:02:17,506 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-09-07 16:02:17,507 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-09-07 16:02:17,507 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-09-07 16:02:17,507 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-07 16:02:17,508 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-07 16:02:17,509 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-09-07 16:02:17,509 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-07 16:02:17,509 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-09-07 16:02:17,509 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-07 16:02:17,510 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-07 16:02:17,510 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-07 16:02:17,561 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-07 16:02:17,575 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-07 16:02:17,581 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-07 16:02:17,583 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-09-07 16:02:17,583 INFO  L275        PluginConnector]: CDTParser initialized
[2019-09-07 16:02:17,584 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem07_label36.c
[2019-09-07 16:02:17,656 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58980c6a/b439661a9d734c00bea49b09dbd5ced7/FLAGae79a3211
[2019-09-07 16:02:19,775 INFO  L306              CDTParser]: Found 1 translation units.
[2019-09-07 16:02:19,775 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem07_label36.c
[2019-09-07 16:02:19,914 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58980c6a/b439661a9d734c00bea49b09dbd5ced7/FLAGae79a3211
[2019-09-07 16:02:20,297 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a58980c6a/b439661a9d734c00bea49b09dbd5ced7
[2019-09-07 16:02:20,308 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-07 16:02:20,310 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-07 16:02:20,314 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-07 16:02:20,314 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-07 16:02:20,318 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-07 16:02:20,319 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:02:20" (1/1) ...
[2019-09-07 16:02:20,322 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18230a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:20, skipping insertion in model container
[2019-09-07 16:02:20,323 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 04:02:20" (1/1) ...
[2019-09-07 16:02:20,331 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-09-07 16:02:21,787 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-09-07 16:02:32,978 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:02:32,983 INFO  L188         MainTranslator]: Completed pre-run
[2019-09-07 16:02:43,870 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-09-07 16:02:44,447 INFO  L192         MainTranslator]: Completed translation
[2019-09-07 16:02:44,448 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44 WrapperNode
[2019-09-07 16:02:44,448 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-07 16:02:44,449 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-07 16:02:44,450 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-07 16:02:44,450 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-09-07 16:02:44,460 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:44,461 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:44,851 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:44,852 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:46,191 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:46,385 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:46,938 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (1/1) ...
[2019-09-07 16:02:47,343 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-07 16:02:47,344 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-07 16:02:47,344 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-09-07 16:02:47,344 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-09-07 16:02:47,345 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (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 16:02:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-07 16:02:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-07 16:02:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-09-07 16:02:47,406 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-09-07 16:02:47,407 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-09-07 16:02:47,408 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-09-07 16:02:47,408 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output5
[2019-09-07 16:02:47,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output6
[2019-09-07 16:02:47,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output7
[2019-09-07 16:02:47,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output8
[2019-09-07 16:02:47,409 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output9
[2019-09-07 16:02:47,410 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output10
[2019-09-07 16:02:47,411 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output11
[2019-09-07 16:02:47,411 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output12
[2019-09-07 16:02:47,412 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output13
[2019-09-07 16:02:47,412 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output14
[2019-09-07 16:02:47,414 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output15
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output16
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output17
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output18
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output19
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output20
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output21
[2019-09-07 16:02:47,415 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output22
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output23
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output24
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output25
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output26
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output27
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output28
[2019-09-07 16:02:47,416 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output29
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output30
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output31
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output32
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output33
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output34
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output35
[2019-09-07 16:02:47,417 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output36
[2019-09-07 16:02:47,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output37
[2019-09-07 16:02:47,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output38
[2019-09-07 16:02:47,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output39
[2019-09-07 16:02:47,418 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output40
[2019-09-07 16:02:47,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output41
[2019-09-07 16:02:47,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output42
[2019-09-07 16:02:47,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output43
[2019-09-07 16:02:47,419 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output44
[2019-09-07 16:02:47,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output45
[2019-09-07 16:02:47,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output46
[2019-09-07 16:02:47,420 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-09-07 16:02:47,420 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output5
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output6
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output7
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output8
[2019-09-07 16:02:47,421 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output9
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output10
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output11
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output12
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output13
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output14
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output15
[2019-09-07 16:02:47,422 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output16
[2019-09-07 16:02:47,423 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output17
[2019-09-07 16:02:47,423 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output18
[2019-09-07 16:02:47,423 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output19
[2019-09-07 16:02:47,423 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output20
[2019-09-07 16:02:47,423 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output21
[2019-09-07 16:02:47,424 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output22
[2019-09-07 16:02:47,424 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output23
[2019-09-07 16:02:47,424 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output24
[2019-09-07 16:02:47,424 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output25
[2019-09-07 16:02:47,425 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output26
[2019-09-07 16:02:47,425 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output27
[2019-09-07 16:02:47,425 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output28
[2019-09-07 16:02:47,425 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output29
[2019-09-07 16:02:47,425 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output30
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output31
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output32
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output33
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output34
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output35
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output36
[2019-09-07 16:02:47,426 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output37
[2019-09-07 16:02:47,427 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output38
[2019-09-07 16:02:47,428 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output39
[2019-09-07 16:02:47,428 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output40
[2019-09-07 16:02:47,428 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output41
[2019-09-07 16:02:47,429 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output42
[2019-09-07 16:02:47,429 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output43
[2019-09-07 16:02:47,429 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output44
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output45
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output46
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-07 16:02:47,430 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-07 16:03:40,873 INFO  L278             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-07 16:03:40,873 INFO  L283             CfgBuilder]: Removed 1 assume(true) statements.
[2019-09-07 16:03:40,881 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:03:40 BoogieIcfgContainer
[2019-09-07 16:03:40,881 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-07 16:03:40,882 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-07 16:03:40,882 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-09-07 16:03:40,885 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-09-07 16:03:40,886 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 04:02:20" (1/3) ...
[2019-09-07 16:03:40,886 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1baf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:03:40, skipping insertion in model container
[2019-09-07 16:03:40,887 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 04:02:44" (2/3) ...
[2019-09-07 16:03:40,887 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1baf14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 04:03:40, skipping insertion in model container
[2019-09-07 16:03:40,887 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 04:03:40" (3/3) ...
[2019-09-07 16:03:40,889 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem07_label36.c
[2019-09-07 16:03:40,899 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-07 16:03:40,912 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-07 16:03:40,929 INFO  L252      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-07 16:03:41,011 INFO  L128   ementStrategyFactory]: Using default assertion order modulation
[2019-09-07 16:03:41,012 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2019-09-07 16:03:41,012 INFO  L378      AbstractCegarLoop]: Hoare is true
[2019-09-07 16:03:41,013 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-07 16:03:41,013 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-07 16:03:41,013 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-07 16:03:41,013 INFO  L382      AbstractCegarLoop]: Difference is false
[2019-09-07 16:03:41,013 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-07 16:03:41,014 INFO  L388      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-07 16:03:41,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 10446 states.
[2019-09-07 16:03:41,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10189
[2019-09-07 16:03:41,964 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:03:41,972 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 16:03:41,978 INFO  L418      AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:03:41,986 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:03:41,992 INFO  L82        PathProgramCache]: Analyzing trace with hash 1977380570, now seen corresponding path program 1 times
[2019-09-07 16:03:41,994 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:03:41,995 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:03:42,051 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:03:42,051 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:03:42,051 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:03:44,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:05:23,195 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 16:05:23,198 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:05:23,200 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-07 16:05:23,220 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-07 16:05:23,234 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-07 16:05:23,235 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 16:05:23,237 INFO  L87              Difference]: Start difference. First operand 10446 states. Second operand 4 states.
[2019-09-07 16:06:47,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:06:47,400 INFO  L93              Difference]: Finished difference Result 41642 states and 82628 transitions.
[2019-09-07 16:06:47,405 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-09-07 16:06:47,407 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10188
[2019-09-07 16:06:47,433 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:06:47,645 INFO  L225             Difference]: With dead ends: 41642
[2019-09-07 16:06:47,645 INFO  L226             Difference]: Without dead ends: 31130
[2019-09-07 16:06:47,689 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2019-09-07 16:06:47,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31130 states.
[2019-09-07 16:06:48,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31130 to 20756.
[2019-09-07 16:06:48,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20756 states.
[2019-09-07 16:06:48,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 38416 transitions.
[2019-09-07 16:06:48,370 INFO  L78                 Accepts]: Start accepts. Automaton has 20756 states and 38416 transitions. Word has length 10188
[2019-09-07 16:06:48,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:06:48,390 INFO  L475      AbstractCegarLoop]: Abstraction has 20756 states and 38416 transitions.
[2019-09-07 16:06:48,390 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-07 16:06:48,390 INFO  L276                IsEmpty]: Start isEmpty. Operand 20756 states and 38416 transitions.
[2019-09-07 16:06:49,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10197
[2019-09-07 16:06:49,403 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:06:49,409 INFO  L399         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2019-09-07 16:06:49,410 INFO  L418      AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:06:49,411 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:06:49,416 INFO  L82        PathProgramCache]: Analyzing trace with hash -1127914610, now seen corresponding path program 1 times
[2019-09-07 16:06:49,416 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:06:49,416 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:06:49,419 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:06:49,420 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:06:49,420 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:06:51,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:08:37,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:08:37,100 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2019-09-07 16:08:37,100 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 16:08:37,117 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:08:40,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:08:40,424 INFO  L256         TraceCheckSpWp]: Trace formula consists of 12219 conjuncts, 94 conjunts are in the unsatisfiable core
[2019-09-07 16:08:40,697 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-09-07 16:09:46,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:09:46,108 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2019-09-07 16:09:46,111 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7
[2019-09-07 16:09:46,152 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-09-07 16:09:46,152 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-09-07 16:09:46,152 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2019-09-07 16:09:46,153 INFO  L87              Difference]: Start difference. First operand 20756 states and 38416 transitions. Second operand 7 states.
[2019-09-07 16:12:04,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:12:04,388 INFO  L93              Difference]: Finished difference Result 84122 states and 157040 transitions.
[2019-09-07 16:12:04,388 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2019-09-07 16:12:04,388 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10196
[2019-09-07 16:12:04,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:12:04,722 INFO  L225             Difference]: With dead ends: 84122
[2019-09-07 16:12:04,723 INFO  L226             Difference]: Without dead ends: 63372
[2019-09-07 16:12:04,787 INFO  L628         BasicCegarLoop]: 0 DeclaredPredicates, 10257 GetRequests, 10248 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2019-09-07 16:12:04,865 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63372 states.
[2019-09-07 16:12:06,045 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63372 to 63348.
[2019-09-07 16:12:06,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 63348 states.
[2019-09-07 16:12:06,185 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63348 states to 63348 states and 92286 transitions.
[2019-09-07 16:12:06,186 INFO  L78                 Accepts]: Start accepts. Automaton has 63348 states and 92286 transitions. Word has length 10196
[2019-09-07 16:12:06,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:12:06,207 INFO  L475      AbstractCegarLoop]: Abstraction has 63348 states and 92286 transitions.
[2019-09-07 16:12:06,207 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-09-07 16:12:06,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 63348 states and 92286 transitions.
[2019-09-07 16:12:07,800 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10239
[2019-09-07 16:12:07,801 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:12:07,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:12:07,809 INFO  L418      AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:12:07,810 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:12:07,816 INFO  L82        PathProgramCache]: Analyzing trace with hash 1202349306, now seen corresponding path program 1 times
[2019-09-07 16:12:07,816 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:12:07,816 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:12:07,824 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:12:07,824 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:12:07,825 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:12:08,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:12:42,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:12:42,129 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:12:42,131 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:12:42,136 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:12:42,137 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:12:42,137 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:12:42,137 INFO  L87              Difference]: Start difference. First operand 63348 states and 92286 transitions. Second operand 6 states.
[2019-09-07 16:14:00,353 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-07 16:14:00,354 INFO  L93              Difference]: Finished difference Result 150447 states and 221027 transitions.
[2019-09-07 16:14:00,355 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-09-07 16:14:00,356 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 10238
[2019-09-07 16:14:00,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-07 16:14:00,681 INFO  L225             Difference]: With dead ends: 150447
[2019-09-07 16:14:00,682 INFO  L226             Difference]: Without dead ends: 87105
[2019-09-07 16:14:00,797 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 16:14:00,892 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87105 states.
[2019-09-07 16:14:02,148 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87105 to 86291.
[2019-09-07 16:14:02,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 86291 states.
[2019-09-07 16:14:02,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86291 states to 86291 states and 119986 transitions.
[2019-09-07 16:14:02,314 INFO  L78                 Accepts]: Start accepts. Automaton has 86291 states and 119986 transitions. Word has length 10238
[2019-09-07 16:14:02,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-09-07 16:14:02,316 INFO  L475      AbstractCegarLoop]: Abstraction has 86291 states and 119986 transitions.
[2019-09-07 16:14:02,316 INFO  L476      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-09-07 16:14:02,317 INFO  L276                IsEmpty]: Start isEmpty. Operand 86291 states and 119986 transitions.
[2019-09-07 16:14:03,031 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10280
[2019-09-07 16:14:03,032 INFO  L391         BasicCegarLoop]: Found error trace
[2019-09-07 16:14:03,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:14:03,037 INFO  L418      AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-07 16:14:03,037 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-09-07 16:14:03,039 INFO  L82        PathProgramCache]: Analyzing trace with hash 1199804636, now seen corresponding path program 1 times
[2019-09-07 16:14:03,039 INFO  L223   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-07 16:14:03,039 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-07 16:14:03,041 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:14:03,041 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-07 16:14:03,041 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-07 16:14:03,571 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-07 16:14:43,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 88 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-07 16:14:43,049 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-07 16:14:43,050 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-09-07 16:14:43,056 INFO  L454      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-09-07 16:14:43,056 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-09-07 16:14:43,056 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-09-07 16:14:43,056 INFO  L87              Difference]: Start difference. First operand 86291 states and 119986 transitions. Second operand 6 states.