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_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:43:34,215 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-14 23:43:34,218 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 23:43:34,237 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 23:43:34,237 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 23:43:34,239 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 23:43:34,241 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 23:43:34,251 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 23:43:34,254 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 23:43:34,257 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 23:43:34,259 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 23:43:34,261 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 23:43:34,261 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 23:43:34,263 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 23:43:34,266 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 23:43:34,267 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 23:43:34,268 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 23:43:34,270 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 23:43:34,272 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 23:43:34,277 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 23:43:34,280 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 23:43:34,282 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 23:43:34,283 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 23:43:34,283 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 23:43:34,285 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-14 23:43:34,285 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-14 23:43:34,285 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-14 23:43:34,286 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-14 23:43:34,287 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-14 23:43:34,287 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-14 23:43:34,288 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-14 23:43:34,290 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-14 23:43:34,291 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-14 23:43:34,292 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-14 23:43:34,293 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-14 23:43:34,293 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-14 23:43:34,295 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-14 23:43:34,295 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-14 23:43:34,296 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-14 23:43:34,296 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-14 23:43:34,297 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 23:43:34,298 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
[2019-10-14 23:43:34,326 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:43:34,326 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:43:34,330 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:43:34,330 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:43:34,330 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:43:34,330 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:43:34,331 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:43:34,331 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:43:34,331 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:43:34,331 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:43:34,331 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:43:34,332 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:43:34,332 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:43:34,332 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:43:34,332 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:43:34,333 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:43:34,333 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:43:34,333 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:43:34,334 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:43:34,335 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:43:34,335 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:43:34,335 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:43:34,335 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:43:34,336 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:43:34,336 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:43:34,336 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:43:34,337 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:43:34,337 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:43:34,337 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:43:34,649 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:43:34,662 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:43:34,666 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:43:34,668 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:43:34,668 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:43:34,669 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:43:34,746 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff03a4789/e1f637acd23a459f95b72b2cd7040ff8/FLAGcb788a59c
[2019-10-14 23:43:35,306 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:43:35,307 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:43:35,327 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff03a4789/e1f637acd23a459f95b72b2cd7040ff8/FLAGcb788a59c
[2019-10-14 23:43:35,495 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff03a4789/e1f637acd23a459f95b72b2cd7040ff8
[2019-10-14 23:43:35,506 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:43:35,508 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:43:35,511 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:43:35,511 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:43:35,515 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:43:35,516 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:43:35" (1/1) ...
[2019-10-14 23:43:35,519 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376ef568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:35, skipping insertion in model container
[2019-10-14 23:43:35,519 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:43:35" (1/1) ...
[2019-10-14 23:43:35,527 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:43:35,629 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:43:36,277 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:43:36,291 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:43:36,756 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:43:36,790 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:43:36,791 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36 WrapperNode
[2019-10-14 23:43:36,791 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:43:36,792 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:43:36,792 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:43:36,792 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:43:36,807 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,808 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,833 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,834 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,881 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,900 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,905 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (1/1) ...
[2019-10-14 23:43:36,913 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:43:36,914 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:43:36,914 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:43:36,914 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:43:36,915 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (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
[2019-10-14 23:43:37,000 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:43:37,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:43:37,001 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:43:37,001 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:43:37,001 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:43:37,002 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-10-14 23:43:37,003 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-10-14 23:43:37,003 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-10-14 23:43:37,003 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-14 23:43:37,003 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-10-14 23:43:37,004 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-10-14 23:43:37,004 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-10-14 23:43:37,005 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-10-14 23:43:37,005 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-10-14 23:43:37,006 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-10-14 23:43:37,006 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-10-14 23:43:37,008 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:43:37,010 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:43:37,010 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:43:38,801 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:43:38,802 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-10-14 23:43:38,805 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:43:38 BoogieIcfgContainer
[2019-10-14 23:43:38,805 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:43:38,806 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:43:38,807 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:43:38,812 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:43:38,813 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:43:35" (1/3) ...
[2019-10-14 23:43:38,814 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77327669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:43:38, skipping insertion in model container
[2019-10-14 23:43:38,814 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:43:36" (2/3) ...
[2019-10-14 23:43:38,815 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77327669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:43:38, skipping insertion in model container
[2019-10-14 23:43:38,816 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:43:38" (3/3) ...
[2019-10-14 23:43:38,825 INFO  L109   eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-10-14 23:43:38,838 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:43:38,869 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-10-14 23:43:38,882 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-10-14 23:43:38,927 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:43:38,928 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:43:38,928 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:43:38,928 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:43:38,928 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:43:38,928 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:43:38,929 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:43:38,929 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:43:38,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 387 states.
[2019-10-14 23:43:38,990 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-10-14 23:43:38,991 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:38,992 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]
[2019-10-14 23:43:38,994 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:38,998 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:38,998 INFO  L82        PathProgramCache]: Analyzing trace with hash -1251267404, now seen corresponding path program 1 times
[2019-10-14 23:43:39,005 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:39,005 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824778171]
[2019-10-14 23:43:39,006 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:39,006 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:39,006 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:39,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:39,970 WARN  L191               SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:39,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:40,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:40,058 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824778171]
[2019-10-14 23:43:40,059 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:40,059 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:43:40,060 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746450383]
[2019-10-14 23:43:40,067 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:43:40,067 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:40,078 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:43:40,078 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:43:40,080 INFO  L87              Difference]: Start difference. First operand 387 states. Second operand 4 states.
[2019-10-14 23:43:40,418 WARN  L191               SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-10-14 23:43:42,927 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:42,928 INFO  L93              Difference]: Finished difference Result 709 states and 1253 transitions.
[2019-10-14 23:43:42,928 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:43:42,930 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 139
[2019-10-14 23:43:42,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:42,959 INFO  L225             Difference]: With dead ends: 709
[2019-10-14 23:43:42,959 INFO  L226             Difference]: Without dead ends: 562
[2019-10-14 23:43:42,965 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:43:42,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 562 states.
[2019-10-14 23:43:43,055 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 560.
[2019-10-14 23:43:43,056 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 560 states.
[2019-10-14 23:43:43,060 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 820 transitions.
[2019-10-14 23:43:43,062 INFO  L78                 Accepts]: Start accepts. Automaton has 560 states and 820 transitions. Word has length 139
[2019-10-14 23:43:43,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:43,063 INFO  L462      AbstractCegarLoop]: Abstraction has 560 states and 820 transitions.
[2019-10-14 23:43:43,063 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:43:43,064 INFO  L276                IsEmpty]: Start isEmpty. Operand 560 states and 820 transitions.
[2019-10-14 23:43:43,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-10-14 23:43:43,067 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:43,068 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]
[2019-10-14 23:43:43,068 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:43,068 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:43,069 INFO  L82        PathProgramCache]: Analyzing trace with hash 1903687668, now seen corresponding path program 1 times
[2019-10-14 23:43:43,069 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:43,069 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032242038]
[2019-10-14 23:43:43,069 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:43,069 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:43,070 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:43,154 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:43,546 WARN  L191               SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:43,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:43,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:43,589 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032242038]
[2019-10-14 23:43:43,589 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:43,589 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:43:43,590 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46209336]
[2019-10-14 23:43:43,592 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:43:43,593 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:43,593 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:43:43,593 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:43:43,594 INFO  L87              Difference]: Start difference. First operand 560 states and 820 transitions. Second operand 4 states.
[2019-10-14 23:43:43,867 WARN  L191               SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188
[2019-10-14 23:43:45,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:45,878 INFO  L93              Difference]: Finished difference Result 1135 states and 1718 transitions.
[2019-10-14 23:43:45,879 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:43:45,879 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 139
[2019-10-14 23:43:45,880 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:45,885 INFO  L225             Difference]: With dead ends: 1135
[2019-10-14 23:43:45,886 INFO  L226             Difference]: Without dead ends: 934
[2019-10-14 23:43:45,888 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
[2019-10-14 23:43:45,891 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 934 states.
[2019-10-14 23:43:45,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 932.
[2019-10-14 23:43:45,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 932 states.
[2019-10-14 23:43:45,940 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1389 transitions.
[2019-10-14 23:43:45,941 INFO  L78                 Accepts]: Start accepts. Automaton has 932 states and 1389 transitions. Word has length 139
[2019-10-14 23:43:45,942 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:45,942 INFO  L462      AbstractCegarLoop]: Abstraction has 932 states and 1389 transitions.
[2019-10-14 23:43:45,942 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:43:45,942 INFO  L276                IsEmpty]: Start isEmpty. Operand 932 states and 1389 transitions.
[2019-10-14 23:43:45,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2019-10-14 23:43:45,946 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:45,946 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]
[2019-10-14 23:43:45,947 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:45,947 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:45,947 INFO  L82        PathProgramCache]: Analyzing trace with hash 1903349044, now seen corresponding path program 1 times
[2019-10-14 23:43:45,948 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:45,948 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867122780]
[2019-10-14 23:43:45,948 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:45,948 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:45,949 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:46,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:46,531 WARN  L191               SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:46,540 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:46,609 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:46,611 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867122780]
[2019-10-14 23:43:46,619 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:46,619 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:43:46,620 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574878372]
[2019-10-14 23:43:46,620 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:43:46,621 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:46,621 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:43:46,623 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:43:46,623 INFO  L87              Difference]: Start difference. First operand 932 states and 1389 transitions. Second operand 5 states.
[2019-10-14 23:43:49,405 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:49,406 INFO  L93              Difference]: Finished difference Result 2722 states and 4050 transitions.
[2019-10-14 23:43:49,406 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:43:49,406 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 139
[2019-10-14 23:43:49,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:49,418 INFO  L225             Difference]: With dead ends: 2722
[2019-10-14 23:43:49,419 INFO  L226             Difference]: Without dead ends: 1803
[2019-10-14 23:43:49,428 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:43:49,431 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1803 states.
[2019-10-14 23:43:49,515 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1761.
[2019-10-14 23:43:49,516 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1761 states.
[2019-10-14 23:43:49,526 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 2610 transitions.
[2019-10-14 23:43:49,526 INFO  L78                 Accepts]: Start accepts. Automaton has 1761 states and 2610 transitions. Word has length 139
[2019-10-14 23:43:49,527 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:49,527 INFO  L462      AbstractCegarLoop]: Abstraction has 1761 states and 2610 transitions.
[2019-10-14 23:43:49,528 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:43:49,528 INFO  L276                IsEmpty]: Start isEmpty. Operand 1761 states and 2610 transitions.
[2019-10-14 23:43:49,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2019-10-14 23:43:49,533 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:49,533 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]
[2019-10-14 23:43:49,534 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:49,534 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:49,534 INFO  L82        PathProgramCache]: Analyzing trace with hash 1746903084, now seen corresponding path program 1 times
[2019-10-14 23:43:49,535 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:49,535 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675285214]
[2019-10-14 23:43:49,535 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:49,535 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:49,535 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:49,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:49,899 WARN  L191               SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:49,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:49,944 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:49,944 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675285214]
[2019-10-14 23:43:49,944 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:49,945 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:43:49,946 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034271311]
[2019-10-14 23:43:49,946 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:43:49,947 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:49,947 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:43:49,947 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:43:49,948 INFO  L87              Difference]: Start difference. First operand 1761 states and 2610 transitions. Second operand 4 states.
[2019-10-14 23:43:53,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:53,305 INFO  L93              Difference]: Finished difference Result 5237 states and 7760 transitions.
[2019-10-14 23:43:53,306 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:43:53,306 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 140
[2019-10-14 23:43:53,306 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:53,323 INFO  L225             Difference]: With dead ends: 5237
[2019-10-14 23:43:53,323 INFO  L226             Difference]: Without dead ends: 3508
[2019-10-14 23:43:53,327 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
[2019-10-14 23:43:53,331 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3508 states.
[2019-10-14 23:43:53,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3508 to 1763.
[2019-10-14 23:43:53,415 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1763 states.
[2019-10-14 23:43:53,421 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions.
[2019-10-14 23:43:53,422 INFO  L78                 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 140
[2019-10-14 23:43:53,422 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:53,422 INFO  L462      AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions.
[2019-10-14 23:43:53,422 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:43:53,423 INFO  L276                IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions.
[2019-10-14 23:43:53,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-14 23:43:53,426 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:53,427 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]
[2019-10-14 23:43:53,427 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:53,427 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:53,428 INFO  L82        PathProgramCache]: Analyzing trace with hash 2122749224, now seen corresponding path program 1 times
[2019-10-14 23:43:53,428 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:53,428 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508061757]
[2019-10-14 23:43:53,429 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:53,429 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:53,429 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:53,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:53,780 WARN  L191               SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:53,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:53,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:53,821 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508061757]
[2019-10-14 23:43:53,821 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:53,822 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:43:53,822 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110879224]
[2019-10-14 23:43:53,823 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:43:53,823 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:53,823 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:43:53,824 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:43:53,824 INFO  L87              Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 4 states.
[2019-10-14 23:43:56,589 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:56,589 INFO  L93              Difference]: Finished difference Result 4646 states and 6878 transitions.
[2019-10-14 23:43:56,593 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:43:56,594 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 141
[2019-10-14 23:43:56,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:56,608 INFO  L225             Difference]: With dead ends: 4646
[2019-10-14 23:43:56,608 INFO  L226             Difference]: Without dead ends: 3051
[2019-10-14 23:43:56,612 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
[2019-10-14 23:43:56,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3051 states.
[2019-10-14 23:43:56,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3009.
[2019-10-14 23:43:56,760 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3009 states.
[2019-10-14 23:43:56,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 4406 transitions.
[2019-10-14 23:43:56,769 INFO  L78                 Accepts]: Start accepts. Automaton has 3009 states and 4406 transitions. Word has length 141
[2019-10-14 23:43:56,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:56,770 INFO  L462      AbstractCegarLoop]: Abstraction has 3009 states and 4406 transitions.
[2019-10-14 23:43:56,770 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:43:56,770 INFO  L276                IsEmpty]: Start isEmpty. Operand 3009 states and 4406 transitions.
[2019-10-14 23:43:56,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-14 23:43:56,775 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:56,776 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]
[2019-10-14 23:43:56,776 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:56,776 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:56,776 INFO  L82        PathProgramCache]: Analyzing trace with hash -1627018325, now seen corresponding path program 1 times
[2019-10-14 23:43:56,777 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:56,777 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387049200]
[2019-10-14 23:43:56,777 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:56,777 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:56,777 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:43:56,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:57,187 WARN  L191               SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:43:57,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:43:57,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:43:57,227 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387049200]
[2019-10-14 23:43:57,229 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:43:57,233 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:43:57,233 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352437168]
[2019-10-14 23:43:57,234 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:43:57,234 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:43:57,236 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:43:57,237 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:43:57,237 INFO  L87              Difference]: Start difference. First operand 3009 states and 4406 transitions. Second operand 5 states.
[2019-10-14 23:43:59,710 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:43:59,710 INFO  L93              Difference]: Finished difference Result 6236 states and 9063 transitions.
[2019-10-14 23:43:59,711 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:43:59,711 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-10-14 23:43:59,714 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:43:59,734 INFO  L225             Difference]: With dead ends: 6236
[2019-10-14 23:43:59,734 INFO  L226             Difference]: Without dead ends: 3185
[2019-10-14 23:43:59,742 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
[2019-10-14 23:43:59,748 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3185 states.
[2019-10-14 23:43:59,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3141.
[2019-10-14 23:43:59,919 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3141 states.
[2019-10-14 23:43:59,935 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4541 transitions.
[2019-10-14 23:43:59,936 INFO  L78                 Accepts]: Start accepts. Automaton has 3141 states and 4541 transitions. Word has length 141
[2019-10-14 23:43:59,936 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:43:59,936 INFO  L462      AbstractCegarLoop]: Abstraction has 3141 states and 4541 transitions.
[2019-10-14 23:43:59,936 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:43:59,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 3141 states and 4541 transitions.
[2019-10-14 23:43:59,943 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2019-10-14 23:43:59,944 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:43:59,944 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]
[2019-10-14 23:43:59,944 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:43:59,945 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:43:59,945 INFO  L82        PathProgramCache]: Analyzing trace with hash -1058765613, now seen corresponding path program 1 times
[2019-10-14 23:43:59,947 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:43:59,947 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248399794]
[2019-10-14 23:43:59,947 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:59,948 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:43:59,948 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:00,063 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:00,388 WARN  L191               SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:00,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:00,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:44:00,430 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248399794]
[2019-10-14 23:44:00,430 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:00,430 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:00,431 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028658403]
[2019-10-14 23:44:00,431 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:00,432 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:00,433 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:00,433 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:00,433 INFO  L87              Difference]: Start difference. First operand 3141 states and 4541 transitions. Second operand 5 states.
[2019-10-14 23:44:03,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:03,264 INFO  L93              Difference]: Finished difference Result 9129 states and 13145 transitions.
[2019-10-14 23:44:03,264 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2019-10-14 23:44:03,266 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 141
[2019-10-14 23:44:03,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:03,292 INFO  L225             Difference]: With dead ends: 9129
[2019-10-14 23:44:03,293 INFO  L226             Difference]: Without dead ends: 6060
[2019-10-14 23:44:03,302 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
[2019-10-14 23:44:03,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6060 states.
[2019-10-14 23:44:03,674 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6060 to 6016.
[2019-10-14 23:44:03,674 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6016 states.
[2019-10-14 23:44:03,686 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 8600 transitions.
[2019-10-14 23:44:03,687 INFO  L78                 Accepts]: Start accepts. Automaton has 6016 states and 8600 transitions. Word has length 141
[2019-10-14 23:44:03,687 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:03,687 INFO  L462      AbstractCegarLoop]: Abstraction has 6016 states and 8600 transitions.
[2019-10-14 23:44:03,687 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:44:03,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 6016 states and 8600 transitions.
[2019-10-14 23:44:03,698 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2019-10-14 23:44:03,699 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:03,699 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]
[2019-10-14 23:44:03,699 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:03,700 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:03,700 INFO  L82        PathProgramCache]: Analyzing trace with hash -1467508373, now seen corresponding path program 1 times
[2019-10-14 23:44:03,700 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:03,701 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602194578]
[2019-10-14 23:44:03,701 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:03,701 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:03,701 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:03,720 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:04,025 WARN  L191               SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:04,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:04,057 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:44:04,058 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602194578]
[2019-10-14 23:44:04,058 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:04,058 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 23:44:04,059 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813457488]
[2019-10-14 23:44:04,060 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-10-14 23:44:04,060 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:04,061 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-10-14 23:44:04,061 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-10-14 23:44:04,062 INFO  L87              Difference]: Start difference. First operand 6016 states and 8600 transitions. Second operand 4 states.
[2019-10-14 23:44:05,994 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:44:05,995 INFO  L93              Difference]: Finished difference Result 17854 states and 25496 transitions.
[2019-10-14 23:44:05,995 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2019-10-14 23:44:05,995 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 142
[2019-10-14 23:44:05,996 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:44:06,040 INFO  L225             Difference]: With dead ends: 17854
[2019-10-14 23:44:06,040 INFO  L226             Difference]: Without dead ends: 11954
[2019-10-14 23:44:06,053 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
[2019-10-14 23:44:06,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11954 states.
[2019-10-14 23:44:06,360 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11954 to 6028.
[2019-10-14 23:44:06,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6028 states.
[2019-10-14 23:44:06,371 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 8612 transitions.
[2019-10-14 23:44:06,371 INFO  L78                 Accepts]: Start accepts. Automaton has 6028 states and 8612 transitions. Word has length 142
[2019-10-14 23:44:06,371 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:44:06,372 INFO  L462      AbstractCegarLoop]: Abstraction has 6028 states and 8612 transitions.
[2019-10-14 23:44:06,372 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-10-14 23:44:06,372 INFO  L276                IsEmpty]: Start isEmpty. Operand 6028 states and 8612 transitions.
[2019-10-14 23:44:06,381 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2019-10-14 23:44:06,381 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:44:06,382 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]
[2019-10-14 23:44:06,382 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:44:06,382 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:44:06,382 INFO  L82        PathProgramCache]: Analyzing trace with hash -1015908366, now seen corresponding path program 1 times
[2019-10-14 23:44:06,383 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:44:06,383 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249884534]
[2019-10-14 23:44:06,383 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:06,383 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:44:06,383 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:44:06,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:06,788 WARN  L191               SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187
[2019-10-14 23:44:06,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:44:06,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:44:06,844 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249884534]
[2019-10-14 23:44:06,845 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:44:06,845 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:44:06,845 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023613473]
[2019-10-14 23:44:06,846 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:44:06,847 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:44:06,850 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:44:06,851 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:44:06,851 INFO  L87              Difference]: Start difference. First operand 6028 states and 8612 transitions. Second operand 5 states.