java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 15:04:05,094 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 15:04:05,097 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 15:04:05,117 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 15:04:05,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 15:04:05,118 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 15:04:05,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 15:04:05,122 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 15:04:05,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 15:04:05,125 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 15:04:05,126 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 15:04:05,126 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 15:04:05,127 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 15:04:05,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 15:04:05,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 15:04:05,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 15:04:05,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 15:04:05,141 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 15:04:05,146 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 15:04:05,148 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 15:04:05,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 15:04:05,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 15:04:05,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 15:04:05,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 15:04:05,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 15:04:05,154 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 15:04:05,155 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 15:04:05,156 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 15:04:05,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 15:04:05,157 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 15:04:05,158 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 15:04:05,158 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 15:04:05,158 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 15:04:05,159 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 15:04:05,159 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 15:04:05,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 15:04:05,160 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 15:04:05,183 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 15:04:05,183 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 15:04:05,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 15:04:05,187 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 15:04:05,188 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 15:04:05,188 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 15:04:05,188 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 15:04:05,189 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 15:04:05,190 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 15:04:05,190 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 15:04:05,190 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 15:04:05,190 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 15:04:05,190 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 15:04:05,191 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 15:04:05,191 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 15:04:05,191 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 15:04:05,191 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 15:04:05,191 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 15:04:05,192 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 15:04:05,193 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 15:04:05,193 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 15:04:05,193 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 15:04:05,193 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 15:04:05,193 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 15:04:05,194 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 15:04:05,194 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 15:04:05,194 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 15:04:05,194 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 15:04:05,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 15:04:05,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 15:04:05,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 15:04:05,272 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 15:04:05,272 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 15:04:05,273 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-10-24 15:04:05,335 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3793c81b4/36fa723ceb8c439583089998427dfc5a/FLAG0d4cb162d [2018-10-24 15:04:06,070 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 15:04:06,071 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-10-24 15:04:06,107 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3793c81b4/36fa723ceb8c439583089998427dfc5a/FLAG0d4cb162d [2018-10-24 15:04:06,123 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3793c81b4/36fa723ceb8c439583089998427dfc5a [2018-10-24 15:04:06,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 15:04:06,136 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 15:04:06,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 15:04:06,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 15:04:06,144 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 15:04:06,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:06" (1/1) ... [2018-10-24 15:04:06,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c237445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:06, skipping insertion in model container [2018-10-24 15:04:06,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:04:06" (1/1) ... [2018-10-24 15:04:06,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 15:04:06,333 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 15:04:07,753 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:04:07,758 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 15:04:08,555 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 15:04:08,591 INFO L193 MainTranslator]: Completed translation [2018-10-24 15:04:08,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08 WrapperNode [2018-10-24 15:04:08,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 15:04:08,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 15:04:08,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 15:04:08,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 15:04:08,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:08,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 15:04:09,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 15:04:09,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 15:04:09,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 15:04:09,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... [2018-10-24 15:04:09,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 15:04:09,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 15:04:09,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 15:04:09,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 15:04:09,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:04:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 15:04:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 15:04:09,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 15:04:18,220 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 15:04:18,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:18 BoogieIcfgContainer [2018-10-24 15:04:18,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 15:04:18,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 15:04:18,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 15:04:18,225 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 15:04:18,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:04:06" (1/3) ... [2018-10-24 15:04:18,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3924a31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:18, skipping insertion in model container [2018-10-24 15:04:18,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:04:08" (2/3) ... [2018-10-24 15:04:18,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3924a31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:04:18, skipping insertion in model container [2018-10-24 15:04:18,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:04:18" (3/3) ... [2018-10-24 15:04:18,229 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label10_true-unreach-call.c [2018-10-24 15:04:18,239 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 15:04:18,248 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 15:04:18,266 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 15:04:18,312 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 15:04:18,313 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 15:04:18,313 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 15:04:18,313 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 15:04:18,314 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 15:04:18,314 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 15:04:18,314 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 15:04:18,314 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 15:04:18,314 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 15:04:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-10-24 15:04:18,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2018-10-24 15:04:18,396 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:04:18,398 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] [2018-10-24 15:04:18,400 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:04:18,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:04:18,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1678519723, now seen corresponding path program 1 times [2018-10-24 15:04:18,409 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:04:18,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:04:18,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:18,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:04:18,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:04:20,507 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 15:04:20,962 WARN L179 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-24 15:04:21,831 WARN L179 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-10-24 15:04:22,096 WARN L179 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 15:04:25,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:04:25,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:04:25,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 15:04:25,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 15:04:25,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 15:04:25,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 15:04:25,432 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 6 states. [2018-10-24 15:04:43,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:04:43,206 INFO L93 Difference]: Finished difference Result 4242 states and 8309 transitions. [2018-10-24 15:04:43,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 15:04:43,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 811 [2018-10-24 15:04:43,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:04:43,266 INFO L225 Difference]: With dead ends: 4242 [2018-10-24 15:04:43,266 INFO L226 Difference]: Without dead ends: 3343 [2018-10-24 15:04:43,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 8 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 15:04:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2018-10-24 15:04:43,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3340. [2018-10-24 15:04:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2018-10-24 15:04:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4190 transitions. [2018-10-24 15:04:43,457 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4190 transitions. Word has length 811 [2018-10-24 15:04:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:04:43,463 INFO L481 AbstractCegarLoop]: Abstraction has 3340 states and 4190 transitions. [2018-10-24 15:04:43,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 15:04:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4190 transitions. [2018-10-24 15:04:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2018-10-24 15:04:43,500 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:04:43,501 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:04:43,502 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:04:43,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:04:43,502 INFO L82 PathProgramCache]: Analyzing trace with hash -646716109, now seen corresponding path program 1 times [2018-10-24 15:04:43,502 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:04:43,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:04:43,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:43,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:04:43,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:04:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 15:04:45,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:04:45,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 15:04:45,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:04:45,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:04:45,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:04:45,525 INFO L87 Difference]: Start difference. First operand 3340 states and 4190 transitions. Second operand 4 states. [2018-10-24 15:04:53,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:04:53,809 INFO L93 Difference]: Finished difference Result 7497 states and 10813 transitions. [2018-10-24 15:04:53,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:04:53,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 827 [2018-10-24 15:04:53,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:04:53,835 INFO L225 Difference]: With dead ends: 7497 [2018-10-24 15:04:53,835 INFO L226 Difference]: Without dead ends: 4978 [2018-10-24 15:04:53,840 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:04:53,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2018-10-24 15:04:53,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4978. [2018-10-24 15:04:53,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2018-10-24 15:04:53,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 7059 transitions. [2018-10-24 15:04:53,928 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 7059 transitions. Word has length 827 [2018-10-24 15:04:53,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:04:53,930 INFO L481 AbstractCegarLoop]: Abstraction has 4978 states and 7059 transitions. [2018-10-24 15:04:53,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:04:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 7059 transitions. [2018-10-24 15:04:53,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2018-10-24 15:04:53,945 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:04:53,946 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:04:53,946 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:04:53,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:04:53,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1657884920, now seen corresponding path program 1 times [2018-10-24 15:04:53,947 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:04:53,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:04:53,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:53,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:04:53,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:04:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 15:04:54,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:04:54,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:04:54,475 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:04:54,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:04:54,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:04:54,477 INFO L87 Difference]: Start difference. First operand 4978 states and 7059 transitions. Second operand 3 states. [2018-10-24 15:04:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:04:58,859 INFO L93 Difference]: Finished difference Result 11592 states and 17803 transitions. [2018-10-24 15:04:58,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:04:58,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 833 [2018-10-24 15:04:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:04:58,894 INFO L225 Difference]: With dead ends: 11592 [2018-10-24 15:04:58,894 INFO L226 Difference]: Without dead ends: 7435 [2018-10-24 15:04:58,901 INFO L605 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 [2018-10-24 15:04:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7435 states. [2018-10-24 15:04:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7435 to 7435. [2018-10-24 15:04:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7435 states. [2018-10-24 15:04:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 10407 transitions. [2018-10-24 15:04:59,058 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 10407 transitions. Word has length 833 [2018-10-24 15:04:59,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:04:59,058 INFO L481 AbstractCegarLoop]: Abstraction has 7435 states and 10407 transitions. [2018-10-24 15:04:59,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:04:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 10407 transitions. [2018-10-24 15:04:59,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2018-10-24 15:04:59,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:04:59,082 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:04:59,082 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:04:59,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:04:59,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1068280245, now seen corresponding path program 1 times [2018-10-24 15:04:59,083 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:04:59,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:04:59,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:59,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:04:59,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:04:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:04:59,879 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 15:04:59,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:04:59,880 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:04:59,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:00,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:05:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-10-24 15:05:00,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:05:00,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 15:05:00,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:05:00,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:05:00,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:00,685 INFO L87 Difference]: Start difference. First operand 7435 states and 10407 transitions. Second operand 5 states. [2018-10-24 15:05:09,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:05:09,101 INFO L93 Difference]: Finished difference Result 26334 states and 38193 transitions. [2018-10-24 15:05:09,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:05:09,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 880 [2018-10-24 15:05:09,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:05:09,175 INFO L225 Difference]: With dead ends: 26334 [2018-10-24 15:05:09,176 INFO L226 Difference]: Without dead ends: 18080 [2018-10-24 15:05:09,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 879 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18080 states. [2018-10-24 15:05:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18080 to 18080. [2018-10-24 15:05:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18080 states. [2018-10-24 15:05:09,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18080 states to 18080 states and 23919 transitions. [2018-10-24 15:05:09,540 INFO L78 Accepts]: Start accepts. Automaton has 18080 states and 23919 transitions. Word has length 880 [2018-10-24 15:05:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:05:09,540 INFO L481 AbstractCegarLoop]: Abstraction has 18080 states and 23919 transitions. [2018-10-24 15:05:09,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 15:05:09,540 INFO L276 IsEmpty]: Start isEmpty. Operand 18080 states and 23919 transitions. [2018-10-24 15:05:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2018-10-24 15:05:09,583 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:05:09,584 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:05:09,584 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:05:09,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:05:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1061811191, now seen corresponding path program 1 times [2018-10-24 15:05:09,585 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:05:09,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:05:09,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:09,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:09,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 129 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2018-10-24 15:05:10,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:05:10,354 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:05:10,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:10,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:05:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2018-10-24 15:05:11,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:05:11,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 15:05:11,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:05:11,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:05:11,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:11,318 INFO L87 Difference]: Start difference. First operand 18080 states and 23919 transitions. Second operand 5 states. [2018-10-24 15:05:18,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:05:18,459 INFO L93 Difference]: Finished difference Result 64004 states and 87160 transitions. [2018-10-24 15:05:18,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:05:18,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 965 [2018-10-24 15:05:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:05:18,571 INFO L225 Difference]: With dead ends: 64004 [2018-10-24 15:05:18,571 INFO L226 Difference]: Without dead ends: 46745 [2018-10-24 15:05:18,598 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 964 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46745 states. [2018-10-24 15:05:19,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46745 to 46745. [2018-10-24 15:05:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46745 states. [2018-10-24 15:05:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46745 states to 46745 states and 58638 transitions. [2018-10-24 15:05:19,260 INFO L78 Accepts]: Start accepts. Automaton has 46745 states and 58638 transitions. Word has length 965 [2018-10-24 15:05:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:05:19,261 INFO L481 AbstractCegarLoop]: Abstraction has 46745 states and 58638 transitions. [2018-10-24 15:05:19,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 15:05:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 46745 states and 58638 transitions. [2018-10-24 15:05:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-10-24 15:05:19,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:05:19,342 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, 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] [2018-10-24 15:05:19,343 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:05:19,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:05:19,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1384807802, now seen corresponding path program 1 times [2018-10-24 15:05:19,343 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:05:19,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:05:19,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:19,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:19,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 15:05:20,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:05:20,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 15:05:20,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 15:05:20,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 15:05:20,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 15:05:20,398 INFO L87 Difference]: Start difference. First operand 46745 states and 58638 transitions. Second operand 3 states. [2018-10-24 15:05:25,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:05:25,485 INFO L93 Difference]: Finished difference Result 127886 states and 161344 transitions. [2018-10-24 15:05:25,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:05:25,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1036 [2018-10-24 15:05:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:05:25,642 INFO L225 Difference]: With dead ends: 127886 [2018-10-24 15:05:25,643 INFO L226 Difference]: Without dead ends: 81962 [2018-10-24 15:05:25,695 INFO L605 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 [2018-10-24 15:05:25,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81962 states. [2018-10-24 15:05:26,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81962 to 81962. [2018-10-24 15:05:26,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81962 states. [2018-10-24 15:05:26,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81962 states to 81962 states and 100693 transitions. [2018-10-24 15:05:26,548 INFO L78 Accepts]: Start accepts. Automaton has 81962 states and 100693 transitions. Word has length 1036 [2018-10-24 15:05:26,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:05:26,548 INFO L481 AbstractCegarLoop]: Abstraction has 81962 states and 100693 transitions. [2018-10-24 15:05:26,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 15:05:26,549 INFO L276 IsEmpty]: Start isEmpty. Operand 81962 states and 100693 transitions. [2018-10-24 15:05:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2018-10-24 15:05:26,619 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:05:26,620 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] [2018-10-24 15:05:26,620 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:05:26,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:05:26,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1057596276, now seen corresponding path program 1 times [2018-10-24 15:05:26,621 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:05:26,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:05:26,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:26,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:26,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-10-24 15:05:27,823 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:05:27,823 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:05:27,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:28,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:05:29,095 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-10-24 15:05:29,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:05:29,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 15:05:29,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 15:05:29,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 15:05:29,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:29,131 INFO L87 Difference]: Start difference. First operand 81962 states and 100693 transitions. Second operand 5 states. [2018-10-24 15:05:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:05:37,073 INFO L93 Difference]: Finished difference Result 246641 states and 300173 transitions. [2018-10-24 15:05:37,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:05:37,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1057 [2018-10-24 15:05:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:05:37,273 INFO L225 Difference]: With dead ends: 246641 [2018-10-24 15:05:37,273 INFO L226 Difference]: Without dead ends: 165500 [2018-10-24 15:05:37,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1056 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 15:05:37,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165500 states. [2018-10-24 15:05:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165500 to 163862. [2018-10-24 15:05:39,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163862 states. [2018-10-24 15:05:39,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163862 states to 163862 states and 188875 transitions. [2018-10-24 15:05:39,250 INFO L78 Accepts]: Start accepts. Automaton has 163862 states and 188875 transitions. Word has length 1057 [2018-10-24 15:05:39,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:05:39,250 INFO L481 AbstractCegarLoop]: Abstraction has 163862 states and 188875 transitions. [2018-10-24 15:05:39,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 15:05:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 163862 states and 188875 transitions. [2018-10-24 15:05:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1261 [2018-10-24 15:05:39,341 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:05:39,342 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:05:39,343 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:05:39,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:05:39,343 INFO L82 PathProgramCache]: Analyzing trace with hash -675512375, now seen corresponding path program 1 times [2018-10-24 15:05:39,344 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:05:39,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:05:39,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:39,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:39,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-10-24 15:05:41,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:05:41,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 15:05:41,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:05:41,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:05:41,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:05:41,987 INFO L87 Difference]: Start difference. First operand 163862 states and 188875 transitions. Second operand 4 states. [2018-10-24 15:05:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:05:48,149 INFO L93 Difference]: Finished difference Result 327722 states and 377796 transitions. [2018-10-24 15:05:48,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 15:05:48,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1260 [2018-10-24 15:05:48,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:05:48,329 INFO L225 Difference]: With dead ends: 327722 [2018-10-24 15:05:48,330 INFO L226 Difference]: Without dead ends: 164681 [2018-10-24 15:05:48,413 INFO L605 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 [2018-10-24 15:05:48,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164681 states. [2018-10-24 15:05:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164681 to 163862. [2018-10-24 15:05:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163862 states. [2018-10-24 15:05:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163862 states to 163862 states and 185914 transitions. [2018-10-24 15:05:51,071 INFO L78 Accepts]: Start accepts. Automaton has 163862 states and 185914 transitions. Word has length 1260 [2018-10-24 15:05:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:05:51,072 INFO L481 AbstractCegarLoop]: Abstraction has 163862 states and 185914 transitions. [2018-10-24 15:05:51,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:05:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 163862 states and 185914 transitions. [2018-10-24 15:05:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2018-10-24 15:05:51,141 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:05:51,142 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:05:51,142 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:05:51,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:05:51,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2143627548, now seen corresponding path program 1 times [2018-10-24 15:05:51,143 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:05:51,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:05:51,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:51,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:05:51,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:05:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:05:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-10-24 15:05:53,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 15:05:53,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 15:05:53,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 15:05:53,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 15:05:53,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:05:53,609 INFO L87 Difference]: Start difference. First operand 163862 states and 185914 transitions. Second operand 4 states. [2018-10-24 15:06:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:06:01,829 INFO L93 Difference]: Finished difference Result 327722 states and 371845 transitions. [2018-10-24 15:06:01,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 15:06:01,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1282 [2018-10-24 15:06:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:06:02,020 INFO L225 Difference]: With dead ends: 327722 [2018-10-24 15:06:02,021 INFO L226 Difference]: Without dead ends: 164681 [2018-10-24 15:06:02,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 15:06:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164681 states. [2018-10-24 15:06:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164681 to 163043. [2018-10-24 15:06:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163043 states. [2018-10-24 15:06:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 178044 transitions. [2018-10-24 15:06:03,413 INFO L78 Accepts]: Start accepts. Automaton has 163043 states and 178044 transitions. Word has length 1282 [2018-10-24 15:06:03,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:06:03,414 INFO L481 AbstractCegarLoop]: Abstraction has 163043 states and 178044 transitions. [2018-10-24 15:06:03,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 15:06:03,414 INFO L276 IsEmpty]: Start isEmpty. Operand 163043 states and 178044 transitions. [2018-10-24 15:06:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2018-10-24 15:06:03,474 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:06:03,475 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:06:03,475 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:06:03,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:06:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash -572975571, now seen corresponding path program 1 times [2018-10-24 15:06:03,475 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:06:03,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:06:03,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:06:03,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:06:03,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:06:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:06:04,238 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 15:06:04,511 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 15:06:04,849 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-10-24 15:06:08,157 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 576 proven. 4 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2018-10-24 15:06:08,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:06:08,157 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:06:08,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:06:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:06:08,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:06:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-24 15:06:09,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:06:09,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 15:06:09,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 15:06:09,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 15:06:09,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-24 15:06:09,411 INFO L87 Difference]: Start difference. First operand 163043 states and 178044 transitions. Second operand 8 states. [2018-10-24 15:06:27,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:06:27,134 INFO L93 Difference]: Finished difference Result 346417 states and 378376 transitions. [2018-10-24 15:06:27,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 15:06:27,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1348 [2018-10-24 15:06:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:06:27,321 INFO L225 Difference]: With dead ends: 346417 [2018-10-24 15:06:27,321 INFO L226 Difference]: Without dead ends: 184195 [2018-10-24 15:06:27,399 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1353 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-10-24 15:06:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184195 states. [2018-10-24 15:06:29,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184195 to 159767. [2018-10-24 15:06:29,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159767 states. [2018-10-24 15:06:29,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159767 states to 159767 states and 170487 transitions. [2018-10-24 15:06:29,397 INFO L78 Accepts]: Start accepts. Automaton has 159767 states and 170487 transitions. Word has length 1348 [2018-10-24 15:06:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:06:29,398 INFO L481 AbstractCegarLoop]: Abstraction has 159767 states and 170487 transitions. [2018-10-24 15:06:29,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 15:06:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 159767 states and 170487 transitions. [2018-10-24 15:06:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1788 [2018-10-24 15:06:29,513 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:06:29,514 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 15:06:29,514 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:06:29,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:06:29,515 INFO L82 PathProgramCache]: Analyzing trace with hash -415847443, now seen corresponding path program 1 times [2018-10-24 15:06:29,515 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:06:29,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:06:29,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:06:29,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:06:29,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:06:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:06:31,287 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 15:06:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 1402 proven. 80 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-10-24 15:06:42,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:06:42,575 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:06:42,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:06:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:06:43,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:06:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 972 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2018-10-24 15:06:44,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:06:44,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-10-24 15:06:44,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 15:06:44,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 15:06:44,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-24 15:06:44,517 INFO L87 Difference]: Start difference. First operand 159767 states and 170487 transitions. Second operand 9 states. [2018-10-24 15:07:04,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:07:04,729 INFO L93 Difference]: Finished difference Result 320850 states and 342479 transitions. [2018-10-24 15:07:04,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 15:07:04,730 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1787 [2018-10-24 15:07:04,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:07:04,874 INFO L225 Difference]: With dead ends: 320850 [2018-10-24 15:07:04,874 INFO L226 Difference]: Without dead ends: 161084 [2018-10-24 15:07:04,911 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1800 GetRequests, 1789 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-24 15:07:05,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161084 states. [2018-10-24 15:07:06,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161084 to 151427. [2018-10-24 15:07:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151427 states. [2018-10-24 15:07:06,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151427 states to 151427 states and 158669 transitions. [2018-10-24 15:07:06,143 INFO L78 Accepts]: Start accepts. Automaton has 151427 states and 158669 transitions. Word has length 1787 [2018-10-24 15:07:06,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:07:06,143 INFO L481 AbstractCegarLoop]: Abstraction has 151427 states and 158669 transitions. [2018-10-24 15:07:06,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 15:07:06,144 INFO L276 IsEmpty]: Start isEmpty. Operand 151427 states and 158669 transitions. [2018-10-24 15:07:06,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1853 [2018-10-24 15:07:06,237 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 15:07:06,238 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 15:07:06,238 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 15:07:06,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 15:07:06,238 INFO L82 PathProgramCache]: Analyzing trace with hash -285564318, now seen corresponding path program 1 times [2018-10-24 15:07:06,239 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 15:07:06,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 15:07:06,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:07:06,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:07:06,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 15:07:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:07:07,740 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 15:07:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1471 backedges. 1227 proven. 84 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-10-24 15:07:16,912 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 15:07:16,912 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 15:07:16,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 15:07:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 15:07:17,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 15:07:19,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1471 backedges. 1037 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2018-10-24 15:07:19,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 15:07:19,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2018-10-24 15:07:19,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 15:07:19,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 15:07:19,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=122, Unknown=0, NotChecked=0, Total=210 [2018-10-24 15:07:19,046 INFO L87 Difference]: Start difference. First operand 151427 states and 158669 transitions. Second operand 15 states. [2018-10-24 15:07:40,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 15:07:40,570 INFO L93 Difference]: Finished difference Result 302610 states and 317103 transitions. [2018-10-24 15:07:40,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 15:07:40,571 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1852 [2018-10-24 15:07:40,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 15:07:40,572 INFO L225 Difference]: With dead ends: 302610 [2018-10-24 15:07:40,572 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 15:07:40,650 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1876 GetRequests, 1856 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=204, Invalid=258, Unknown=0, NotChecked=0, Total=462 [2018-10-24 15:07:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 15:07:40,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 15:07:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 15:07:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 15:07:40,651 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1852 [2018-10-24 15:07:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 15:07:40,651 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 15:07:40,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-24 15:07:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 15:07:40,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 15:07:40,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 15:07:40,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,780 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,906 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 111 [2018-10-24 15:07:40,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:40,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,002 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,148 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 111 [2018-10-24 15:07:41,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,602 WARN L179 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 651 DAG size of output: 182 [2018-10-24 15:07:41,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,777 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:41,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,059 WARN L179 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 648 DAG size of output: 182 [2018-10-24 15:07:42,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,192 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,238 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,247 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-24 15:07:42,331 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 143 [2018-10-24 15:07:44,677 WARN L179 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2018-10-24 15:07:46,172 WARN L179 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 102 DAG size of output: 83 Received shutdown request... [2018-10-24 15:07:46,611 WARN L187 SmtUtils]: Removed 48 from assertion stack [2018-10-24 15:07:46,612 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-24 15:07:46,613 INFO L168 Benchmark]: Toolchain (without parser) took 220478.28 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 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-10-24 15:07:46,615 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. [2018-10-24 15:07:46,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2454.99 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. [2018-10-24 15:07:46,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 526.25 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. [2018-10-24 15:07:46,617 INFO L168 Benchmark]: Boogie Preprocessor took 230.90 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: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2018-10-24 15:07:46,618 INFO L168 Benchmark]: RCFGBuilder took 8870.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 182.5 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -84.9 MB). Peak memory consumption was 638.0 MB. Max. memory is 7.1 GB. [2018-10-24 15:07:46,619 INFO L168 Benchmark]: TraceAbstraction took 208390.16 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 3.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 15:07:46,625 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 2454.99 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 526.25 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 58.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 230.90 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: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8870.92 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 182.5 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -84.9 MB). Peak memory consumption was 638.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208390.16 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 3.6 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4787]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 148. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown