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/Problem04_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 20:08:49,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 20:08:49,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 20:08:49,044 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 20:08:49,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 20:08:49,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 20:08:49,049 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 20:08:49,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 20:08:49,055 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 20:08:49,056 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 20:08:49,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 20:08:49,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 20:08:49,061 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 20:08:49,063 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 20:08:49,066 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 20:08:49,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 20:08:49,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 20:08:49,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 20:08:49,084 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 20:08:49,086 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 20:08:49,088 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 20:08:49,089 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 20:08:49,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 20:08:49,097 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 20:08:49,097 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 20:08:49,098 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 20:08:49,099 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 20:08:49,100 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 20:08:49,103 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 20:08:49,104 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 20:08:49,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 20:08:49,107 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 20:08:49,107 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 20:08:49,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 20:08:49,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 20:08:49,109 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 20:08:49,111 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 20:08:49,136 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 20:08:49,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 20:08:49,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 20:08:49,138 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 20:08:49,139 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 20:08:49,139 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 20:08:49,139 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 20:08:49,139 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 20:08:49,139 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 20:08:49,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 20:08:49,141 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 20:08:49,141 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 20:08:49,141 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 20:08:49,141 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 20:08:49,142 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 20:08:49,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 20:08:49,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 20:08:49,142 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 20:08:49,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 20:08:49,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 20:08:49,144 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 20:08:49,144 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 20:08:49,144 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 20:08:49,144 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 20:08:49,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 20:08:49,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 20:08:49,145 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 20:08:49,146 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 20:08:49,217 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 20:08:49,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 20:08:49,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 20:08:49,241 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 20:08:49,242 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 20:08:49,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label50_true-unreach-call.c [2018-11-06 20:08:49,309 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd6600e/4b830a00e4174730b59678aaabff40da/FLAGe3d6109c8 [2018-11-06 20:08:50,145 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 20:08:50,146 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label50_true-unreach-call.c [2018-11-06 20:08:50,174 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd6600e/4b830a00e4174730b59678aaabff40da/FLAGe3d6109c8 [2018-11-06 20:08:50,196 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05fd6600e/4b830a00e4174730b59678aaabff40da [2018-11-06 20:08:50,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 20:08:50,211 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 20:08:50,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 20:08:50,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 20:08:50,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 20:08:50,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:50" (1/1) ... [2018-11-06 20:08:50,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e529910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:50, skipping insertion in model container [2018-11-06 20:08:50,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:50" (1/1) ... [2018-11-06 20:08:50,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 20:08:50,405 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 20:08:51,808 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:08:51,814 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 20:08:52,476 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:08:52,519 INFO L193 MainTranslator]: Completed translation [2018-11-06 20:08:52,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52 WrapperNode [2018-11-06 20:08:52,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 20:08:52,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 20:08:52,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 20:08:52,521 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 20:08:52,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:52,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 20:08:53,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 20:08:53,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 20:08:53,060 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 20:08:53,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (1/1) ... [2018-11-06 20:08:53,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 20:08:53,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 20:08:53,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 20:08:53,273 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 20:08:53,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (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 20:08:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 20:08:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 20:08:53,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 20:09:02,011 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 20:09:02,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:02 BoogieIcfgContainer [2018-11-06 20:09:02,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 20:09:02,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 20:09:02,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 20:09:02,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 20:09:02,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:08:50" (1/3) ... [2018-11-06 20:09:02,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35669928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:02, skipping insertion in model container [2018-11-06 20:09:02,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:52" (2/3) ... [2018-11-06 20:09:02,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35669928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:09:02, skipping insertion in model container [2018-11-06 20:09:02,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:09:02" (3/3) ... [2018-11-06 20:09:02,021 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label50_true-unreach-call.c [2018-11-06 20:09:02,031 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 20:09:02,042 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 20:09:02,060 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 20:09:02,107 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 20:09:02,107 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 20:09:02,108 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 20:09:02,108 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 20:09:02,108 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 20:09:02,108 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 20:09:02,108 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 20:09:02,108 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 20:09:02,109 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 20:09:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-11-06 20:09:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2018-11-06 20:09:02,199 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:02,201 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] [2018-11-06 20:09:02,204 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:02,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:02,211 INFO L82 PathProgramCache]: Analyzing trace with hash -865156755, now seen corresponding path program 1 times [2018-11-06 20:09:02,213 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:02,214 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:02,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:02,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:04,228 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 20:09:04,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:09:04,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:09:04,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:09:04,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:09:04,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:09:04,254 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 3 states. [2018-11-06 20:09:10,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:10,727 INFO L93 Difference]: Finished difference Result 2592 states and 5031 transitions. [2018-11-06 20:09:10,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:09:10,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 817 [2018-11-06 20:09:10,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:10,773 INFO L225 Difference]: With dead ends: 2592 [2018-11-06 20:09:10,773 INFO L226 Difference]: Without dead ends: 1702 [2018-11-06 20:09:10,782 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 20:09:10,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2018-11-06 20:09:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2018-11-06 20:09:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1702 states. [2018-11-06 20:09:10,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 3071 transitions. [2018-11-06 20:09:10,913 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 3071 transitions. Word has length 817 [2018-11-06 20:09:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:09:10,919 INFO L480 AbstractCegarLoop]: Abstraction has 1702 states and 3071 transitions. [2018-11-06 20:09:10,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:09:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 3071 transitions. [2018-11-06 20:09:10,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2018-11-06 20:09:10,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:10,950 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-06 20:09:10,951 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:10,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:10,952 INFO L82 PathProgramCache]: Analyzing trace with hash 800637938, now seen corresponding path program 1 times [2018-11-06 20:09:10,952 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:10,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:10,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:10,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:10,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:11,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:09:11,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:09:11,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:09:11,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:09:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:09:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:09:11,338 INFO L87 Difference]: Start difference. First operand 1702 states and 3071 transitions. Second operand 3 states. [2018-11-06 20:09:18,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:18,149 INFO L93 Difference]: Finished difference Result 5040 states and 9148 transitions. [2018-11-06 20:09:18,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:09:18,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 823 [2018-11-06 20:09:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:18,169 INFO L225 Difference]: With dead ends: 5040 [2018-11-06 20:09:18,169 INFO L226 Difference]: Without dead ends: 3340 [2018-11-06 20:09:18,173 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 20:09:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3340 states. [2018-11-06 20:09:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3340 to 3340. [2018-11-06 20:09:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2018-11-06 20:09:18,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 5323 transitions. [2018-11-06 20:09:18,254 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 5323 transitions. Word has length 823 [2018-11-06 20:09:18,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:09:18,255 INFO L480 AbstractCegarLoop]: Abstraction has 3340 states and 5323 transitions. [2018-11-06 20:09:18,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:09:18,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 5323 transitions. [2018-11-06 20:09:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2018-11-06 20:09:18,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:18,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:18,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:18,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:18,269 INFO L82 PathProgramCache]: Analyzing trace with hash -610180992, now seen corresponding path program 1 times [2018-11-06 20:09:18,269 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:18,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:18,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:18,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:18,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-06 20:09:20,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:09:20,063 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 20:09:20,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:20,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:09:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-06 20:09:21,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:09:21,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 20:09:21,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:09:21,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:09:21,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:09:21,151 INFO L87 Difference]: Start difference. First operand 3340 states and 5323 transitions. Second operand 5 states. [2018-11-06 20:09:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:33,782 INFO L93 Difference]: Finished difference Result 23058 states and 36944 transitions. [2018-11-06 20:09:33,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-06 20:09:33,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 840 [2018-11-06 20:09:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:33,867 INFO L225 Difference]: With dead ends: 23058 [2018-11-06 20:09:33,867 INFO L226 Difference]: Without dead ends: 19720 [2018-11-06 20:09:33,875 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 839 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-06 20:09:33,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19720 states. [2018-11-06 20:09:34,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19720 to 19720. [2018-11-06 20:09:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19720 states. [2018-11-06 20:09:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19720 states to 19720 states and 27087 transitions. [2018-11-06 20:09:34,266 INFO L78 Accepts]: Start accepts. Automaton has 19720 states and 27087 transitions. Word has length 840 [2018-11-06 20:09:34,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:09:34,267 INFO L480 AbstractCegarLoop]: Abstraction has 19720 states and 27087 transitions. [2018-11-06 20:09:34,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:09:34,268 INFO L276 IsEmpty]: Start isEmpty. Operand 19720 states and 27087 transitions. [2018-11-06 20:09:34,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 942 [2018-11-06 20:09:34,314 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:34,315 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:34,315 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:34,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:34,316 INFO L82 PathProgramCache]: Analyzing trace with hash -176079304, now seen corresponding path program 1 times [2018-11-06 20:09:34,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:34,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:34,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:34,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:34,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-11-06 20:09:35,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:09:35,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 20:09:35,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:09:35,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:09:35,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:09:35,361 INFO L87 Difference]: Start difference. First operand 19720 states and 27087 transitions. Second operand 4 states. [2018-11-06 20:09:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:42,058 INFO L93 Difference]: Finished difference Result 49266 states and 67216 transitions. [2018-11-06 20:09:42,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:09:42,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 941 [2018-11-06 20:09:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:42,130 INFO L225 Difference]: With dead ends: 49266 [2018-11-06 20:09:42,130 INFO L226 Difference]: Without dead ends: 29548 [2018-11-06 20:09:42,153 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 20:09:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29548 states. [2018-11-06 20:09:42,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29548 to 29548. [2018-11-06 20:09:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29548 states. [2018-11-06 20:09:42,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29548 states to 29548 states and 36819 transitions. [2018-11-06 20:09:42,616 INFO L78 Accepts]: Start accepts. Automaton has 29548 states and 36819 transitions. Word has length 941 [2018-11-06 20:09:42,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:09:42,617 INFO L480 AbstractCegarLoop]: Abstraction has 29548 states and 36819 transitions. [2018-11-06 20:09:42,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:09:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand 29548 states and 36819 transitions. [2018-11-06 20:09:42,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1040 [2018-11-06 20:09:42,673 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:42,674 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:42,674 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:42,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:42,675 INFO L82 PathProgramCache]: Analyzing trace with hash -358176423, now seen corresponding path program 1 times [2018-11-06 20:09:42,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:42,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:42,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:42,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:42,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:43,139 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-06 20:09:43,433 WARN L179 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-06 20:09:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2018-11-06 20:09:44,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:09:44,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:09:44,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:09:44,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:09:44,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:09:44,417 INFO L87 Difference]: Start difference. First operand 29548 states and 36819 transitions. Second operand 5 states. [2018-11-06 20:09:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:49,783 INFO L93 Difference]: Finished difference Result 60035 states and 74623 transitions. [2018-11-06 20:09:49,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 20:09:49,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1039 [2018-11-06 20:09:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:49,848 INFO L225 Difference]: With dead ends: 60035 [2018-11-06 20:09:49,848 INFO L226 Difference]: Without dead ends: 30489 [2018-11-06 20:09:49,877 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 20:09:49,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30489 states. [2018-11-06 20:09:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30489 to 30367. [2018-11-06 20:09:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30367 states. [2018-11-06 20:09:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30367 states to 30367 states and 37644 transitions. [2018-11-06 20:09:50,288 INFO L78 Accepts]: Start accepts. Automaton has 30367 states and 37644 transitions. Word has length 1039 [2018-11-06 20:09:50,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:09:50,288 INFO L480 AbstractCegarLoop]: Abstraction has 30367 states and 37644 transitions. [2018-11-06 20:09:50,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:09:50,288 INFO L276 IsEmpty]: Start isEmpty. Operand 30367 states and 37644 transitions. [2018-11-06 20:09:50,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1056 [2018-11-06 20:09:50,342 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:09:50,343 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 20:09:50,344 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:09:50,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:09:50,344 INFO L82 PathProgramCache]: Analyzing trace with hash -148548297, now seen corresponding path program 1 times [2018-11-06 20:09:50,345 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:09:50,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:09:50,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:50,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:09:50,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:09:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:09:51,434 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2018-11-06 20:09:51,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:09:51,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:09:51,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:09:51,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:09:51,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:09:51,436 INFO L87 Difference]: Start difference. First operand 30367 states and 37644 transitions. Second operand 4 states. [2018-11-06 20:09:59,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:09:59,005 INFO L93 Difference]: Finished difference Result 109872 states and 136733 transitions. [2018-11-06 20:09:59,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:09:59,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1055 [2018-11-06 20:09:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:09:59,099 INFO L225 Difference]: With dead ends: 109872 [2018-11-06 20:09:59,099 INFO L226 Difference]: Without dead ends: 80326 [2018-11-06 20:09:59,141 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:09:59,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80326 states. [2018-11-06 20:09:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80326 to 80326. [2018-11-06 20:09:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80326 states. [2018-11-06 20:10:00,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80326 states to 80326 states and 97123 transitions. [2018-11-06 20:10:00,116 INFO L78 Accepts]: Start accepts. Automaton has 80326 states and 97123 transitions. Word has length 1055 [2018-11-06 20:10:00,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:10:00,116 INFO L480 AbstractCegarLoop]: Abstraction has 80326 states and 97123 transitions. [2018-11-06 20:10:00,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:10:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 80326 states and 97123 transitions. [2018-11-06 20:10:00,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2018-11-06 20:10:00,507 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:10:00,508 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:00,508 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:10:00,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:10:00,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1778712396, now seen corresponding path program 1 times [2018-11-06 20:10:00,511 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:10:00,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:10:00,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:00,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:00,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:01,659 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-11-06 20:10:01,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:10:01,659 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 20:10:01,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:02,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:10:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-11-06 20:10:02,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:10:02,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 20:10:02,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:10:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:10:02,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:10:02,820 INFO L87 Difference]: Start difference. First operand 80326 states and 97123 transitions. Second operand 5 states. [2018-11-06 20:10:11,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:10:11,278 INFO L93 Difference]: Finished difference Result 246645 states and 295465 transitions. [2018-11-06 20:10:11,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:10:11,279 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1063 [2018-11-06 20:10:11,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:10:11,475 INFO L225 Difference]: With dead ends: 246645 [2018-11-06 20:10:11,475 INFO L226 Difference]: Without dead ends: 167140 [2018-11-06 20:10:11,555 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1067 GetRequests, 1062 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:10:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167140 states. [2018-11-06 20:10:13,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167140 to 163864. [2018-11-06 20:10:13,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163864 states. [2018-11-06 20:10:13,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163864 states to 163864 states and 186719 transitions. [2018-11-06 20:10:13,510 INFO L78 Accepts]: Start accepts. Automaton has 163864 states and 186719 transitions. Word has length 1063 [2018-11-06 20:10:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:10:13,510 INFO L480 AbstractCegarLoop]: Abstraction has 163864 states and 186719 transitions. [2018-11-06 20:10:13,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:10:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 163864 states and 186719 transitions. [2018-11-06 20:10:13,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1310 [2018-11-06 20:10:13,613 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:10:13,614 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:13,615 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:10:13,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:10:13,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1487099716, now seen corresponding path program 1 times [2018-11-06 20:10:13,616 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:10:13,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:10:13,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:13,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:13,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:14,551 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-06 20:10:14,835 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-06 20:10:15,173 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-06 20:10:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 546 proven. 4 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2018-11-06 20:10:18,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:10:18,113 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:10:18,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:18,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:18,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:10:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 684 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-11-06 20:10:19,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:10:19,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-11-06 20:10:19,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 20:10:19,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 20:10:19,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-06 20:10:19,488 INFO L87 Difference]: Start difference. First operand 163864 states and 186719 transitions. Second operand 8 states. [2018-11-06 20:10:37,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:10:37,221 INFO L93 Difference]: Finished difference Result 348963 states and 397686 transitions. [2018-11-06 20:10:37,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 20:10:37,222 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1309 [2018-11-06 20:10:37,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:10:37,414 INFO L225 Difference]: With dead ends: 348963 [2018-11-06 20:10:37,414 INFO L226 Difference]: Without dead ends: 185920 [2018-11-06 20:10:37,483 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1329 GetRequests, 1314 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-06 20:10:37,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185920 states. [2018-11-06 20:10:38,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185920 to 152396. [2018-11-06 20:10:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152396 states. [2018-11-06 20:10:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152396 states to 152396 states and 167499 transitions. [2018-11-06 20:10:38,973 INFO L78 Accepts]: Start accepts. Automaton has 152396 states and 167499 transitions. Word has length 1309 [2018-11-06 20:10:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:10:38,974 INFO L480 AbstractCegarLoop]: Abstraction has 152396 states and 167499 transitions. [2018-11-06 20:10:38,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 20:10:38,974 INFO L276 IsEmpty]: Start isEmpty. Operand 152396 states and 167499 transitions. [2018-11-06 20:10:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2018-11-06 20:10:39,045 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:10:39,046 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:10:39,047 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:10:39,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:10:39,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1381918587, now seen corresponding path program 1 times [2018-11-06 20:10:39,047 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:10:39,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:10:39,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:39,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:39,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:10:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:42,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 751 proven. 263 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-11-06 20:10:42,706 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:10:42,706 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:10:42,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:10:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:10:43,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:10:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 936 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-11-06 20:10:44,612 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:10:44,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-11-06 20:10:44,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 20:10:44,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 20:10:44,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-06 20:10:44,615 INFO L87 Difference]: Start difference. First operand 152396 states and 167499 transitions. Second operand 8 states. [2018-11-06 20:11:03,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:11:03,505 INFO L93 Difference]: Finished difference Result 305824 states and 336140 transitions. [2018-11-06 20:11:03,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 20:11:03,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1364 [2018-11-06 20:11:03,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:11:03,659 INFO L225 Difference]: With dead ends: 305824 [2018-11-06 20:11:03,659 INFO L226 Difference]: Without dead ends: 151789 [2018-11-06 20:11:03,736 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1385 GetRequests, 1371 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2018-11-06 20:11:03,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151789 states. [2018-11-06 20:11:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151789 to 148298. [2018-11-06 20:11:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148298 states. [2018-11-06 20:11:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148298 states to 148298 states and 160525 transitions. [2018-11-06 20:11:05,352 INFO L78 Accepts]: Start accepts. Automaton has 148298 states and 160525 transitions. Word has length 1364 [2018-11-06 20:11:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:11:05,353 INFO L480 AbstractCegarLoop]: Abstraction has 148298 states and 160525 transitions. [2018-11-06 20:11:05,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 20:11:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 148298 states and 160525 transitions. [2018-11-06 20:11:05,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1510 [2018-11-06 20:11:05,416 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:11:05,417 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 20:11:05,417 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:11:05,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:11:05,418 INFO L82 PathProgramCache]: Analyzing trace with hash -580728736, now seen corresponding path program 1 times [2018-11-06 20:11:05,418 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:11:05,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:11:05,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:05,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:05,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:06,230 WARN L179 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-11-06 20:11:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1341 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2018-11-06 20:11:07,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:11:07,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:11:07,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:11:07,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:11:07,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:11:07,587 INFO L87 Difference]: Start difference. First operand 148298 states and 160525 transitions. Second operand 4 states. [2018-11-06 20:11:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:11:12,522 INFO L93 Difference]: Finished difference Result 295775 states and 320223 transitions. [2018-11-06 20:11:12,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:11:12,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1509 [2018-11-06 20:11:12,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:11:12,650 INFO L225 Difference]: With dead ends: 295775 [2018-11-06 20:11:12,650 INFO L226 Difference]: Without dead ends: 118778 [2018-11-06 20:11:12,731 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:11:12,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118778 states. [2018-11-06 20:11:13,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118778 to 117140. [2018-11-06 20:11:13,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117140 states. [2018-11-06 20:11:13,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117140 states to 117140 states and 119906 transitions. [2018-11-06 20:11:13,746 INFO L78 Accepts]: Start accepts. Automaton has 117140 states and 119906 transitions. Word has length 1509 [2018-11-06 20:11:13,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:11:13,747 INFO L480 AbstractCegarLoop]: Abstraction has 117140 states and 119906 transitions. [2018-11-06 20:11:13,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:11:13,747 INFO L276 IsEmpty]: Start isEmpty. Operand 117140 states and 119906 transitions. [2018-11-06 20:11:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1602 [2018-11-06 20:11:13,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:11:13,804 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 20:11:13,805 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:11:13,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:11:13,805 INFO L82 PathProgramCache]: Analyzing trace with hash 742917899, now seen corresponding path program 1 times [2018-11-06 20:11:13,805 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:11:13,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:11:13,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:13,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:13,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:15,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2287 backedges. 1616 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2018-11-06 20:11:15,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:11:15,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:11:15,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:11:15,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:11:15,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:11:15,818 INFO L87 Difference]: Start difference. First operand 117140 states and 119906 transitions. Second operand 4 states. [2018-11-06 20:11:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:11:19,433 INFO L93 Difference]: Finished difference Result 238372 states and 243982 transitions. [2018-11-06 20:11:19,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:11:19,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1601 [2018-11-06 20:11:19,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:11:19,534 INFO L225 Difference]: With dead ends: 238372 [2018-11-06 20:11:19,534 INFO L226 Difference]: Without dead ends: 122053 [2018-11-06 20:11:19,584 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:11:19,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122053 states. [2018-11-06 20:11:20,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122053 to 118777. [2018-11-06 20:11:20,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118777 states. [2018-11-06 20:11:21,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118777 states to 118777 states and 121267 transitions. [2018-11-06 20:11:21,018 INFO L78 Accepts]: Start accepts. Automaton has 118777 states and 121267 transitions. Word has length 1601 [2018-11-06 20:11:21,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:11:21,019 INFO L480 AbstractCegarLoop]: Abstraction has 118777 states and 121267 transitions. [2018-11-06 20:11:21,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:11:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand 118777 states and 121267 transitions. [2018-11-06 20:11:21,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1618 [2018-11-06 20:11:21,067 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:11:21,068 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:11:21,069 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:11:21,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:11:21,069 INFO L82 PathProgramCache]: Analyzing trace with hash 676208238, now seen corresponding path program 1 times [2018-11-06 20:11:21,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:11:21,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:11:21,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:21,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:21,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:21,897 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-06 20:11:22,155 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-06 20:11:22,507 WARN L179 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2018-11-06 20:11:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 1135 proven. 114 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2018-11-06 20:11:27,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:11:27,984 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:11:27,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:28,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:11:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1786 backedges. 1299 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2018-11-06 20:11:29,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:11:29,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-11-06 20:11:29,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 20:11:29,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 20:11:29,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-06 20:11:29,503 INFO L87 Difference]: Start difference. First operand 118777 states and 121267 transitions. Second operand 9 states. [2018-11-06 20:11:42,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:11:42,573 INFO L93 Difference]: Finished difference Result 254045 states and 259368 transitions. [2018-11-06 20:11:42,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-06 20:11:42,573 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1617 [2018-11-06 20:11:42,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:11:42,686 INFO L225 Difference]: With dead ends: 254045 [2018-11-06 20:11:42,686 INFO L226 Difference]: Without dead ends: 136089 [2018-11-06 20:11:42,739 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1652 GetRequests, 1629 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2018-11-06 20:11:42,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136089 states. [2018-11-06 20:11:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136089 to 111406. [2018-11-06 20:11:43,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111406 states. [2018-11-06 20:11:43,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111406 states to 111406 states and 113207 transitions. [2018-11-06 20:11:43,707 INFO L78 Accepts]: Start accepts. Automaton has 111406 states and 113207 transitions. Word has length 1617 [2018-11-06 20:11:43,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:11:43,708 INFO L480 AbstractCegarLoop]: Abstraction has 111406 states and 113207 transitions. [2018-11-06 20:11:43,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 20:11:43,708 INFO L276 IsEmpty]: Start isEmpty. Operand 111406 states and 113207 transitions. [2018-11-06 20:11:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1965 [2018-11-06 20:11:43,763 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:11:43,764 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 20:11:43,765 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:11:43,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:11:43,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1511655121, now seen corresponding path program 1 times [2018-11-06 20:11:43,766 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:11:43,766 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:11:43,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:43,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:43,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 1501 proven. 8 refuted. 0 times theorem prover too weak. 991 trivial. 0 not checked. [2018-11-06 20:11:46,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:11:46,082 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:11:46,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:11:46,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:11:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 1501 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2018-11-06 20:11:47,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:11:47,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-11-06 20:11:47,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:11:47,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:11:47,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:11:47,983 INFO L87 Difference]: Start difference. First operand 111406 states and 113207 transitions. Second operand 5 states. [2018-11-06 20:11:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:11:52,813 INFO L93 Difference]: Finished difference Result 221991 states and 225589 transitions. [2018-11-06 20:11:52,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:11:52,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1964 [2018-11-06 20:11:52,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:11:52,922 INFO L225 Difference]: With dead ends: 221991 [2018-11-06 20:11:52,922 INFO L226 Difference]: Without dead ends: 111406 [2018-11-06 20:11:52,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1969 GetRequests, 1964 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:11:53,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111406 states. [2018-11-06 20:11:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111406 to 107311. [2018-11-06 20:11:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107311 states. [2018-11-06 20:11:53,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107311 states to 107311 states and 108631 transitions. [2018-11-06 20:11:53,908 INFO L78 Accepts]: Start accepts. Automaton has 107311 states and 108631 transitions. Word has length 1964 [2018-11-06 20:11:53,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:11:53,909 INFO L480 AbstractCegarLoop]: Abstraction has 107311 states and 108631 transitions. [2018-11-06 20:11:53,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:11:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 107311 states and 108631 transitions. [2018-11-06 20:11:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2113 [2018-11-06 20:11:53,975 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:11:53,976 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-06 20:11:53,976 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:11:53,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:11:53,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1145080002, now seen corresponding path program 1 times [2018-11-06 20:11:53,977 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:11:53,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:11:53,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:53,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:11:53,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:11:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:12:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2632 backedges. 1459 proven. 608 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2018-11-06 20:12:00,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:12:00,542 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:12:00,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:12:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:12:01,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:12:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2632 backedges. 1414 proven. 0 refuted. 0 times theorem prover too weak. 1218 trivial. 0 not checked. [2018-11-06 20:12:03,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:12:03,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-11-06 20:12:03,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-06 20:12:03,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-06 20:12:03,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-06 20:12:03,251 INFO L87 Difference]: Start difference. First operand 107311 states and 108631 transitions. Second operand 10 states. [2018-11-06 20:12:21,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:12:21,573 INFO L93 Difference]: Finished difference Result 272200 states and 275575 transitions. [2018-11-06 20:12:21,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-06 20:12:21,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 2112 [2018-11-06 20:12:21,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:12:21,719 INFO L225 Difference]: With dead ends: 272200 [2018-11-06 20:12:21,719 INFO L226 Difference]: Without dead ends: 165710 [2018-11-06 20:12:21,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2154 GetRequests, 2127 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=233, Invalid=579, Unknown=0, NotChecked=0, Total=812 [2018-11-06 20:12:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165710 states. [2018-11-06 20:12:22,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165710 to 96660. [2018-11-06 20:12:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96660 states. [2018-11-06 20:12:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96660 states to 96660 states and 97525 transitions. [2018-11-06 20:12:22,831 INFO L78 Accepts]: Start accepts. Automaton has 96660 states and 97525 transitions. Word has length 2112 [2018-11-06 20:12:22,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:12:22,832 INFO L480 AbstractCegarLoop]: Abstraction has 96660 states and 97525 transitions. [2018-11-06 20:12:22,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-06 20:12:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 96660 states and 97525 transitions. [2018-11-06 20:12:23,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5880 [2018-11-06 20:12:23,304 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:12:23,306 INFO L375 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 20:12:23,306 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:12:23,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:12:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash 290491341, now seen corresponding path program 1 times [2018-11-06 20:12:23,308 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:12:23,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:12:23,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:12:23,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:12:23,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:12:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:12:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 29044 backedges. 4916 proven. 0 refuted. 0 times theorem prover too weak. 24128 trivial. 0 not checked. [2018-11-06 20:12:35,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:12:35,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:12:35,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:12:35,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:12:35,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:12:35,765 INFO L87 Difference]: Start difference. First operand 96660 states and 97525 transitions. Second operand 4 states. Received shutdown request... [2018-11-06 20:12:37,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:12:37,516 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 20:12:37,522 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 20:12:37,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 08:12:37 BoogieIcfgContainer [2018-11-06 20:12:37,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 20:12:37,524 INFO L168 Benchmark]: Toolchain (without parser) took 227314.24 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,525 INFO L168 Benchmark]: CDTParser took 0.22 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 20:12:37,526 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2307.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,526 INFO L168 Benchmark]: Boogie Procedure Inliner took 538.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 811.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,527 INFO L168 Benchmark]: Boogie Preprocessor took 213.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,528 INFO L168 Benchmark]: RCFGBuilder took 8738.69 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 197.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -113.4 MB). Peak memory consumption was 659.7 MB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,529 INFO L168 Benchmark]: TraceAbstraction took 215510.45 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: -644.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-06 20:12:37,534 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2307.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 538.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 811.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 213.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8738.69 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 197.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -113.4 MB). Peak memory consumption was 659.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215510.45 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: -644.0 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4805]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4805). Cancelled while BasicCegarLoop was constructing difference of abstraction (96660states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (1917 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 886 locations, 1 error locations. TIMEOUT Result, 215.4s OverallTime, 15 OverallIterations, 18 TraceHistogramMax, 139.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9185 SDtfs, 39493 SDslu, 2184 SDs, 0 SdLazy, 98345 SolverSat, 18572 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10431 GetRequests, 10318 SyntacticMatches, 10 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163864occurred in iteration=7, 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: 12.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 143155 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.3s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 22.1s InterpolantComputationTime, 34202 NumberOfCodeBlocks, 34202 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 34180 ConstructedInterpolants, 0 QuantifiedInterpolants, 141696803 SizeOfPredicates, 4 NumberOfNonLiveVariables, 12091 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 51820/52825 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown