java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 01:37:34,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 01:37:34,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 01:37:34,961 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 01:37:34,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 01:37:34,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 01:37:34,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 01:37:34,966 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 01:37:34,968 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 01:37:34,969 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 01:37:34,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 01:37:34,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 01:37:34,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 01:37:34,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 01:37:34,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 01:37:34,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 01:37:34,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 01:37:34,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 01:37:34,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 01:37:34,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 01:37:34,984 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 01:37:34,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 01:37:34,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 01:37:34,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 01:37:34,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 01:37:34,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 01:37:34,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 01:37:34,992 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 01:37:34,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 01:37:34,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 01:37:34,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 01:37:34,995 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 01:37:34,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 01:37:34,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 01:37:34,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 01:37:34,997 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 01:37:34,998 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 01:37:35,014 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 01:37:35,014 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 01:37:35,015 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 01:37:35,015 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 01:37:35,016 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 01:37:35,016 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 01:37:35,016 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 01:37:35,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 01:37:35,017 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 01:37:35,017 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 01:37:35,017 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 01:37:35,017 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 01:37:35,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 01:37:35,018 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 01:37:35,018 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 01:37:35,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 01:37:35,018 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 01:37:35,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 01:37:35,019 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 01:37:35,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 01:37:35,019 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 01:37:35,020 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 01:37:35,020 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 01:37:35,020 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 01:37:35,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 01:37:35,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 01:37:35,021 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 01:37:35,021 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 01:37:35,068 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 01:37:35,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 01:37:35,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 01:37:35,087 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 01:37:35,088 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 01:37:35,089 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label44_true-unreach-call_false-termination.c [2018-07-24 01:37:35,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f8cb54/bee013cbf5254f94884d66cecb4f76bc/FLAGedd0d3618 [2018-07-24 01:37:35,985 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 01:37:35,986 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label44_true-unreach-call_false-termination.c [2018-07-24 01:37:36,026 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f8cb54/bee013cbf5254f94884d66cecb4f76bc/FLAGedd0d3618 [2018-07-24 01:37:36,043 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/194f8cb54/bee013cbf5254f94884d66cecb4f76bc [2018-07-24 01:37:36,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 01:37:36,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 01:37:36,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 01:37:36,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 01:37:36,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 01:37:36,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:37:36" (1/1) ... [2018-07-24 01:37:36,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e4b10c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:36, skipping insertion in model container [2018-07-24 01:37:36,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:37:36" (1/1) ... [2018-07-24 01:37:36,450 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 01:37:37,596 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:37:37,615 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 01:37:38,334 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 01:37:38,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38 WrapperNode [2018-07-24 01:37:38,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 01:37:38,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 01:37:38,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 01:37:38,476 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 01:37:38,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:38,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:38,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 01:37:38,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 01:37:38,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 01:37:38,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 01:37:39,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (1/1) ... [2018-07-24 01:37:39,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 01:37:39,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 01:37:39,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 01:37:39,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 01:37:39,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (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 [2018-07-24 01:37:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 01:37:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 01:37:39,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 01:37:48,968 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 01:37:48,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:37:48 BoogieIcfgContainer [2018-07-24 01:37:48,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 01:37:48,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 01:37:48,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 01:37:48,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 01:37:48,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:37:36" (1/3) ... [2018-07-24 01:37:48,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3412b5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:37:48, skipping insertion in model container [2018-07-24 01:37:48,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:37:38" (2/3) ... [2018-07-24 01:37:48,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3412b5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:37:48, skipping insertion in model container [2018-07-24 01:37:48,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:37:48" (3/3) ... [2018-07-24 01:37:48,978 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label44_true-unreach-call_false-termination.c [2018-07-24 01:37:48,988 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 01:37:49,001 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 01:37:49,065 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 01:37:49,066 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 01:37:49,066 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 01:37:49,066 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 01:37:49,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 01:37:49,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 01:37:49,067 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 01:37:49,067 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 01:37:49,067 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 01:37:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-07-24 01:37:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2018-07-24 01:37:49,155 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:37:49,157 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:37:49,158 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:37:49,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1230574619, now seen corresponding path program 1 times [2018-07-24 01:37:49,166 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:37:49,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:37:49,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:37:49,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:37:49,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:37:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:37:51,157 WARN L169 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-24 01:37:51,595 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2018-07-24 01:37:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 01:37:54,654 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:37:54,654 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 01:37:54,660 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 01:37:54,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 01:37:54,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:37:54,674 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 8 states. [2018-07-24 01:38:19,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:38:19,872 INFO L93 Difference]: Finished difference Result 5886 states and 11579 transitions. [2018-07-24 01:38:19,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 01:38:19,876 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 783 [2018-07-24 01:38:19,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:38:19,930 INFO L225 Difference]: With dead ends: 5886 [2018-07-24 01:38:19,931 INFO L226 Difference]: Without dead ends: 4981 [2018-07-24 01:38:19,940 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 8 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:38:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4981 states. [2018-07-24 01:38:20,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4981 to 4978. [2018-07-24 01:38:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2018-07-24 01:38:20,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 6288 transitions. [2018-07-24 01:38:20,152 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 6288 transitions. Word has length 783 [2018-07-24 01:38:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:38:20,155 INFO L471 AbstractCegarLoop]: Abstraction has 4978 states and 6288 transitions. [2018-07-24 01:38:20,155 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 01:38:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 6288 transitions. [2018-07-24 01:38:20,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2018-07-24 01:38:20,195 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:38:20,196 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:38:20,196 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:38:20,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1772901112, now seen corresponding path program 1 times [2018-07-24 01:38:20,197 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:38:20,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:38:20,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:20,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:38:20,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:38:20,744 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 01:38:20,745 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:38:20,745 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 01:38:20,749 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 01:38:20,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 01:38:20,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:38:20,750 INFO L87 Difference]: Start difference. First operand 4978 states and 6288 transitions. Second operand 3 states. [2018-07-24 01:38:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:38:27,674 INFO L93 Difference]: Finished difference Result 10773 states and 14580 transitions. [2018-07-24 01:38:27,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 01:38:27,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 805 [2018-07-24 01:38:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:38:27,707 INFO L225 Difference]: With dead ends: 10773 [2018-07-24 01:38:27,708 INFO L226 Difference]: Without dead ends: 6616 [2018-07-24 01:38:27,714 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 01:38:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6616 states. [2018-07-24 01:38:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6616 to 6616. [2018-07-24 01:38:27,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6616 states. [2018-07-24 01:38:27,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6616 states to 6616 states and 8453 transitions. [2018-07-24 01:38:27,836 INFO L78 Accepts]: Start accepts. Automaton has 6616 states and 8453 transitions. Word has length 805 [2018-07-24 01:38:27,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:38:27,837 INFO L471 AbstractCegarLoop]: Abstraction has 6616 states and 8453 transitions. [2018-07-24 01:38:27,837 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 01:38:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6616 states and 8453 transitions. [2018-07-24 01:38:27,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 807 [2018-07-24 01:38:27,855 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:38:27,855 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:38:27,855 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:38:27,856 INFO L82 PathProgramCache]: Analyzing trace with hash 591937464, now seen corresponding path program 1 times [2018-07-24 01:38:27,856 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:38:27,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:38:27,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:27,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:38:27,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:38:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 01:38:29,691 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:38:29,692 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:38:29,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:38:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:38:30,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:38:30,854 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-07-24 01:38:30,881 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:38:30,883 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 01:38:30,885 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:38:30,885 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:38:30,885 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:38:30,885 INFO L87 Difference]: Start difference. First operand 6616 states and 8453 transitions. Second operand 5 states. [2018-07-24 01:38:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:38:43,493 INFO L93 Difference]: Finished difference Result 29610 states and 41028 transitions. [2018-07-24 01:38:43,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 01:38:43,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 806 [2018-07-24 01:38:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:38:43,581 INFO L225 Difference]: With dead ends: 29610 [2018-07-24 01:38:43,581 INFO L226 Difference]: Without dead ends: 23815 [2018-07-24 01:38:43,593 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 805 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 01:38:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23815 states. [2018-07-24 01:38:43,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23815 to 23815. [2018-07-24 01:38:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23815 states. [2018-07-24 01:38:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23815 states to 23815 states and 29970 transitions. [2018-07-24 01:38:44,040 INFO L78 Accepts]: Start accepts. Automaton has 23815 states and 29970 transitions. Word has length 806 [2018-07-24 01:38:44,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:38:44,042 INFO L471 AbstractCegarLoop]: Abstraction has 23815 states and 29970 transitions. [2018-07-24 01:38:44,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 01:38:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand 23815 states and 29970 transitions. [2018-07-24 01:38:44,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2018-07-24 01:38:44,097 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:38:44,098 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:38:44,098 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:38:44,099 INFO L82 PathProgramCache]: Analyzing trace with hash -212322738, now seen corresponding path program 1 times [2018-07-24 01:38:44,099 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:38:44,099 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:38:44,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:44,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:38:44,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:38:44,501 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-07-24 01:38:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 01:38:44,816 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:38:44,816 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 01:38:44,817 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:38:44,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:38:44,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:38:44,818 INFO L87 Difference]: Start difference. First operand 23815 states and 29970 transitions. Second operand 4 states. [2018-07-24 01:38:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:38:52,436 INFO L93 Difference]: Finished difference Result 54999 states and 69857 transitions. [2018-07-24 01:38:52,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:38:52,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 923 [2018-07-24 01:38:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:38:52,503 INFO L225 Difference]: With dead ends: 54999 [2018-07-24 01:38:52,503 INFO L226 Difference]: Without dead ends: 32005 [2018-07-24 01:38:52,529 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:38:52,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32005 states. [2018-07-24 01:38:53,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32005 to 32005. [2018-07-24 01:38:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32005 states. [2018-07-24 01:38:53,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32005 states to 32005 states and 37972 transitions. [2018-07-24 01:38:53,068 INFO L78 Accepts]: Start accepts. Automaton has 32005 states and 37972 transitions. Word has length 923 [2018-07-24 01:38:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:38:53,069 INFO L471 AbstractCegarLoop]: Abstraction has 32005 states and 37972 transitions. [2018-07-24 01:38:53,069 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:38:53,069 INFO L276 IsEmpty]: Start isEmpty. Operand 32005 states and 37972 transitions. [2018-07-24 01:38:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2018-07-24 01:38:53,129 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:38:53,130 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:38:53,130 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:38:53,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1663935818, now seen corresponding path program 1 times [2018-07-24 01:38:53,131 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:38:53,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:38:53,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:53,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:38:53,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:38:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:38:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2018-07-24 01:38:53,958 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:38:53,959 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:38:53,960 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:38:53,960 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:38:53,960 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:38:53,961 INFO L87 Difference]: Start difference. First operand 32005 states and 37972 transitions. Second operand 4 states. [2018-07-24 01:39:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:39:02,982 INFO L93 Difference]: Finished difference Result 101682 states and 123245 transitions. [2018-07-24 01:39:02,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:39:02,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 974 [2018-07-24 01:39:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:39:03,111 INFO L225 Difference]: With dead ends: 101682 [2018-07-24 01:39:03,111 INFO L226 Difference]: Without dead ends: 70498 [2018-07-24 01:39:03,159 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:39:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70498 states. [2018-07-24 01:39:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70498 to 70498. [2018-07-24 01:39:03,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70498 states. [2018-07-24 01:39:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70498 states to 70498 states and 83653 transitions. [2018-07-24 01:39:04,047 INFO L78 Accepts]: Start accepts. Automaton has 70498 states and 83653 transitions. Word has length 974 [2018-07-24 01:39:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:39:04,047 INFO L471 AbstractCegarLoop]: Abstraction has 70498 states and 83653 transitions. [2018-07-24 01:39:04,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:39:04,048 INFO L276 IsEmpty]: Start isEmpty. Operand 70498 states and 83653 transitions. [2018-07-24 01:39:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2018-07-24 01:39:04,124 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:39:04,125 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:39:04,125 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:39:04,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1140281732, now seen corresponding path program 1 times [2018-07-24 01:39:04,126 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:39:04,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:39:04,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:04,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:04,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:39:04,509 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-07-24 01:39:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-07-24 01:39:04,998 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:39:04,998 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:39:05,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:39:05,758 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:39:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-07-24 01:39:06,483 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:39:06,484 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 01:39:06,486 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 01:39:06,486 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 01:39:06,486 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:39:06,487 INFO L87 Difference]: Start difference. First operand 70498 states and 83653 transitions. Second operand 5 states. [2018-07-24 01:39:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:39:16,506 INFO L93 Difference]: Finished difference Result 218799 states and 259178 transitions. [2018-07-24 01:39:16,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:39:16,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1029 [2018-07-24 01:39:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:39:16,668 INFO L225 Difference]: With dead ends: 218799 [2018-07-24 01:39:16,669 INFO L226 Difference]: Without dead ends: 149122 [2018-07-24 01:39:16,722 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1032 GetRequests, 1028 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 01:39:16,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149122 states. [2018-07-24 01:39:18,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149122 to 146665. [2018-07-24 01:39:18,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146665 states. [2018-07-24 01:39:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146665 states to 146665 states and 166284 transitions. [2018-07-24 01:39:18,312 INFO L78 Accepts]: Start accepts. Automaton has 146665 states and 166284 transitions. Word has length 1029 [2018-07-24 01:39:18,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:39:18,313 INFO L471 AbstractCegarLoop]: Abstraction has 146665 states and 166284 transitions. [2018-07-24 01:39:18,313 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 01:39:18,313 INFO L276 IsEmpty]: Start isEmpty. Operand 146665 states and 166284 transitions. [2018-07-24 01:39:18,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1251 [2018-07-24 01:39:18,406 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:39:18,407 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:39:18,407 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:39:18,408 INFO L82 PathProgramCache]: Analyzing trace with hash -2029160466, now seen corresponding path program 1 times [2018-07-24 01:39:18,408 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:39:18,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:39:18,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:18,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:18,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:39:19,298 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 01:39:19,559 WARN L169 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 01:39:19,866 WARN L169 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-07-24 01:39:22,454 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 506 proven. 4 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-07-24 01:39:22,455 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:39:22,455 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:39:22,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:39:22,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:39:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 01:39:23,947 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:39:23,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 01:39:23,950 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 01:39:23,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 01:39:23,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:39:23,951 INFO L87 Difference]: Start difference. First operand 146665 states and 166284 transitions. Second operand 8 states. [2018-07-24 01:39:46,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:39:46,409 INFO L93 Difference]: Finished difference Result 313217 states and 355221 transitions. [2018-07-24 01:39:46,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 01:39:46,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1250 [2018-07-24 01:39:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:39:46,626 INFO L225 Difference]: With dead ends: 313217 [2018-07-24 01:39:46,627 INFO L226 Difference]: Without dead ends: 167373 [2018-07-24 01:39:46,713 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1270 GetRequests, 1255 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-07-24 01:39:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167373 states. [2018-07-24 01:39:48,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167373 to 142568. [2018-07-24 01:39:48,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142568 states. [2018-07-24 01:39:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142568 states to 142568 states and 156509 transitions. [2018-07-24 01:39:48,269 INFO L78 Accepts]: Start accepts. Automaton has 142568 states and 156509 transitions. Word has length 1250 [2018-07-24 01:39:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:39:48,270 INFO L471 AbstractCegarLoop]: Abstraction has 142568 states and 156509 transitions. [2018-07-24 01:39:48,270 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 01:39:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 142568 states and 156509 transitions. [2018-07-24 01:39:48,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2018-07-24 01:39:48,349 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:39:48,350 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:39:48,351 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:39:48,352 INFO L82 PathProgramCache]: Analyzing trace with hash -810294884, now seen corresponding path program 1 times [2018-07-24 01:39:48,352 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:39:48,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:39:48,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:48,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:48,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:39:50,059 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2018-07-24 01:39:50,059 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:39:50,059 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:39:50,061 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:39:50,061 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:39:50,061 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:39:50,061 INFO L87 Difference]: Start difference. First operand 142568 states and 156509 transitions. Second operand 4 states. [2018-07-24 01:39:57,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:39:57,671 INFO L93 Difference]: Finished difference Result 284315 states and 312191 transitions. [2018-07-24 01:39:57,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:39:57,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1322 [2018-07-24 01:39:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:39:57,810 INFO L225 Difference]: With dead ends: 284315 [2018-07-24 01:39:57,810 INFO L226 Difference]: Without dead ends: 129448 [2018-07-24 01:39:57,869 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:39:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129448 states. [2018-07-24 01:39:58,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129448 to 126991. [2018-07-24 01:39:58,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126991 states. [2018-07-24 01:39:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126991 states to 126991 states and 134897 transitions. [2018-07-24 01:39:59,089 INFO L78 Accepts]: Start accepts. Automaton has 126991 states and 134897 transitions. Word has length 1322 [2018-07-24 01:39:59,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:39:59,089 INFO L471 AbstractCegarLoop]: Abstraction has 126991 states and 134897 transitions. [2018-07-24 01:39:59,089 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:39:59,089 INFO L276 IsEmpty]: Start isEmpty. Operand 126991 states and 134897 transitions. [2018-07-24 01:39:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2018-07-24 01:39:59,164 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:39:59,165 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:39:59,165 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:39:59,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1356543249, now seen corresponding path program 1 times [2018-07-24 01:39:59,166 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:39:59,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:39:59,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:59,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:39:59,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:39:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2018-07-24 01:40:01,260 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:40:01,261 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:40:01,261 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:40:01,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:40:01,262 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:40:01,262 INFO L87 Difference]: Start difference. First operand 126991 states and 134897 transitions. Second operand 4 states. [2018-07-24 01:40:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:40:09,691 INFO L93 Difference]: Finished difference Result 253980 states and 269810 transitions. [2018-07-24 01:40:09,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:40:09,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1328 [2018-07-24 01:40:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:40:09,813 INFO L225 Difference]: With dead ends: 253980 [2018-07-24 01:40:09,813 INFO L226 Difference]: Without dead ends: 125350 [2018-07-24 01:40:09,861 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:40:09,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125350 states. [2018-07-24 01:40:10,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125350 to 122074. [2018-07-24 01:40:10,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122074 states. [2018-07-24 01:40:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122074 states to 122074 states and 127646 transitions. [2018-07-24 01:40:10,911 INFO L78 Accepts]: Start accepts. Automaton has 122074 states and 127646 transitions. Word has length 1328 [2018-07-24 01:40:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:40:10,912 INFO L471 AbstractCegarLoop]: Abstraction has 122074 states and 127646 transitions. [2018-07-24 01:40:10,912 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:40:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 122074 states and 127646 transitions. [2018-07-24 01:40:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1490 [2018-07-24 01:40:10,971 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:40:10,972 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:40:10,972 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:40:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash 715754311, now seen corresponding path program 1 times [2018-07-24 01:40:10,973 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:40:10,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:40:10,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:10,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:40:10,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 1107 proven. 263 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2018-07-24 01:40:15,372 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:40:15,372 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:40:15,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:40:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:15,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:40:17,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 998 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2018-07-24 01:40:17,832 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:40:17,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-07-24 01:40:17,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 01:40:17,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 01:40:17,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-07-24 01:40:17,835 INFO L87 Difference]: Start difference. First operand 122074 states and 127646 transitions. Second operand 8 states. [2018-07-24 01:40:18,010 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 01:40:36,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:40:36,008 INFO L93 Difference]: Finished difference Result 248444 states and 259826 transitions. [2018-07-24 01:40:36,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 01:40:36,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1489 [2018-07-24 01:40:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:40:36,165 INFO L225 Difference]: With dead ends: 248444 [2018-07-24 01:40:36,166 INFO L226 Difference]: Without dead ends: 125545 [2018-07-24 01:40:36,248 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1510 GetRequests, 1496 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2018-07-24 01:40:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125545 states. [2018-07-24 01:40:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125545 to 122889. [2018-07-24 01:40:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122889 states. [2018-07-24 01:40:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122889 states to 122889 states and 128199 transitions. [2018-07-24 01:40:37,946 INFO L78 Accepts]: Start accepts. Automaton has 122889 states and 128199 transitions. Word has length 1489 [2018-07-24 01:40:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:40:37,947 INFO L471 AbstractCegarLoop]: Abstraction has 122889 states and 128199 transitions. [2018-07-24 01:40:37,947 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 01:40:37,947 INFO L276 IsEmpty]: Start isEmpty. Operand 122889 states and 128199 transitions. [2018-07-24 01:40:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2031 [2018-07-24 01:40:38,048 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:40:38,049 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:40:38,050 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:40:38,050 INFO L82 PathProgramCache]: Analyzing trace with hash -632764160, now seen corresponding path program 1 times [2018-07-24 01:40:38,050 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:40:38,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:40:38,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:38,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:40:38,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2699 backedges. 1581 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2018-07-24 01:40:41,347 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 01:40:41,347 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 01:40:41,348 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 01:40:41,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 01:40:41,349 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:40:41,349 INFO L87 Difference]: Start difference. First operand 122889 states and 128199 transitions. Second operand 4 states. [2018-07-24 01:40:48,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:40:48,333 INFO L93 Difference]: Finished difference Result 262156 states and 273384 transitions. [2018-07-24 01:40:48,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 01:40:48,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2030 [2018-07-24 01:40:48,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:40:48,535 INFO L225 Difference]: With dead ends: 262156 [2018-07-24 01:40:48,535 INFO L226 Difference]: Without dead ends: 140088 [2018-07-24 01:40:48,625 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 01:40:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140088 states. [2018-07-24 01:40:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140088 to 131894. [2018-07-24 01:40:49,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131894 states. [2018-07-24 01:40:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131894 states to 131894 states and 137093 transitions. [2018-07-24 01:40:49,891 INFO L78 Accepts]: Start accepts. Automaton has 131894 states and 137093 transitions. Word has length 2030 [2018-07-24 01:40:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:40:49,892 INFO L471 AbstractCegarLoop]: Abstraction has 131894 states and 137093 transitions. [2018-07-24 01:40:49,892 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 01:40:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 131894 states and 137093 transitions. [2018-07-24 01:40:49,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2047 [2018-07-24 01:40:49,976 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 01:40:49,977 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 01:40:49,977 INFO L414 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 01:40:49,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1631151741, now seen corresponding path program 1 times [2018-07-24 01:40:49,977 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 01:40:49,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 01:40:49,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:49,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:40:49,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 01:40:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2358 backedges. 1259 proven. 114 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2018-07-24 01:40:56,168 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 01:40:56,168 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 01:40:56,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 01:40:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 01:40:56,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 01:40:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2358 backedges. 1273 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2018-07-24 01:40:59,120 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 01:40:59,121 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-07-24 01:40:59,124 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 01:40:59,124 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 01:40:59,124 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-07-24 01:40:59,125 INFO L87 Difference]: Start difference. First operand 131894 states and 137093 transitions. Second operand 9 states. [2018-07-24 01:41:18,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 01:41:18,528 INFO L93 Difference]: Finished difference Result 264875 states and 275367 transitions. [2018-07-24 01:41:18,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 01:41:18,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 2046 [2018-07-24 01:41:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 01:41:18,529 INFO L225 Difference]: With dead ends: 264875 [2018-07-24 01:41:18,529 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 01:41:18,600 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2067 GetRequests, 2051 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2018-07-24 01:41:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 01:41:18,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 01:41:18,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 01:41:18,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 01:41:18,601 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2046 [2018-07-24 01:41:18,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 01:41:18,601 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 01:41:18,601 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 01:41:18,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 01:41:18,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 01:41:18,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 01:41:18,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:18,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,274 WARN L169 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 452 DAG size of output: 220 [2018-07-24 01:41:19,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:19,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,281 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,415 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,780 WARN L169 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 822 DAG size of output: 376 [2018-07-24 01:41:20,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:20,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,073 WARN L169 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 180 [2018-07-24 01:41:21,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,301 WARN L169 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 309 DAG size of output: 180 [2018-07-24 01:41:21,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,824 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,885 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 01:41:21,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-07-24 01:41:21,954 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 01:41:21,956 INFO L168 Benchmark]: Toolchain (without parser) took 225899.96 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 610.6 MB in the end (delta: 780.2 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,957 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 01:41:21,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2416.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 254.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,960 INFO L168 Benchmark]: Boogie Preprocessor took 756.18 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 881.3 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,962 INFO L168 Benchmark]: RCFGBuilder took 9482.22 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -45.4 MB). Peak memory consumption was 735.9 MB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,963 INFO L168 Benchmark]: TraceAbstraction took 212984.58 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 610.6 MB in the end (delta: 1.7 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-07-24 01:41:21,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2416.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 254.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 756.18 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 881.3 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9482.22 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -45.4 MB). Peak memory consumption was 735.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212984.58 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.3 GB in the beginning and 610.6 MB in the end (delta: 1.7 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4703]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 802. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label44_true-unreach-call_false-termination.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_01-41-21-983.csv Completed graceful shutdown