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/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:45:51,388 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:45:51,390 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 19:45:51,403 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 19:45:51,403 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 19:45:51,404 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 19:45:51,406 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 19:45:51,408 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 19:45:51,409 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 19:45:51,410 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 19:45:51,411 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 19:45:51,412 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 19:45:51,413 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 19:45:51,414 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 19:45:51,415 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 19:45:51,416 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:45:51,417 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:45:51,418 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:45:51,420 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 19:45:51,422 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 19:45:51,424 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 19:45:51,425 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 19:45:51,426 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 19:45:51,427 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 19:45:51,429 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 19:45:51,429 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 19:45:51,430 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 19:45:51,431 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 19:45:51,431 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 19:45:51,432 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 19:45:51,433 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 19:45:51,433 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 19:45:51,434 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 19:45:51,435 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 19:45:51,436 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 19:45:51,436 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 19:45:51,437 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 19:45:51,437 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 19:45:51,437 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 19:45:51,438 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 19:45:51,439 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 19:45:51,440 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
[2019-10-13 19:45:51,453 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-13 19:45:51,454 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:45:51,455 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:45:51,455 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-13 19:45:51,455 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-13 19:45:51,456 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:45:51,456 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-13 19:45:51,456 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-13 19:45:51,456 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-13 19:45:51,456 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-13 19:45:51,457 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:45:51,457 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:45:51,457 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:45:51,457 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-13 19:45:51,457 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-13 19:45:51,458 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-13 19:45:51,458 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:45:51,458 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:45:51,458 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-13 19:45:51,458 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-13 19:45:51,459 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-13 19:45:51,459 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:45:51,459 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:45:51,459 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:45:51,460 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:45:51,460 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-13 19:45:51,460 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:45:51,460 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:45:51,460 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-13 19:45:51,786 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:45:51,802 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:45:51,807 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:45:51,809 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-13 19:45:51,809 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-13 19:45:51,810 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:51,889 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9183e65ab/1f733645d1b145e582b4a476f623f128/FLAG12f00f32d
[2019-10-13 19:45:52,476 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-13 19:45:52,479 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:52,497 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9183e65ab/1f733645d1b145e582b4a476f623f128/FLAG12f00f32d
[2019-10-13 19:45:52,735 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9183e65ab/1f733645d1b145e582b4a476f623f128
[2019-10-13 19:45:52,747 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:45:52,748 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:45:52,750 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:45:52,750 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:45:52,754 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:45:52,755 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:52" (1/1) ...
[2019-10-13 19:45:52,758 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247f10a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:52, skipping insertion in model container
[2019-10-13 19:45:52,758 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:45:52" (1/1) ...
[2019-10-13 19:45:52,766 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-13 19:45:52,858 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:45:53,576 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:45:53,601 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-13 19:45:54,039 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:45:54,061 INFO  L192         MainTranslator]: Completed translation
[2019-10-13 19:45:54,062 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54 WrapperNode
[2019-10-13 19:45:54,062 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:45:54,063 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:45:54,063 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:45:54,063 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:45:54,075 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,075 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,096 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,097 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,145 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,183 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,189 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (1/1) ...
[2019-10-13 19:45:54,199 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:45:54,200 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:45:54,200 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:45:54,200 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:45:54,201 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (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
[2019-10-13 19:45:54,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:45:54,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:45:54,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:45:54,286 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:45:54,287 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-13 19:45:54,288 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-10-13 19:45:54,288 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-13 19:45:54,288 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-13 19:45:54,288 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 19:45:54,289 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-13 19:45:54,289 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-13 19:45:54,289 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-13 19:45:54,290 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-13 19:45:54,290 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-13 19:45:54,291 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-13 19:45:54,291 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-13 19:45:54,294 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:45:54,295 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:45:54,295 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:45:56,069 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:45:56,070 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-13 19:45:56,072 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:56 BoogieIcfgContainer
[2019-10-13 19:45:56,072 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:45:56,073 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:45:56,073 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:45:56,077 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:45:56,077 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:45:52" (1/3) ...
[2019-10-13 19:45:56,078 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7828a76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:56, skipping insertion in model container
[2019-10-13 19:45:56,078 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:45:54" (2/3) ...
[2019-10-13 19:45:56,079 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7828a76b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:45:56, skipping insertion in model container
[2019-10-13 19:45:56,079 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:45:56" (3/3) ...
[2019-10-13 19:45:56,081 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-13 19:45:56,092 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:45:56,101 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-13 19:45:56,113 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-13 19:45:56,154 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:45:56,155 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-13 19:45:56,155 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:45:56,155 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:45:56,155 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:45:56,155 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-13 19:45:56,155 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:45:56,155 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:45:56,184 INFO  L276                IsEmpty]: Start isEmpty. Operand 423 states.
[2019-10-13 19:45:56,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:45:56,203 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:45:56,204 INFO  L380         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]
[2019-10-13 19:45:56,207 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:45:56,213 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:45:56,214 INFO  L82        PathProgramCache]: Analyzing trace with hash 431419903, now seen corresponding path program 1 times
[2019-10-13 19:45:56,223 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:45:56,223 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775155777]
[2019-10-13 19:45:56,224 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:56,224 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:45:56,224 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:45:56,558 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:57,307 WARN  L191               SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:45:57,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:45:57,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:45:57,363 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775155777]
[2019-10-13 19:45:57,364 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:45:57,364 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:45:57,365 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397754014]
[2019-10-13 19:45:57,370 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:45:57,370 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:45:57,384 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:45:57,385 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:45:57,388 INFO  L87              Difference]: Start difference. First operand 423 states. Second operand 4 states.
[2019-10-13 19:45:57,813 WARN  L191               SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-10-13 19:46:00,485 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:00,486 INFO  L93              Difference]: Finished difference Result 780 states and 1363 transitions.
[2019-10-13 19:46:00,486 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:00,488 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-13 19:46:00,490 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:00,511 INFO  L225             Difference]: With dead ends: 780
[2019-10-13 19:46:00,512 INFO  L226             Difference]: Without dead ends: 620
[2019-10-13 19:46:00,516 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:00,534 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 620 states.
[2019-10-13 19:46:00,602 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 618.
[2019-10-13 19:46:00,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 618 states.
[2019-10-13 19:46:00,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 908 transitions.
[2019-10-13 19:46:00,609 INFO  L78                 Accepts]: Start accepts. Automaton has 618 states and 908 transitions. Word has length 148
[2019-10-13 19:46:00,610 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:00,610 INFO  L462      AbstractCegarLoop]: Abstraction has 618 states and 908 transitions.
[2019-10-13 19:46:00,611 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:00,611 INFO  L276                IsEmpty]: Start isEmpty. Operand 618 states and 908 transitions.
[2019-10-13 19:46:00,616 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:46:00,616 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:00,617 INFO  L380         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]
[2019-10-13 19:46:00,617 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:00,617 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:00,618 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285034941, now seen corresponding path program 1 times
[2019-10-13 19:46:00,618 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:00,618 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986660137]
[2019-10-13 19:46:00,618 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:00,619 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:00,619 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:00,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:01,149 WARN  L191               SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:01,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:01,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:01,202 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986660137]
[2019-10-13 19:46:01,203 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:01,203 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:01,203 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394025305]
[2019-10-13 19:46:01,206 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:01,206 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:01,207 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:01,207 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:01,207 INFO  L87              Difference]: Start difference. First operand 618 states and 908 transitions. Second operand 4 states.
[2019-10-13 19:46:01,499 WARN  L191               SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 197
[2019-10-13 19:46:03,693 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:03,693 INFO  L93              Difference]: Finished difference Result 1261 states and 1910 transitions.
[2019-10-13 19:46:03,693 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:03,694 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 148
[2019-10-13 19:46:03,695 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:03,706 INFO  L225             Difference]: With dead ends: 1261
[2019-10-13 19:46:03,706 INFO  L226             Difference]: Without dead ends: 1038
[2019-10-13 19:46:03,714 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:03,717 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1038 states.
[2019-10-13 19:46:03,786 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1036.
[2019-10-13 19:46:03,787 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1036 states.
[2019-10-13 19:46:03,792 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1547 transitions.
[2019-10-13 19:46:03,792 INFO  L78                 Accepts]: Start accepts. Automaton has 1036 states and 1547 transitions. Word has length 148
[2019-10-13 19:46:03,793 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:03,793 INFO  L462      AbstractCegarLoop]: Abstraction has 1036 states and 1547 transitions.
[2019-10-13 19:46:03,793 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:03,793 INFO  L276                IsEmpty]: Start isEmpty. Operand 1036 states and 1547 transitions.
[2019-10-13 19:46:03,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2019-10-13 19:46:03,797 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:03,798 INFO  L380         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]
[2019-10-13 19:46:03,798 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:03,798 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:03,799 INFO  L82        PathProgramCache]: Analyzing trace with hash -1285373565, now seen corresponding path program 1 times
[2019-10-13 19:46:03,799 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:03,799 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987770633]
[2019-10-13 19:46:03,799 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:03,800 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:03,800 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:04,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:04,408 WARN  L191               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:04,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:04,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:04,453 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987770633]
[2019-10-13 19:46:04,453 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:04,453 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:04,453 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570510439]
[2019-10-13 19:46:04,454 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:04,455 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:04,455 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:04,455 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:04,455 INFO  L87              Difference]: Start difference. First operand 1036 states and 1547 transitions. Second operand 5 states.
[2019-10-13 19:46:07,788 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:07,789 INFO  L93              Difference]: Finished difference Result 3025 states and 4506 transitions.
[2019-10-13 19:46:07,789 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:07,789 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 148
[2019-10-13 19:46:07,790 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:07,808 INFO  L225             Difference]: With dead ends: 3025
[2019-10-13 19:46:07,809 INFO  L226             Difference]: Without dead ends: 2002
[2019-10-13 19:46:07,813 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 19:46:07,816 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2002 states.
[2019-10-13 19:46:07,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1954.
[2019-10-13 19:46:07,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1954 states.
[2019-10-13 19:46:07,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2902 transitions.
[2019-10-13 19:46:07,934 INFO  L78                 Accepts]: Start accepts. Automaton has 1954 states and 2902 transitions. Word has length 148
[2019-10-13 19:46:07,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:07,935 INFO  L462      AbstractCegarLoop]: Abstraction has 1954 states and 2902 transitions.
[2019-10-13 19:46:07,935 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:07,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 1954 states and 2902 transitions.
[2019-10-13 19:46:07,942 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 150
[2019-10-13 19:46:07,944 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:07,944 INFO  L380         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]
[2019-10-13 19:46:07,945 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:07,945 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:07,946 INFO  L82        PathProgramCache]: Analyzing trace with hash 2096736245, now seen corresponding path program 1 times
[2019-10-13 19:46:07,946 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:07,946 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49850801]
[2019-10-13 19:46:07,947 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:07,947 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:07,947 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:07,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:08,415 WARN  L191               SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:08,423 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:08,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:08,470 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49850801]
[2019-10-13 19:46:08,471 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:08,471 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:08,472 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319428435]
[2019-10-13 19:46:08,473 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:08,473 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:08,473 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:08,474 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:08,474 INFO  L87              Difference]: Start difference. First operand 1954 states and 2902 transitions. Second operand 4 states.
[2019-10-13 19:46:10,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:10,890 INFO  L93              Difference]: Finished difference Result 5816 states and 8636 transitions.
[2019-10-13 19:46:10,890 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:10,890 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 149
[2019-10-13 19:46:10,891 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:10,911 INFO  L225             Difference]: With dead ends: 5816
[2019-10-13 19:46:10,911 INFO  L226             Difference]: Without dead ends: 3894
[2019-10-13 19:46:10,917 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:10,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3894 states.
[2019-10-13 19:46:11,017 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3894 to 1956.
[2019-10-13 19:46:11,018 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1956 states.
[2019-10-13 19:46:11,024 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2904 transitions.
[2019-10-13 19:46:11,025 INFO  L78                 Accepts]: Start accepts. Automaton has 1956 states and 2904 transitions. Word has length 149
[2019-10-13 19:46:11,025 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:11,025 INFO  L462      AbstractCegarLoop]: Abstraction has 1956 states and 2904 transitions.
[2019-10-13 19:46:11,025 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:11,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 1956 states and 2904 transitions.
[2019-10-13 19:46:11,029 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 151
[2019-10-13 19:46:11,030 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:11,030 INFO  L380         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]
[2019-10-13 19:46:11,030 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:11,031 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:11,031 INFO  L82        PathProgramCache]: Analyzing trace with hash 196497924, now seen corresponding path program 1 times
[2019-10-13 19:46:11,031 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:11,032 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38404472]
[2019-10-13 19:46:11,032 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:11,032 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:11,032 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:11,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:11,487 WARN  L191               SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:11,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:11,563 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:11,564 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38404472]
[2019-10-13 19:46:11,564 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:11,565 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:11,565 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817724125]
[2019-10-13 19:46:11,565 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:11,566 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:11,566 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:11,566 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:11,566 INFO  L87              Difference]: Start difference. First operand 1956 states and 2904 transitions. Second operand 5 states.
[2019-10-13 19:46:14,539 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:14,539 INFO  L93              Difference]: Finished difference Result 5698 states and 8436 transitions.
[2019-10-13 19:46:14,539 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:14,541 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 150
[2019-10-13 19:46:14,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:14,560 INFO  L225             Difference]: With dead ends: 5698
[2019-10-13 19:46:14,560 INFO  L226             Difference]: Without dead ends: 3776
[2019-10-13 19:46:14,565 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-13 19:46:14,569 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3776 states.
[2019-10-13 19:46:14,712 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3728.
[2019-10-13 19:46:14,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3728 states.
[2019-10-13 19:46:14,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 5493 transitions.
[2019-10-13 19:46:14,724 INFO  L78                 Accepts]: Start accepts. Automaton has 3728 states and 5493 transitions. Word has length 150
[2019-10-13 19:46:14,725 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:14,725 INFO  L462      AbstractCegarLoop]: Abstraction has 3728 states and 5493 transitions.
[2019-10-13 19:46:14,725 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:14,726 INFO  L276                IsEmpty]: Start isEmpty. Operand 3728 states and 5493 transitions.
[2019-10-13 19:46:14,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 152
[2019-10-13 19:46:14,733 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:14,733 INFO  L380         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]
[2019-10-13 19:46:14,734 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:14,734 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:14,734 INFO  L82        PathProgramCache]: Analyzing trace with hash 790157398, now seen corresponding path program 1 times
[2019-10-13 19:46:14,735 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:14,735 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685460807]
[2019-10-13 19:46:14,735 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:14,735 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:14,735 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:14,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:15,089 WARN  L191               SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:15,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:15,124 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:15,124 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685460807]
[2019-10-13 19:46:15,126 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:15,130 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:15,130 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565453322]
[2019-10-13 19:46:15,131 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:15,131 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:15,138 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:15,140 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:15,141 INFO  L87              Difference]: Start difference. First operand 3728 states and 5493 transitions. Second operand 4 states.
[2019-10-13 19:46:18,351 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:18,351 INFO  L93              Difference]: Finished difference Result 11100 states and 16351 transitions.
[2019-10-13 19:46:18,351 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:18,352 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 151
[2019-10-13 19:46:18,352 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:18,385 INFO  L225             Difference]: With dead ends: 11100
[2019-10-13 19:46:18,385 INFO  L226             Difference]: Without dead ends: 7420
[2019-10-13 19:46:18,392 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:18,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7420 states.
[2019-10-13 19:46:18,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7420 to 3732.
[2019-10-13 19:46:18,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3732 states.
[2019-10-13 19:46:18,585 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5497 transitions.
[2019-10-13 19:46:18,586 INFO  L78                 Accepts]: Start accepts. Automaton has 3732 states and 5497 transitions. Word has length 151
[2019-10-13 19:46:18,586 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:18,586 INFO  L462      AbstractCegarLoop]: Abstraction has 3732 states and 5497 transitions.
[2019-10-13 19:46:18,586 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:18,586 INFO  L276                IsEmpty]: Start isEmpty. Operand 3732 states and 5497 transitions.
[2019-10-13 19:46:18,595 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-13 19:46:18,595 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:18,596 INFO  L380         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]
[2019-10-13 19:46:18,596 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:18,597 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:18,597 INFO  L82        PathProgramCache]: Analyzing trace with hash -126702401, now seen corresponding path program 1 times
[2019-10-13 19:46:18,598 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:18,598 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028964010]
[2019-10-13 19:46:18,599 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:18,599 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:18,599 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:18,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:18,957 WARN  L191               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:18,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:19,014 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:19,014 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028964010]
[2019-10-13 19:46:19,014 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:19,015 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-13 19:46:19,015 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998160751]
[2019-10-13 19:46:19,015 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-13 19:46:19,016 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:19,016 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-13 19:46:19,016 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:19,016 INFO  L87              Difference]: Start difference. First operand 3732 states and 5497 transitions. Second operand 4 states.
[2019-10-13 19:46:22,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:22,212 INFO  L93              Difference]: Finished difference Result 10632 states and 15663 transitions.
[2019-10-13 19:46:22,212 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-13 19:46:22,213 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 152
[2019-10-13 19:46:22,213 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:22,244 INFO  L225             Difference]: With dead ends: 10632
[2019-10-13 19:46:22,244 INFO  L226             Difference]: Without dead ends: 7212
[2019-10-13 19:46:22,253 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-13 19:46:22,261 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7212 states.
[2019-10-13 19:46:22,607 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 7164.
[2019-10-13 19:46:22,608 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7164 states.
[2019-10-13 19:46:22,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7164 states to 7164 states and 10459 transitions.
[2019-10-13 19:46:22,618 INFO  L78                 Accepts]: Start accepts. Automaton has 7164 states and 10459 transitions. Word has length 152
[2019-10-13 19:46:22,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:22,619 INFO  L462      AbstractCegarLoop]: Abstraction has 7164 states and 10459 transitions.
[2019-10-13 19:46:22,619 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-13 19:46:22,619 INFO  L276                IsEmpty]: Start isEmpty. Operand 7164 states and 10459 transitions.
[2019-10-13 19:46:22,629 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-13 19:46:22,630 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:22,630 INFO  L380         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]
[2019-10-13 19:46:22,630 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:22,631 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:22,631 INFO  L82        PathProgramCache]: Analyzing trace with hash -1183043556, now seen corresponding path program 1 times
[2019-10-13 19:46:22,631 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:22,631 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460058684]
[2019-10-13 19:46:22,631 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:22,631 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:22,632 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:22,714 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:23,046 WARN  L191               SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:23,050 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:23,078 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:23,079 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460058684]
[2019-10-13 19:46:23,079 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:23,079 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:23,079 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854967470]
[2019-10-13 19:46:23,080 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:23,080 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:23,080 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:23,081 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:23,081 INFO  L87              Difference]: Start difference. First operand 7164 states and 10459 transitions. Second operand 5 states.
[2019-10-13 19:46:25,151 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:46:25,152 INFO  L93              Difference]: Finished difference Result 14748 states and 21411 transitions.
[2019-10-13 19:46:25,152 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-13 19:46:25,152 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 152
[2019-10-13 19:46:25,152 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:46:25,167 INFO  L225             Difference]: With dead ends: 14748
[2019-10-13 19:46:25,167 INFO  L226             Difference]: Without dead ends: 7444
[2019-10-13 19:46:25,180 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:25,188 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7444 states.
[2019-10-13 19:46:25,441 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7444 to 7396.
[2019-10-13 19:46:25,441 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7396 states.
[2019-10-13 19:46:25,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7396 states to 7396 states and 10665 transitions.
[2019-10-13 19:46:25,451 INFO  L78                 Accepts]: Start accepts. Automaton has 7396 states and 10665 transitions. Word has length 152
[2019-10-13 19:46:25,451 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:46:25,451 INFO  L462      AbstractCegarLoop]: Abstraction has 7396 states and 10665 transitions.
[2019-10-13 19:46:25,451 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-13 19:46:25,451 INFO  L276                IsEmpty]: Start isEmpty. Operand 7396 states and 10665 transitions.
[2019-10-13 19:46:25,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 153
[2019-10-13 19:46:25,462 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-13 19:46:25,462 INFO  L380         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]
[2019-10-13 19:46:25,462 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:46:25,463 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:46:25,463 INFO  L82        PathProgramCache]: Analyzing trace with hash 1596344069, now seen corresponding path program 1 times
[2019-10-13 19:46:25,463 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-13 19:46:25,463 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279600431]
[2019-10-13 19:46:25,464 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:25,464 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:46:25,464 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:46:25,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:25,837 WARN  L191               SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 196
[2019-10-13 19:46:25,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:46:25,877 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 19:46:25,878 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279600431]
[2019-10-13 19:46:25,878 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:46:25,878 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-13 19:46:25,878 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889531270]
[2019-10-13 19:46:25,879 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-13 19:46:25,880 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-13 19:46:25,882 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-13 19:46:25,882 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-13 19:46:25,883 INFO  L87              Difference]: Start difference. First operand 7396 states and 10665 transitions. Second operand 5 states.