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/Problem06_label59_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:06:34,861 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:06:34,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:06:34,879 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:06:34,880 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:06:34,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:06:34,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:06:34,886 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:06:34,888 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:06:34,889 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:06:34,890 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:06:34,891 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:06:34,892 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:06:34,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:06:34,896 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:06:34,897 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:06:34,898 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:06:34,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:06:34,912 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:06:34,914 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:06:34,915 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:06:34,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:06:34,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:06:34,919 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:06:34,919 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:06:34,920 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:06:34,920 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:06:34,921 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:06:34,922 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:06:34,923 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:06:34,923 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:06:34,924 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 00:06:34,924 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 00:06:34,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 00:06:34,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 00:06:34,926 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 00:06:34,926 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 00:06:34,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:06:34,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:06:34,949 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:06:34,949 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:06:34,950 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:06:34,950 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:06:34,950 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:06:34,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:06:34,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:06:34,951 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:06:34,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:06:34,952 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:06:34,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:06:34,952 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:06:34,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:06:34,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:06:34,954 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:06:34,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:06:34,955 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:06:34,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:06:34,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:06:34,955 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:06:34,956 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:06:35,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:06:35,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:06:35,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:06:35,025 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:06:35,026 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:06:35,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label59_false-unreach-call.c [2018-07-24 00:06:35,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4b77c87/cd12d3a0b0374ddcb642bc0bf97678fd/FLAG823902209 [2018-07-24 00:06:35,925 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:06:35,926 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label59_false-unreach-call.c [2018-07-24 00:06:35,979 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4b77c87/cd12d3a0b0374ddcb642bc0bf97678fd/FLAG823902209 [2018-07-24 00:06:35,995 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df4b77c87/cd12d3a0b0374ddcb642bc0bf97678fd [2018-07-24 00:06:36,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:06:36,009 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:06:36,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:06:36,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:06:36,018 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:06:36,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:06:35" (1/1) ... [2018-07-24 00:06:36,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37282a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:36, skipping insertion in model container [2018-07-24 00:06:36,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:06:35" (1/1) ... [2018-07-24 00:06:36,516 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:06:38,176 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:06:38,197 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:06:39,326 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:06:39,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39 WrapperNode [2018-07-24 00:06:39,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:06:39,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:06:39,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:06:39,608 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:06:39,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:39,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:40,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:06:40,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:06:40,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:06:40,091 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:06:40,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:40,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (1/1) ... [2018-07-24 00:06:41,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:06:41,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:06:41,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:06:41,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:06:41,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (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 00:06:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:06:41,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:06:41,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:06:52,554 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:06:52,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:06:52 BoogieIcfgContainer [2018-07-24 00:06:52,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:06:52,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:06:52,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:06:52,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:06:52,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:06:35" (1/3) ... [2018-07-24 00:06:52,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:06:52, skipping insertion in model container [2018-07-24 00:06:52,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:06:39" (2/3) ... [2018-07-24 00:06:52,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6a5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:06:52, skipping insertion in model container [2018-07-24 00:06:52,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:06:52" (3/3) ... [2018-07-24 00:06:52,567 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label59_false-unreach-call.c [2018-07-24 00:06:52,576 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:06:52,586 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:06:52,653 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:06:52,654 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:06:52,654 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:06:52,654 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:06:52,654 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:06:52,654 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:06:52,655 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:06:52,655 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:06:52,655 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:06:52,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states. [2018-07-24 00:06:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2018-07-24 00:06:52,759 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:06:52,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:52,762 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:06:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1887638577, now seen corresponding path program 1 times [2018-07-24 00:06:52,770 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:06:52,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:06:52,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:06:52,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:06:52,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:06:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:06:55,769 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 00:06:55,772 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:06:55,772 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:06:55,778 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:06:55,792 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:06:55,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:06:55,795 INFO L87 Difference]: Start difference. First operand 1291 states. Second operand 4 states. [2018-07-24 00:07:11,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:11,221 INFO L93 Difference]: Finished difference Result 4733 states and 9001 transitions. [2018-07-24 00:07:11,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:07:11,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 943 [2018-07-24 00:07:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:11,275 INFO L225 Difference]: With dead ends: 4733 [2018-07-24 00:07:11,275 INFO L226 Difference]: Without dead ends: 3435 [2018-07-24 00:07:11,285 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 00:07:11,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-07-24 00:07:11,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3351. [2018-07-24 00:07:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3351 states. [2018-07-24 00:07:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5794 transitions. [2018-07-24 00:07:11,499 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5794 transitions. Word has length 943 [2018-07-24 00:07:11,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:11,503 INFO L471 AbstractCegarLoop]: Abstraction has 3351 states and 5794 transitions. [2018-07-24 00:07:11,504 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:07:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5794 transitions. [2018-07-24 00:07:11,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2018-07-24 00:07:11,594 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:11,595 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:11,596 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:11,596 INFO L82 PathProgramCache]: Analyzing trace with hash -102825415, now seen corresponding path program 1 times [2018-07-24 00:07:11,596 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:11,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:11,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:11,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:11,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:12,291 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 00:07:12,291 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:07:12,292 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:07:12,295 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:07:12,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:07:12,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:07:12,296 INFO L87 Difference]: Start difference. First operand 3351 states and 5794 transitions. Second operand 3 states. [2018-07-24 00:07:17,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:17,090 INFO L93 Difference]: Finished difference Result 10028 states and 17357 transitions. [2018-07-24 00:07:17,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:07:17,091 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 957 [2018-07-24 00:07:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:17,126 INFO L225 Difference]: With dead ends: 10028 [2018-07-24 00:07:17,127 INFO L226 Difference]: Without dead ends: 6679 [2018-07-24 00:07:17,132 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 00:07:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2018-07-24 00:07:17,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6675. [2018-07-24 00:07:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6675 states. [2018-07-24 00:07:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 11531 transitions. [2018-07-24 00:07:17,281 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 11531 transitions. Word has length 957 [2018-07-24 00:07:17,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:17,282 INFO L471 AbstractCegarLoop]: Abstraction has 6675 states and 11531 transitions. [2018-07-24 00:07:17,282 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:07:17,282 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 11531 transitions. [2018-07-24 00:07:17,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 960 [2018-07-24 00:07:17,305 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:17,306 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:17,306 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:17,307 INFO L82 PathProgramCache]: Analyzing trace with hash 738340064, now seen corresponding path program 1 times [2018-07-24 00:07:17,307 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:17,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:17,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:17,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:17,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:17,901 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:07:17,901 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:07:17,902 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:07:17,903 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:07:17,903 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:07:17,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:07:17,904 INFO L87 Difference]: Start difference. First operand 6675 states and 11531 transitions. Second operand 3 states. [2018-07-24 00:07:25,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:25,161 INFO L93 Difference]: Finished difference Result 19439 states and 33818 transitions. [2018-07-24 00:07:25,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:07:25,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 959 [2018-07-24 00:07:25,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:25,216 INFO L225 Difference]: With dead ends: 19439 [2018-07-24 00:07:25,216 INFO L226 Difference]: Without dead ends: 12766 [2018-07-24 00:07:25,225 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 00:07:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2018-07-24 00:07:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 12735. [2018-07-24 00:07:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12735 states. [2018-07-24 00:07:25,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12735 states to 12735 states and 20493 transitions. [2018-07-24 00:07:25,438 INFO L78 Accepts]: Start accepts. Automaton has 12735 states and 20493 transitions. Word has length 959 [2018-07-24 00:07:25,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:25,439 INFO L471 AbstractCegarLoop]: Abstraction has 12735 states and 20493 transitions. [2018-07-24 00:07:25,439 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:07:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12735 states and 20493 transitions. [2018-07-24 00:07:25,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2018-07-24 00:07:25,473 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:25,474 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:25,474 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:25,475 INFO L82 PathProgramCache]: Analyzing trace with hash 2062531242, now seen corresponding path program 1 times [2018-07-24 00:07:25,475 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:25,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:25,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:25,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:25,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:07:26,067 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:07:26,067 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:07:26,068 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:07:26,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:07:26,069 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:07:26,069 INFO L87 Difference]: Start difference. First operand 12735 states and 20493 transitions. Second operand 3 states. [2018-07-24 00:07:33,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:33,226 INFO L93 Difference]: Finished difference Result 37458 states and 60534 transitions. [2018-07-24 00:07:33,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:07:33,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 963 [2018-07-24 00:07:33,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:33,290 INFO L225 Difference]: With dead ends: 37458 [2018-07-24 00:07:33,290 INFO L226 Difference]: Without dead ends: 24725 [2018-07-24 00:07:33,311 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 00:07:33,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24725 states. [2018-07-24 00:07:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24725 to 24683. [2018-07-24 00:07:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24683 states. [2018-07-24 00:07:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24683 states to 24683 states and 36335 transitions. [2018-07-24 00:07:33,725 INFO L78 Accepts]: Start accepts. Automaton has 24683 states and 36335 transitions. Word has length 963 [2018-07-24 00:07:33,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:33,726 INFO L471 AbstractCegarLoop]: Abstraction has 24683 states and 36335 transitions. [2018-07-24 00:07:33,726 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:07:33,726 INFO L276 IsEmpty]: Start isEmpty. Operand 24683 states and 36335 transitions. [2018-07-24 00:07:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2018-07-24 00:07:34,058 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:34,059 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:34,059 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:34,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1469970548, now seen corresponding path program 1 times [2018-07-24 00:07:34,060 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:34,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:34,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:34,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:34,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:34,568 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:07:34,569 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:07:34,569 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:07:34,571 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:07:34,571 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:07:34,571 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:07:34,571 INFO L87 Difference]: Start difference. First operand 24683 states and 36335 transitions. Second operand 3 states. [2018-07-24 00:07:41,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:41,897 INFO L93 Difference]: Finished difference Result 73318 states and 108069 transitions. [2018-07-24 00:07:41,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:07:41,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 967 [2018-07-24 00:07:41,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:41,968 INFO L225 Difference]: With dead ends: 73318 [2018-07-24 00:07:41,968 INFO L226 Difference]: Without dead ends: 48637 [2018-07-24 00:07:42,006 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 00:07:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48637 states. [2018-07-24 00:07:43,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48637 to 48617. [2018-07-24 00:07:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48617 states. [2018-07-24 00:07:43,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48617 states to 48617 states and 67310 transitions. [2018-07-24 00:07:43,085 INFO L78 Accepts]: Start accepts. Automaton has 48617 states and 67310 transitions. Word has length 967 [2018-07-24 00:07:43,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:43,085 INFO L471 AbstractCegarLoop]: Abstraction has 48617 states and 67310 transitions. [2018-07-24 00:07:43,085 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:07:43,086 INFO L276 IsEmpty]: Start isEmpty. Operand 48617 states and 67310 transitions. [2018-07-24 00:07:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 975 [2018-07-24 00:07:43,157 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:43,158 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:43,158 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1978443662, now seen corresponding path program 1 times [2018-07-24 00:07:43,159 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:43,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:43,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:43,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:43,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-07-24 00:07:43,910 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:07:43,910 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:07:43,912 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:07:43,912 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:07:43,912 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:07:43,913 INFO L87 Difference]: Start difference. First operand 48617 states and 67310 transitions. Second operand 3 states. [2018-07-24 00:07:53,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:07:53,716 INFO L93 Difference]: Finished difference Result 145061 states and 200933 transitions. [2018-07-24 00:07:53,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:07:53,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 974 [2018-07-24 00:07:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:07:53,825 INFO L225 Difference]: With dead ends: 145061 [2018-07-24 00:07:53,825 INFO L226 Difference]: Without dead ends: 96446 [2018-07-24 00:07:53,857 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 00:07:53,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96446 states. [2018-07-24 00:07:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96446 to 96407. [2018-07-24 00:07:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96407 states. [2018-07-24 00:07:54,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96407 states to 96407 states and 125574 transitions. [2018-07-24 00:07:54,781 INFO L78 Accepts]: Start accepts. Automaton has 96407 states and 125574 transitions. Word has length 974 [2018-07-24 00:07:54,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:07:54,781 INFO L471 AbstractCegarLoop]: Abstraction has 96407 states and 125574 transitions. [2018-07-24 00:07:54,781 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:07:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 96407 states and 125574 transitions. [2018-07-24 00:07:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2018-07-24 00:07:54,875 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:07:54,876 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:07:54,876 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:07:54,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1872044948, now seen corresponding path program 1 times [2018-07-24 00:07:54,877 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:07:54,877 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:07:54,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:54,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:54,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:07:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 00:07:55,724 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:07:55,724 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 00:07:55,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:07:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:07:56,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:07:57,176 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-07-24 00:07:57,198 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:07:57,199 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-07-24 00:07:57,202 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:07:57,203 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:07:57,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:07:57,203 INFO L87 Difference]: Start difference. First operand 96407 states and 125574 transitions. Second operand 5 states. [2018-07-24 00:08:12,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:08:12,748 INFO L93 Difference]: Finished difference Result 381009 states and 495750 transitions. [2018-07-24 00:08:12,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:08:12,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 991 [2018-07-24 00:08:12,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:08:13,252 INFO L225 Difference]: With dead ends: 381009 [2018-07-24 00:08:13,253 INFO L226 Difference]: Without dead ends: 284604 [2018-07-24 00:08:13,358 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 994 GetRequests, 990 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 00:08:13,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284604 states. [2018-07-24 00:08:16,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284604 to 284492. [2018-07-24 00:08:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284492 states. [2018-07-24 00:08:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284492 states to 284492 states and 351427 transitions. [2018-07-24 00:08:18,479 INFO L78 Accepts]: Start accepts. Automaton has 284492 states and 351427 transitions. Word has length 991 [2018-07-24 00:08:18,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:08:18,480 INFO L471 AbstractCegarLoop]: Abstraction has 284492 states and 351427 transitions. [2018-07-24 00:08:18,480 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:08:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 284492 states and 351427 transitions. [2018-07-24 00:08:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2018-07-24 00:08:18,903 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:08:18,904 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:18,904 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:08:18,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1234750966, now seen corresponding path program 1 times [2018-07-24 00:08:18,905 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:08:18,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:08:18,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:08:18,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:08:18,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:08:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:08:19,609 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 00:08:19,609 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:08:19,609 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 00:08:19,610 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:08:19,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:08:19,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:08:19,611 INFO L87 Difference]: Start difference. First operand 284492 states and 351427 transitions. Second operand 3 states. [2018-07-24 00:08:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:08:29,802 INFO L93 Difference]: Finished difference Result 710528 states and 869625 transitions. [2018-07-24 00:08:29,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:08:29,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1001 [2018-07-24 00:08:29,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:08:30,372 INFO L225 Difference]: With dead ends: 710528 [2018-07-24 00:08:30,372 INFO L226 Difference]: Without dead ends: 426038 [2018-07-24 00:08:30,594 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:08:30,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426038 states. [2018-07-24 00:08:42,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426038 to 425997. [2018-07-24 00:08:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425997 states. [2018-07-24 00:08:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425997 states to 425997 states and 517241 transitions. [2018-07-24 00:08:43,441 INFO L78 Accepts]: Start accepts. Automaton has 425997 states and 517241 transitions. Word has length 1001 [2018-07-24 00:08:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:08:43,441 INFO L471 AbstractCegarLoop]: Abstraction has 425997 states and 517241 transitions. [2018-07-24 00:08:43,441 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:08:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 425997 states and 517241 transitions. [2018-07-24 00:08:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2018-07-24 00:08:43,739 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:08:43,740 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:08:43,740 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:08:43,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1154136961, now seen corresponding path program 1 times [2018-07-24 00:08:43,741 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:08:43,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:08:43,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:08:43,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:08:43,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:08:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:08:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:08:48,527 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:08:48,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:08:48,528 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:08:48,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:08:48,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:08:48,528 INFO L87 Difference]: Start difference. First operand 425997 states and 517241 transitions. Second operand 4 states. [2018-07-24 00:09:03,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:09:03,828 INFO L93 Difference]: Finished difference Result 1036128 states and 1264876 transitions. [2018-07-24 00:09:03,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:09:03,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1010 [2018-07-24 00:09:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:09:04,678 INFO L225 Difference]: With dead ends: 1036128 [2018-07-24 00:09:04,678 INFO L226 Difference]: Without dead ends: 610133 [2018-07-24 00:09:04,803 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 00:09:05,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610133 states. [2018-07-24 00:09:18,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610133 to 609953. [2018-07-24 00:09:18,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609953 states. [2018-07-24 00:09:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609953 states to 609953 states and 701987 transitions. [2018-07-24 00:09:19,523 INFO L78 Accepts]: Start accepts. Automaton has 609953 states and 701987 transitions. Word has length 1010 [2018-07-24 00:09:19,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:09:19,524 INFO L471 AbstractCegarLoop]: Abstraction has 609953 states and 701987 transitions. [2018-07-24 00:09:19,524 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:09:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 609953 states and 701987 transitions. [2018-07-24 00:09:19,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2018-07-24 00:09:19,841 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:09:19,842 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:09:19,842 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:09:19,842 INFO L82 PathProgramCache]: Analyzing trace with hash -887614599, now seen corresponding path program 1 times [2018-07-24 00:09:19,843 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:09:19,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:09:19,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:09:19,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:09:19,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:09:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:09:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-24 00:09:22,433 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:09:22,433 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:09:22,434 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:09:22,434 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:09:22,434 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:09:22,435 INFO L87 Difference]: Start difference. First operand 609953 states and 701987 transitions. Second operand 4 states. [2018-07-24 00:09:44,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:09:44,060 INFO L93 Difference]: Finished difference Result 1840303 states and 2093401 transitions. [2018-07-24 00:09:44,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:09:44,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1063 [2018-07-24 00:09:44,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:09:46,304 INFO L225 Difference]: With dead ends: 1840303 [2018-07-24 00:09:46,304 INFO L226 Difference]: Without dead ends: 1230352 [2018-07-24 00:09:46,755 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 00:09:47,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230352 states. Received shutdown request... [2018-07-24 00:10:02,657 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:10:02,664 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:10:02,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:10:02 BoogieIcfgContainer [2018-07-24 00:10:02,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:10:02,666 INFO L168 Benchmark]: Toolchain (without parser) took 206657.35 ms. Allocated memory was 1.5 GB in the beginning and 6.4 GB in the end (delta: 4.9 GB). Free memory was 1.4 GB in the beginning and 4.3 GB in the end (delta: -2.9 GB). Peak memory consumption was 4.8 GB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,668 INFO L168 Benchmark]: CDTParser took 0.22 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 00:10:02,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3596.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 976.5 MB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 482.72 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 214.4 MB). Free memory was 976.5 MB in the beginning and 1.6 GB in the end (delta: -586.6 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,670 INFO L168 Benchmark]: Boogie Preprocessor took 1255.40 ms. Allocated memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: 645.4 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -622.6 MB). Peak memory consumption was 110.9 MB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,671 INFO L168 Benchmark]: RCFGBuilder took 11209.26 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 341.3 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 139.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,672 INFO L168 Benchmark]: TraceAbstraction took 190108.55 ms. Allocated memory was 2.7 GB in the beginning and 6.4 GB in the end (delta: 3.7 GB). Free memory was 2.0 GB in the beginning and 4.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. [2018-07-24 00:10:02,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3596.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 976.5 MB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 482.72 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 214.4 MB). Free memory was 976.5 MB in the beginning and 1.6 GB in the end (delta: -586.6 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1255.40 ms. Allocated memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: 645.4 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -622.6 MB). Peak memory consumption was 110.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11209.26 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 341.3 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 139.9 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 190108.55 ms. Allocated memory was 2.7 GB in the beginning and 6.4 GB in the end (delta: 3.7 GB). Free memory was 2.0 GB in the beginning and 4.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9318]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9318). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1291 locations, 1 error locations. TIMEOUT Result, 190.0s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 120.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11614 SDtfs, 19587 SDslu, 4405 SDs, 0 SdLazy, 39537 SolverSat, 11366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 79.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1020 GetRequests, 1000 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609953occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 51.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 553 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 2.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 10819 NumberOfCodeBlocks, 10819 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 10808 ConstructedInterpolants, 0 QuantifiedInterpolants, 16910930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1233 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 641/646 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem06_label59_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-10-02-701.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem06_label59_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-10-02-701.csv Completed graceful shutdown