java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 20:26:18,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 20:26:18,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 20:26:18,026 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 20:26:18,026 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 20:26:18,027 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 20:26:18,029 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 20:26:18,031 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 20:26:18,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 20:26:18,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 20:26:18,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 20:26:18,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 20:26:18,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 20:26:18,048 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 20:26:18,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 20:26:18,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 20:26:18,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 20:26:18,054 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 20:26:18,059 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 20:26:18,062 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 20:26:18,064 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 20:26:18,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 20:26:18,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 20:26:18,067 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 20:26:18,067 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 20:26:18,068 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 20:26:18,069 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 20:26:18,070 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 20:26:18,071 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 20:26:18,072 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 20:26:18,072 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 20:26:18,073 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 20:26:18,073 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 20:26:18,073 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 20:26:18,074 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 20:26:18,075 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 20:26:18,075 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 [2018-11-06 20:26:18,099 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 20:26:18,099 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 20:26:18,100 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 20:26:18,101 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 20:26:18,101 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 20:26:18,101 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 20:26:18,101 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 20:26:18,103 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 20:26:18,103 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 20:26:18,103 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 20:26:18,103 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 20:26:18,103 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 20:26:18,103 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 20:26:18,104 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 20:26:18,104 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 20:26:18,104 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 20:26:18,104 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 20:26:18,104 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 20:26:18,105 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 20:26:18,105 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 20:26:18,105 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 20:26:18,105 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 20:26:18,105 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 20:26:18,106 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 20:26:18,107 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 20:26:18,107 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 20:26:18,107 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 20:26:18,107 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 20:26:18,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 20:26:18,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 20:26:18,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 20:26:18,183 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 20:26:18,184 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 20:26:18,184 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c [2018-11-06 20:26:18,250 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6551018ad/8612b40c86f940519ed54876e4ba1902/FLAG1d1cd4d95 [2018-11-06 20:26:19,162 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 20:26:19,163 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem06_label43_true-unreach-call.c [2018-11-06 20:26:19,222 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6551018ad/8612b40c86f940519ed54876e4ba1902/FLAG1d1cd4d95 [2018-11-06 20:26:19,237 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6551018ad/8612b40c86f940519ed54876e4ba1902 [2018-11-06 20:26:19,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 20:26:19,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 20:26:19,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 20:26:19,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 20:26:19,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 20:26:19,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:26:19" (1/1) ... [2018-11-06 20:26:19,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746a8582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:19, skipping insertion in model container [2018-11-06 20:26:19,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:26:19" (1/1) ... [2018-11-06 20:26:19,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 20:26:19,499 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 20:26:21,646 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:26:21,651 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 20:26:22,872 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:26:22,934 INFO L193 MainTranslator]: Completed translation [2018-11-06 20:26:22,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22 WrapperNode [2018-11-06 20:26:22,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 20:26:22,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 20:26:22,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 20:26:22,936 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 20:26:22,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 20:26:23,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 20:26:23,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 20:26:23,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 20:26:23,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:23,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:24,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (1/1) ... [2018-11-06 20:26:24,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 20:26:24,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 20:26:24,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 20:26:24,128 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 20:26:24,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (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 [2018-11-06 20:26:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 20:26:24,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 20:26:24,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 20:26:35,941 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 20:26:35,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:26:35 BoogieIcfgContainer [2018-11-06 20:26:35,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 20:26:35,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 20:26:35,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 20:26:35,947 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 20:26:35,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:26:19" (1/3) ... [2018-11-06 20:26:35,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb33431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:26:35, skipping insertion in model container [2018-11-06 20:26:35,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:26:22" (2/3) ... [2018-11-06 20:26:35,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb33431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:26:35, skipping insertion in model container [2018-11-06 20:26:35,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:26:35" (3/3) ... [2018-11-06 20:26:35,951 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem06_label43_true-unreach-call.c [2018-11-06 20:26:35,962 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 20:26:35,973 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 20:26:35,992 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 20:26:36,042 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 20:26:36,043 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 20:26:36,043 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 20:26:36,044 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 20:26:36,044 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 20:26:36,044 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 20:26:36,044 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 20:26:36,044 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 20:26:36,044 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 20:26:36,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states. [2018-11-06 20:26:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2018-11-06 20:26:36,165 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:26:36,168 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:26:36,171 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:26:36,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:26:36,179 INFO L82 PathProgramCache]: Analyzing trace with hash -515891681, now seen corresponding path program 1 times [2018-11-06 20:26:36,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:26:36,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:26:36,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:26:36,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:26:36,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:26:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:26:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:26:39,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:26:39,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 20:26:39,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:26:39,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:26:39,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:26:39,696 INFO L87 Difference]: Start difference. First operand 1291 states. Second operand 4 states. [2018-11-06 20:26:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:26:55,307 INFO L93 Difference]: Finished difference Result 4739 states and 8984 transitions. [2018-11-06 20:26:55,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:26:55,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 979 [2018-11-06 20:26:55,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:26:55,360 INFO L225 Difference]: With dead ends: 4739 [2018-11-06 20:26:55,361 INFO L226 Difference]: Without dead ends: 3441 [2018-11-06 20:26:55,369 INFO L604 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 [2018-11-06 20:26:55,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2018-11-06 20:26:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3406. [2018-11-06 20:26:55,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3406 states. [2018-11-06 20:26:55,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 5735 transitions. [2018-11-06 20:26:55,566 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 5735 transitions. Word has length 979 [2018-11-06 20:26:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:26:55,572 INFO L480 AbstractCegarLoop]: Abstraction has 3406 states and 5735 transitions. [2018-11-06 20:26:55,572 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:26:55,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 5735 transitions. [2018-11-06 20:26:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2018-11-06 20:26:55,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:26:55,676 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:26:55,676 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:26:55,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:26:55,677 INFO L82 PathProgramCache]: Analyzing trace with hash -18150319, now seen corresponding path program 1 times [2018-11-06 20:26:55,677 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:26:55,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:26:55,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:26:55,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:26:55,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:26:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:26:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:26:56,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:26:56,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:26:56,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:26:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:26:56,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:26:56,726 INFO L87 Difference]: Start difference. First operand 3406 states and 5735 transitions. Second operand 3 states. [2018-11-06 20:27:04,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:04,237 INFO L93 Difference]: Finished difference Result 9865 states and 16737 transitions. [2018-11-06 20:27:04,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:27:04,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1004 [2018-11-06 20:27:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:04,273 INFO L225 Difference]: With dead ends: 9865 [2018-11-06 20:27:04,273 INFO L226 Difference]: Without dead ends: 6461 [2018-11-06 20:27:04,280 INFO L604 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 [2018-11-06 20:27:04,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6461 states. [2018-11-06 20:27:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6461 to 6443. [2018-11-06 20:27:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6443 states. [2018-11-06 20:27:04,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 10176 transitions. [2018-11-06 20:27:04,421 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 10176 transitions. Word has length 1004 [2018-11-06 20:27:04,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:27:04,422 INFO L480 AbstractCegarLoop]: Abstraction has 6443 states and 10176 transitions. [2018-11-06 20:27:04,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:27:04,422 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 10176 transitions. [2018-11-06 20:27:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1018 [2018-11-06 20:27:04,446 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:27:04,447 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:27:04,447 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:27:04,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:27:04,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1161206629, now seen corresponding path program 1 times [2018-11-06 20:27:04,448 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:27:04,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:27:04,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:04,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:27:04,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:27:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-06 20:27:05,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:27:05,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 20:27:05,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:27:05,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:27:05,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:27:05,157 INFO L87 Difference]: Start difference. First operand 6443 states and 10176 transitions. Second operand 4 states. [2018-11-06 20:27:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:15,301 INFO L93 Difference]: Finished difference Result 24913 states and 39609 transitions. [2018-11-06 20:27:15,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:27:15,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1017 [2018-11-06 20:27:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:15,390 INFO L225 Difference]: With dead ends: 24913 [2018-11-06 20:27:15,390 INFO L226 Difference]: Without dead ends: 18472 [2018-11-06 20:27:15,404 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:27:15,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18472 states. [2018-11-06 20:27:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18472 to 18416. [2018-11-06 20:27:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18416 states. [2018-11-06 20:27:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18416 states to 18416 states and 26950 transitions. [2018-11-06 20:27:15,736 INFO L78 Accepts]: Start accepts. Automaton has 18416 states and 26950 transitions. Word has length 1017 [2018-11-06 20:27:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:27:15,737 INFO L480 AbstractCegarLoop]: Abstraction has 18416 states and 26950 transitions. [2018-11-06 20:27:15,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:27:15,737 INFO L276 IsEmpty]: Start isEmpty. Operand 18416 states and 26950 transitions. [2018-11-06 20:27:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-11-06 20:27:15,786 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:27:15,787 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:27:15,787 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:27:15,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:27:15,790 INFO L82 PathProgramCache]: Analyzing trace with hash -808132497, now seen corresponding path program 1 times [2018-11-06 20:27:15,791 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:27:15,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:27:15,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:15,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:27:15,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:27:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-06 20:27:16,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:27:16,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:27:16,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:27:16,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:27:16,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:27:16,708 INFO L87 Difference]: Start difference. First operand 18416 states and 26950 transitions. Second operand 3 states. [2018-11-06 20:27:23,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:23,853 INFO L93 Difference]: Finished difference Result 54907 states and 80424 transitions. [2018-11-06 20:27:23,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:27:23,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1036 [2018-11-06 20:27:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:23,929 INFO L225 Difference]: With dead ends: 54907 [2018-11-06 20:27:23,930 INFO L226 Difference]: Without dead ends: 36493 [2018-11-06 20:27:23,959 INFO L604 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 [2018-11-06 20:27:23,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36493 states. [2018-11-06 20:27:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36493 to 36477. [2018-11-06 20:27:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36477 states. [2018-11-06 20:27:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36477 states to 36477 states and 50205 transitions. [2018-11-06 20:27:24,470 INFO L78 Accepts]: Start accepts. Automaton has 36477 states and 50205 transitions. Word has length 1036 [2018-11-06 20:27:24,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:27:24,471 INFO L480 AbstractCegarLoop]: Abstraction has 36477 states and 50205 transitions. [2018-11-06 20:27:24,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:27:24,471 INFO L276 IsEmpty]: Start isEmpty. Operand 36477 states and 50205 transitions. [2018-11-06 20:27:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1046 [2018-11-06 20:27:24,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:27:24,542 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:27:24,542 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:27:24,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:27:24,543 INFO L82 PathProgramCache]: Analyzing trace with hash 866994924, now seen corresponding path program 1 times [2018-11-06 20:27:24,543 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:27:24,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:27:24,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:24,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:27:24,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:27:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-06 20:27:26,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:27:26,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:27:26,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:27:26,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:27:26,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:27:26,051 INFO L87 Difference]: Start difference. First operand 36477 states and 50205 transitions. Second operand 3 states. [2018-11-06 20:27:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:32,971 INFO L93 Difference]: Finished difference Result 108851 states and 149876 transitions. [2018-11-06 20:27:32,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:27:32,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1045 [2018-11-06 20:27:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:33,117 INFO L225 Difference]: With dead ends: 108851 [2018-11-06 20:27:33,117 INFO L226 Difference]: Without dead ends: 72376 [2018-11-06 20:27:33,169 INFO L604 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 [2018-11-06 20:27:33,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72376 states. [2018-11-06 20:27:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72376 to 72342. [2018-11-06 20:27:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72342 states. [2018-11-06 20:27:34,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72342 states to 72342 states and 93865 transitions. [2018-11-06 20:27:34,002 INFO L78 Accepts]: Start accepts. Automaton has 72342 states and 93865 transitions. Word has length 1045 [2018-11-06 20:27:34,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:27:34,002 INFO L480 AbstractCegarLoop]: Abstraction has 72342 states and 93865 transitions. [2018-11-06 20:27:34,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:27:34,003 INFO L276 IsEmpty]: Start isEmpty. Operand 72342 states and 93865 transitions. [2018-11-06 20:27:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2018-11-06 20:27:34,093 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:27:34,094 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:27:34,094 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:27:34,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:27:34,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1087228027, now seen corresponding path program 1 times [2018-11-06 20:27:34,095 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:27:34,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:27:34,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:34,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:27:34,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:27:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:27:35,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:27:35,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 20:27:35,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:27:35,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:27:35,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:27:35,595 INFO L87 Difference]: Start difference. First operand 72342 states and 93865 transitions. Second operand 3 states. [2018-11-06 20:27:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:43,278 INFO L93 Difference]: Finished difference Result 215398 states and 279379 transitions. [2018-11-06 20:27:43,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:27:43,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1069 [2018-11-06 20:27:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:43,475 INFO L225 Difference]: With dead ends: 215398 [2018-11-06 20:27:43,476 INFO L226 Difference]: Without dead ends: 143058 [2018-11-06 20:27:43,548 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:27:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143058 states. [2018-11-06 20:27:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143058 to 142931. [2018-11-06 20:27:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142931 states. [2018-11-06 20:27:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142931 states to 142931 states and 174391 transitions. [2018-11-06 20:27:45,457 INFO L78 Accepts]: Start accepts. Automaton has 142931 states and 174391 transitions. Word has length 1069 [2018-11-06 20:27:45,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:27:45,458 INFO L480 AbstractCegarLoop]: Abstraction has 142931 states and 174391 transitions. [2018-11-06 20:27:45,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:27:45,458 INFO L276 IsEmpty]: Start isEmpty. Operand 142931 states and 174391 transitions. [2018-11-06 20:27:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2018-11-06 20:27:45,616 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:27:45,618 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:27:45,618 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:27:45,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:27:45,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1174798903, now seen corresponding path program 1 times [2018-11-06 20:27:45,619 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:27:45,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:27:45,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:45,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:27:45,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:27:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:27:46,277 WARN L179 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 7 [2018-11-06 20:27:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-06 20:27:47,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:27:47,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 20:27:47,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:27:47,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:27:47,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:27:47,540 INFO L87 Difference]: Start difference. First operand 142931 states and 174391 transitions. Second operand 4 states. [2018-11-06 20:27:58,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:27:58,774 INFO L93 Difference]: Finished difference Result 429537 states and 515695 transitions. [2018-11-06 20:27:58,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:27:58,776 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1093 [2018-11-06 20:27:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:27:59,235 INFO L225 Difference]: With dead ends: 429537 [2018-11-06 20:27:59,235 INFO L226 Difference]: Without dead ends: 286608 [2018-11-06 20:27:59,378 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:27:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286608 states. [2018-11-06 20:28:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286608 to 214743. [2018-11-06 20:28:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214743 states. [2018-11-06 20:28:02,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214743 states to 214743 states and 257470 transitions. [2018-11-06 20:28:02,656 INFO L78 Accepts]: Start accepts. Automaton has 214743 states and 257470 transitions. Word has length 1093 [2018-11-06 20:28:02,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:28:02,657 INFO L480 AbstractCegarLoop]: Abstraction has 214743 states and 257470 transitions. [2018-11-06 20:28:02,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:28:02,657 INFO L276 IsEmpty]: Start isEmpty. Operand 214743 states and 257470 transitions. [2018-11-06 20:28:02,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2018-11-06 20:28:02,844 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:28:02,844 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:28:02,845 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:28:02,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:28:02,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1823242155, now seen corresponding path program 1 times [2018-11-06 20:28:02,846 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:28:02,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:28:02,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:28:02,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:28:02,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:28:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:28:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 203 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-11-06 20:28:04,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:28:04,804 INFO L225 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 [2018-11-06 20:28:04,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:28:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:28:05,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:28:06,413 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 197 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-06 20:28:06,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:28:06,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 20:28:06,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:28:06,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:28:06,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:28:06,443 INFO L87 Difference]: Start difference. First operand 214743 states and 257470 transitions. Second operand 5 states. [2018-11-06 20:28:23,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:28:23,384 INFO L93 Difference]: Finished difference Result 532105 states and 642947 transitions. [2018-11-06 20:28:23,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 20:28:23,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1114 [2018-11-06 20:28:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:28:23,849 INFO L225 Difference]: With dead ends: 532105 [2018-11-06 20:28:23,849 INFO L226 Difference]: Without dead ends: 317364 [2018-11-06 20:28:23,977 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1122 GetRequests, 1116 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 20:28:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317364 states. [2018-11-06 20:28:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317364 to 317192. [2018-11-06 20:28:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317192 states. [2018-11-06 20:28:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317192 states to 317192 states and 361383 transitions. [2018-11-06 20:28:29,857 INFO L78 Accepts]: Start accepts. Automaton has 317192 states and 361383 transitions. Word has length 1114 [2018-11-06 20:28:29,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:28:29,857 INFO L480 AbstractCegarLoop]: Abstraction has 317192 states and 361383 transitions. [2018-11-06 20:28:29,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:28:29,858 INFO L276 IsEmpty]: Start isEmpty. Operand 317192 states and 361383 transitions. [2018-11-06 20:28:30,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2018-11-06 20:28:30,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:28:30,122 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:28:30,122 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:28:30,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:28:30,123 INFO L82 PathProgramCache]: Analyzing trace with hash -273556148, now seen corresponding path program 1 times [2018-11-06 20:28:30,123 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:28:30,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:28:30,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:28:30,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:28:30,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:28:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:28:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 217 proven. 8 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-06 20:28:37,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:28:37,082 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:28:37,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:28:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:28:37,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:28:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-11-06 20:28:38,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:28:38,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-11-06 20:28:38,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:28:38,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:28:38,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:28:38,480 INFO L87 Difference]: Start difference. First operand 317192 states and 361383 transitions. Second operand 4 states. [2018-11-06 20:28:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:28:49,851 INFO L93 Difference]: Finished difference Result 1265515 states and 1441792 transitions. [2018-11-06 20:28:49,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:28:49,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1145 [2018-11-06 20:28:49,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:28:52,135 INFO L225 Difference]: With dead ends: 1265515 [2018-11-06 20:28:52,135 INFO L226 Difference]: Without dead ends: 948325 [2018-11-06 20:28:52,404 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1148 GetRequests, 1145 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:28:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948325 states. [2018-11-06 20:29:03,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948325 to 632179. [2018-11-06 20:29:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632179 states. [2018-11-06 20:29:04,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632179 states to 632179 states and 720009 transitions. [2018-11-06 20:29:04,268 INFO L78 Accepts]: Start accepts. Automaton has 632179 states and 720009 transitions. Word has length 1145 [2018-11-06 20:29:04,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:29:04,268 INFO L480 AbstractCegarLoop]: Abstraction has 632179 states and 720009 transitions. [2018-11-06 20:29:04,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:29:04,268 INFO L276 IsEmpty]: Start isEmpty. Operand 632179 states and 720009 transitions. [2018-11-06 20:29:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1149 [2018-11-06 20:29:05,006 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:29:05,007 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:29:05,007 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:29:05,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:29:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1071662631, now seen corresponding path program 1 times [2018-11-06 20:29:05,008 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:29:05,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:29:05,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:29:05,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:29:05,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:29:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:29:05,711 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-11-06 20:29:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-11-06 20:29:12,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:29:12,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 20:29:12,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:29:12,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:29:12,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:29:12,817 INFO L87 Difference]: Start difference. First operand 632179 states and 720009 transitions. Second operand 5 states. [2018-11-06 20:29:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:29:33,798 INFO L93 Difference]: Finished difference Result 1784733 states and 2055932 transitions. [2018-11-06 20:29:33,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 20:29:33,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1148 [2018-11-06 20:29:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:29:36,812 INFO L225 Difference]: With dead ends: 1784733 [2018-11-06 20:29:36,812 INFO L226 Difference]: Without dead ends: 1152556 [2018-11-06 20:29:37,050 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:29:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152556 states. Received shutdown request... [2018-11-06 20:29:49,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152556 to 1049832. [2018-11-06 20:29:49,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1049832 states. [2018-11-06 20:29:49,594 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 20:29:49,598 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 20:29:49,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:29:49 BoogieIcfgContainer [2018-11-06 20:29:49,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 20:29:49,600 INFO L168 Benchmark]: Toolchain (without parser) took 210350.14 ms. Allocated memory was 1.5 GB in the beginning and 5.8 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -192.4 MB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,601 INFO L168 Benchmark]: CDTParser took 1.74 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 20:29:49,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3682.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 749.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.4 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,603 INFO L168 Benchmark]: Boogie Preprocessor took 441.03 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,605 INFO L168 Benchmark]: RCFGBuilder took 11815.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 206.6 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 453.4 MB). Peak memory consumption was 660.0 MB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,606 INFO L168 Benchmark]: TraceAbstraction took 193656.03 ms. Allocated memory was 2.6 GB in the beginning and 5.8 GB in the end (delta: 3.2 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 110.5 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-11-06 20:29:49,612 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3682.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 359.4 MB). Peak memory consumption was 359.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 749.86 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.4 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 441.03 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11815.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 206.6 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 453.4 MB). Peak memory consumption was 660.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 193656.03 ms. Allocated memory was 2.6 GB in the beginning and 5.8 GB in the end (delta: 3.2 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 110.5 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 9426]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 9426). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1291 locations, 1 error locations. TIMEOUT Result, 193.5s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 123.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11958 SDtfs, 27980 SDslu, 8322 SDs, 0 SdLazy, 48088 SolverSat, 13902 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2297 GetRequests, 2271 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=632179occurred 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: 37.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 388469 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 12909 NumberOfCodeBlocks, 12909 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 12897 ConstructedInterpolants, 0 QuantifiedInterpolants, 18856474 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2901 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 2024/2037 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown