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/Problem03_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:58:25,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:58:25,368 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:58:25,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:58:25,383 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:58:25,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:58:25,388 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:58:25,390 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:58:25,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:58:25,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:58:25,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:58:25,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:58:25,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:58:25,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:58:25,405 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:58:25,406 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:58:25,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:58:25,416 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:58:25,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:58:25,422 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:58:25,426 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:58:25,428 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:58:25,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:58:25,434 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:58:25,434 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:58:25,435 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:58:25,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:58:25,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:58:25,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:58:25,444 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:58:25,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:58:25,445 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:58:25,445 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:58:25,445 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:58:25,446 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:58:25,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:58:25,448 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 [2018-10-26 19:58:25,476 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:58:25,476 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:58:25,477 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:58:25,477 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:58:25,478 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:58:25,478 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:58:25,478 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:58:25,480 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:58:25,480 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:58:25,480 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:58:25,480 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:58:25,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:58:25,481 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:58:25,481 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:58:25,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:58:25,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:58:25,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:58:25,483 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:58:25,483 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:58:25,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:58:25,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:58:25,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:58:25,484 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:58:25,484 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:58:25,484 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:58:25,485 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:58:25,485 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:58:25,485 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 19:58:25,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:58:25,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:58:25,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:58:25,576 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:58:25,577 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:58:25,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-26 19:58:25,639 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9fa60405/9eff55295e97475b80233a91be987600/FLAGf77feac22 [2018-10-26 19:58:26,288 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:58:26,291 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-26 19:58:26,311 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9fa60405/9eff55295e97475b80233a91be987600/FLAGf77feac22 [2018-10-26 19:58:26,326 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f9fa60405/9eff55295e97475b80233a91be987600 [2018-10-26 19:58:26,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:58:26,337 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:58:26,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:58:26,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:58:26,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:58:26,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:58:26" (1/1) ... [2018-10-26 19:58:26,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae6b03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:26, skipping insertion in model container [2018-10-26 19:58:26,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:58:26" (1/1) ... [2018-10-26 19:58:26,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:58:26,453 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:58:27,133 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:58:27,139 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:58:27,445 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:58:27,467 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:58:27,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27 WrapperNode [2018-10-26 19:58:27,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:58:27,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:58:27,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:58:27,469 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:58:27,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:58:27,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:58:27,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:58:27,759 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:58:27,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (1/1) ... [2018-10-26 19:58:27,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:58:27,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:58:27,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:58:27,908 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:58:27,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (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 [2018-10-26 19:58:27,978 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 19:58:27,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:58:27,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:58:33,457 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:58:33,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:58:33 BoogieIcfgContainer [2018-10-26 19:58:33,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:58:33,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:58:33,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:58:33,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:58:33,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:58:26" (1/3) ... [2018-10-26 19:58:33,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11254fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:58:33, skipping insertion in model container [2018-10-26 19:58:33,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:58:27" (2/3) ... [2018-10-26 19:58:33,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11254fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:58:33, skipping insertion in model container [2018-10-26 19:58:33,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:58:33" (3/3) ... [2018-10-26 19:58:33,467 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14_true-unreach-call.c [2018-10-26 19:58:33,477 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:58:33,485 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:58:33,505 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:58:33,556 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:58:33,557 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:58:33,557 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:58:33,557 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:58:33,557 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:58:33,558 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:58:33,558 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:58:33,558 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:58:33,558 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:58:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-26 19:58:33,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-26 19:58:33,606 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:33,607 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] [2018-10-26 19:58:33,610 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:33,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:33,615 INFO L82 PathProgramCache]: Analyzing trace with hash -102357910, now seen corresponding path program 1 times [2018-10-26 19:58:33,617 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:33,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:33,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:33,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:33,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:34,507 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 19:58:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:58:34,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:34,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:58:34,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:58:34,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:58:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:34,643 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-26 19:58:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:38,208 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-10-26 19:58:38,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:58:38,210 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-10-26 19:58:38,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:38,238 INFO L225 Difference]: With dead ends: 1072 [2018-10-26 19:58:38,239 INFO L226 Difference]: Without dead ends: 762 [2018-10-26 19:58:38,244 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-26 19:58:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-10-26 19:58:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-10-26 19:58:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-10-26 19:58:38,330 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 171 [2018-10-26 19:58:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:38,331 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-10-26 19:58:38,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:58:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-10-26 19:58:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-26 19:58:38,337 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:38,338 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:58:38,338 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:38,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1343385639, now seen corresponding path program 1 times [2018-10-26 19:58:38,339 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:38,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:38,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:38,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:38,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:58:38,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:38,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:58:38,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:58:38,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:58:38,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:38,647 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-10-26 19:58:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:42,018 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-10-26 19:58:42,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:58:42,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-10-26 19:58:42,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:42,028 INFO L225 Difference]: With dead ends: 1918 [2018-10-26 19:58:42,028 INFO L226 Difference]: Without dead ends: 1402 [2018-10-26 19:58:42,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-10-26 19:58:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-10-26 19:58:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-10-26 19:58:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-10-26 19:58:42,082 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 177 [2018-10-26 19:58:42,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:42,082 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-10-26 19:58:42,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:58:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-10-26 19:58:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-26 19:58:42,088 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:42,088 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:58:42,088 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:42,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:42,089 INFO L82 PathProgramCache]: Analyzing trace with hash -567522293, now seen corresponding path program 1 times [2018-10-26 19:58:42,089 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:42,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:42,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:42,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:42,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:58:42,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:42,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:58:42,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:58:42,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:58:42,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:58:42,219 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-10-26 19:58:44,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:44,914 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-10-26 19:58:44,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:58:44,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-10-26 19:58:44,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:44,925 INFO L225 Difference]: With dead ends: 2699 [2018-10-26 19:58:44,925 INFO L226 Difference]: Without dead ends: 1768 [2018-10-26 19:58:44,927 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 [2018-10-26 19:58:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-10-26 19:58:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-10-26 19:58:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-10-26 19:58:44,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-10-26 19:58:44,969 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 180 [2018-10-26 19:58:44,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:44,969 INFO L481 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-10-26 19:58:44,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:58:44,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-10-26 19:58:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-10-26 19:58:44,974 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:44,975 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 19:58:44,975 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:44,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:44,976 INFO L82 PathProgramCache]: Analyzing trace with hash -630849601, now seen corresponding path program 1 times [2018-10-26 19:58:44,976 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:44,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:44,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:44,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:44,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:45,122 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-26 19:58:45,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:45,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:58:45,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:58:45,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:58:45,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:58:45,124 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-10-26 19:58:46,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:46,479 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-10-26 19:58:46,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:58:46,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2018-10-26 19:58:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:46,493 INFO L225 Difference]: With dead ends: 4329 [2018-10-26 19:58:46,493 INFO L226 Difference]: Without dead ends: 2580 [2018-10-26 19:58:46,496 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 [2018-10-26 19:58:46,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-10-26 19:58:46,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-10-26 19:58:46,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-10-26 19:58:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-10-26 19:58:46,545 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 188 [2018-10-26 19:58:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:46,546 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-10-26 19:58:46,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:58:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-10-26 19:58:46,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-26 19:58:46,552 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:46,552 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2018-10-26 19:58:46,553 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:46,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:46,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1925347994, now seen corresponding path program 1 times [2018-10-26 19:58:46,553 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:46,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:46,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:46,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:46,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-26 19:58:46,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:46,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:58:46,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:58:46,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:58:46,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:58:46,687 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-10-26 19:58:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:47,491 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-10-26 19:58:47,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:58:47,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-26 19:58:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:47,522 INFO L225 Difference]: With dead ends: 7713 [2018-10-26 19:58:47,523 INFO L226 Difference]: Without dead ends: 5136 [2018-10-26 19:58:47,528 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 [2018-10-26 19:58:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-10-26 19:58:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-10-26 19:58:47,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-10-26 19:58:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-10-26 19:58:47,647 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 194 [2018-10-26 19:58:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:47,647 INFO L481 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-10-26 19:58:47,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:58:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-10-26 19:58:47,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-26 19:58:47,658 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:47,658 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2018-10-26 19:58:47,658 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:47,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1582974829, now seen corresponding path program 1 times [2018-10-26 19:58:47,659 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:47,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:47,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:47,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:47,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-26 19:58:48,013 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 19:58:48,013 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 [2018-10-26 19:58:48,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:48,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:58:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-26 19:58:48,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 19:58:48,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-26 19:58:48,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:58:48,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:58:48,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:48,259 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-10-26 19:58:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:51,404 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-10-26 19:58:51,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:58:51,404 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-10-26 19:58:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:51,477 INFO L225 Difference]: With dead ends: 20487 [2018-10-26 19:58:51,477 INFO L226 Difference]: Without dead ends: 15356 [2018-10-26 19:58:51,488 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-10-26 19:58:51,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-10-26 19:58:51,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-10-26 19:58:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-10-26 19:58:51,747 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 203 [2018-10-26 19:58:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:51,748 INFO L481 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-10-26 19:58:51,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:58:51,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-10-26 19:58:51,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-26 19:58:51,766 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:51,767 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:58:51,767 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:51,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:51,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1172652270, now seen corresponding path program 1 times [2018-10-26 19:58:51,768 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:51,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:51,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:51,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:51,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:52,343 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-26 19:58:52,400 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:58:52,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:52,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:58:52,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 19:58:52,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 19:58:52,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:58:52,405 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-10-26 19:58:55,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:55,208 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-10-26 19:58:55,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 19:58:55,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2018-10-26 19:58:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:55,247 INFO L225 Difference]: With dead ends: 23029 [2018-10-26 19:58:55,247 INFO L226 Difference]: Without dead ends: 12802 [2018-10-26 19:58:55,259 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 19:58:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-10-26 19:58:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-10-26 19:58:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-10-26 19:58:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-10-26 19:58:55,468 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 211 [2018-10-26 19:58:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:55,468 INFO L481 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-10-26 19:58:55,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 19:58:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-10-26 19:58:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-26 19:58:55,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:55,487 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 19:58:55,487 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:55,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:55,488 INFO L82 PathProgramCache]: Analyzing trace with hash 2121835886, now seen corresponding path program 1 times [2018-10-26 19:58:55,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:55,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:55,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:55,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:55,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-26 19:58:55,737 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:55,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:58:55,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:58:55,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:58:55,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:55,738 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-10-26 19:58:58,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:58:58,836 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-10-26 19:58:58,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:58:58,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-10-26 19:58:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:58:58,904 INFO L225 Difference]: With dead ends: 41022 [2018-10-26 19:58:58,904 INFO L226 Difference]: Without dead ends: 29979 [2018-10-26 19:58:58,924 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:58:58,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-10-26 19:58:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-10-26 19:58:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-26 19:58:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-10-26 19:58:59,286 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 211 [2018-10-26 19:58:59,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:58:59,286 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-10-26 19:58:59,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:58:59,287 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-10-26 19:58:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-26 19:58:59,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:58:59,315 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:58:59,315 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:58:59,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:58:59,316 INFO L82 PathProgramCache]: Analyzing trace with hash -946118317, now seen corresponding path program 1 times [2018-10-26 19:58:59,316 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:58:59,316 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:58:59,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:59,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:58:59,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:58:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:58:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 19:58:59,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:58:59,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:58:59,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:58:59,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:58:59,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:58:59,470 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-10-26 19:59:01,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:01,263 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-10-26 19:59:01,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:59:01,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-10-26 19:59:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:01,319 INFO L225 Difference]: With dead ends: 40906 [2018-10-26 19:59:01,320 INFO L226 Difference]: Without dead ends: 20468 [2018-10-26 19:59:01,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:01,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-10-26 19:59:01,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-10-26 19:59:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-26 19:59:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-10-26 19:59:01,621 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 212 [2018-10-26 19:59:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:01,621 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-10-26 19:59:01,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:59:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-10-26 19:59:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-26 19:59:01,651 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:01,651 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:01,651 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:01,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:01,652 INFO L82 PathProgramCache]: Analyzing trace with hash 964240011, now seen corresponding path program 1 times [2018-10-26 19:59:01,652 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:01,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:01,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:01,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-26 19:59:01,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:01,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:01,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:59:01,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:59:01,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:01,794 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-10-26 19:59:03,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:03,411 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-10-26 19:59:03,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:59:03,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-10-26 19:59:03,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:03,462 INFO L225 Difference]: With dead ends: 57404 [2018-10-26 19:59:03,463 INFO L226 Difference]: Without dead ends: 36966 [2018-10-26 19:59:03,489 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:03,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-10-26 19:59:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-10-26 19:59:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-10-26 19:59:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-10-26 19:59:04,008 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 219 [2018-10-26 19:59:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:04,009 INFO L481 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-10-26 19:59:04,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:59:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-10-26 19:59:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-26 19:59:04,054 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:04,054 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:59:04,056 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:04,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:04,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1938525756, now seen corresponding path program 1 times [2018-10-26 19:59:04,062 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:04,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:04,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:04,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:04,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:04,378 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 19:59:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:59:04,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:04,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:04,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:59:04,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:59:04,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:04,422 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-10-26 19:59:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:08,708 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-10-26 19:59:08,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:59:08,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-10-26 19:59:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:08,772 INFO L225 Difference]: With dead ends: 87182 [2018-10-26 19:59:08,773 INFO L226 Difference]: Without dead ends: 50226 [2018-10-26 19:59:08,799 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-10-26 19:59:09,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-10-26 19:59:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-10-26 19:59:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-10-26 19:59:09,457 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 227 [2018-10-26 19:59:09,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:09,457 INFO L481 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-10-26 19:59:09,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:59:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-10-26 19:59:09,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-26 19:59:09,481 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:09,482 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:09,482 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:09,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:09,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1732676009, now seen corresponding path program 1 times [2018-10-26 19:59:09,483 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:09,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:09,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:09,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:09,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-26 19:59:09,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:09,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:59:09,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:59:09,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:59:09,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:09,692 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-10-26 19:59:10,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:10,670 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-10-26 19:59:10,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:59:10,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-10-26 19:59:10,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:10,729 INFO L225 Difference]: With dead ends: 99538 [2018-10-26 19:59:10,729 INFO L226 Difference]: Without dead ends: 49322 [2018-10-26 19:59:10,761 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 [2018-10-26 19:59:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-10-26 19:59:11,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-10-26 19:59:11,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-10-26 19:59:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-10-26 19:59:11,240 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 261 [2018-10-26 19:59:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:11,241 INFO L481 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-10-26 19:59:11,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:59:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-10-26 19:59:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-10-26 19:59:11,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:11,258 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:11,258 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:11,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:11,258 INFO L82 PathProgramCache]: Analyzing trace with hash 89359678, now seen corresponding path program 1 times [2018-10-26 19:59:11,259 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:11,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:11,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:11,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:11,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-26 19:59:11,924 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:11,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:11,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:59:11,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:59:11,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:11,925 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-10-26 19:59:14,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:14,192 INFO L93 Difference]: Finished difference Result 161219 states and 186079 transitions. [2018-10-26 19:59:14,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:59:14,192 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2018-10-26 19:59:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:14,312 INFO L225 Difference]: With dead ends: 161219 [2018-10-26 19:59:14,312 INFO L226 Difference]: Without dead ends: 111899 [2018-10-26 19:59:14,355 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:14,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111899 states. [2018-10-26 19:59:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111899 to 82368. [2018-10-26 19:59:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-10-26 19:59:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94333 transitions. [2018-10-26 19:59:15,326 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94333 transitions. Word has length 303 [2018-10-26 19:59:15,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:15,327 INFO L481 AbstractCegarLoop]: Abstraction has 82368 states and 94333 transitions. [2018-10-26 19:59:15,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:59:15,327 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94333 transitions. [2018-10-26 19:59:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-26 19:59:15,361 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:15,361 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-26 19:59:15,362 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:15,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:15,362 INFO L82 PathProgramCache]: Analyzing trace with hash -2062689804, now seen corresponding path program 1 times [2018-10-26 19:59:15,362 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:15,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:15,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:15,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:15,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-26 19:59:15,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:15,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:59:15,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:59:15,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:59:15,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:15,680 INFO L87 Difference]: Start difference. First operand 82368 states and 94333 transitions. Second operand 4 states. [2018-10-26 19:59:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:18,333 INFO L93 Difference]: Finished difference Result 173569 states and 198229 transitions. [2018-10-26 19:59:18,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:59:18,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-26 19:59:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:18,429 INFO L225 Difference]: With dead ends: 173569 [2018-10-26 19:59:18,429 INFO L226 Difference]: Without dead ends: 91203 [2018-10-26 19:59:18,478 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91203 states. [2018-10-26 19:59:19,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91203 to 82776. [2018-10-26 19:59:19,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82776 states. [2018-10-26 19:59:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82776 states to 82776 states and 94429 transitions. [2018-10-26 19:59:19,367 INFO L78 Accepts]: Start accepts. Automaton has 82776 states and 94429 transitions. Word has length 314 [2018-10-26 19:59:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:19,368 INFO L481 AbstractCegarLoop]: Abstraction has 82776 states and 94429 transitions. [2018-10-26 19:59:19,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:59:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 82776 states and 94429 transitions. [2018-10-26 19:59:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-26 19:59:19,401 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:19,401 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:59:19,402 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:19,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:19,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152879, now seen corresponding path program 1 times [2018-10-26 19:59:19,402 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:19,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:19,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:19,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:19,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:59:19,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:19,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 19:59:19,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:59:19,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:59:19,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:19,843 INFO L87 Difference]: Start difference. First operand 82776 states and 94429 transitions. Second operand 4 states. [2018-10-26 19:59:21,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:21,883 INFO L93 Difference]: Finished difference Result 317582 states and 361649 transitions. [2018-10-26 19:59:21,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:59:21,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-26 19:59:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:22,166 INFO L225 Difference]: With dead ends: 317582 [2018-10-26 19:59:22,167 INFO L226 Difference]: Without dead ends: 234808 [2018-10-26 19:59:22,231 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234808 states. [2018-10-26 19:59:24,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234808 to 158168. [2018-10-26 19:59:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158168 states. [2018-10-26 19:59:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158168 states to 158168 states and 180159 transitions. [2018-10-26 19:59:24,185 INFO L78 Accepts]: Start accepts. Automaton has 158168 states and 180159 transitions. Word has length 314 [2018-10-26 19:59:24,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:24,185 INFO L481 AbstractCegarLoop]: Abstraction has 158168 states and 180159 transitions. [2018-10-26 19:59:24,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:59:24,185 INFO L276 IsEmpty]: Start isEmpty. Operand 158168 states and 180159 transitions. [2018-10-26 19:59:24,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-26 19:59:24,221 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:24,221 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:24,222 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:24,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:24,222 INFO L82 PathProgramCache]: Analyzing trace with hash -839404260, now seen corresponding path program 1 times [2018-10-26 19:59:24,222 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:24,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:24,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:24,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:24,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-26 19:59:24,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:24,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:24,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 19:59:24,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 19:59:24,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:24,563 INFO L87 Difference]: Start difference. First operand 158168 states and 180159 transitions. Second operand 4 states. [2018-10-26 19:59:28,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:28,957 INFO L93 Difference]: Finished difference Result 459232 states and 520430 transitions. [2018-10-26 19:59:28,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 19:59:28,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2018-10-26 19:59:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:29,358 INFO L225 Difference]: With dead ends: 459232 [2018-10-26 19:59:29,358 INFO L226 Difference]: Without dead ends: 301066 [2018-10-26 19:59:29,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 19:59:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301066 states. [2018-10-26 19:59:33,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301066 to 301056. [2018-10-26 19:59:33,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301056 states. [2018-10-26 19:59:33,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301056 states to 301056 states and 340034 transitions. [2018-10-26 19:59:33,985 INFO L78 Accepts]: Start accepts. Automaton has 301056 states and 340034 transitions. Word has length 320 [2018-10-26 19:59:33,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:33,985 INFO L481 AbstractCegarLoop]: Abstraction has 301056 states and 340034 transitions. [2018-10-26 19:59:33,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 19:59:33,985 INFO L276 IsEmpty]: Start isEmpty. Operand 301056 states and 340034 transitions. [2018-10-26 19:59:34,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-26 19:59:34,024 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:34,024 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:34,024 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:34,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:34,025 INFO L82 PathProgramCache]: Analyzing trace with hash 961237387, now seen corresponding path program 1 times [2018-10-26 19:59:34,025 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:34,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:34,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:34,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:34,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:34,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:34,320 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-26 19:59:34,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:34,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:34,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:59:34,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:59:34,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:34,321 INFO L87 Difference]: Start difference. First operand 301056 states and 340034 transitions. Second operand 3 states. [2018-10-26 19:59:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:39,152 INFO L93 Difference]: Finished difference Result 570008 states and 644767 transitions. [2018-10-26 19:59:39,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:59:39,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2018-10-26 19:59:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:39,506 INFO L225 Difference]: With dead ends: 570008 [2018-10-26 19:59:39,506 INFO L226 Difference]: Without dead ends: 268954 [2018-10-26 19:59:39,638 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268954 states. [2018-10-26 19:59:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268954 to 268890. [2018-10-26 19:59:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268890 states. [2018-10-26 19:59:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268890 states to 268890 states and 299592 transitions. [2018-10-26 19:59:50,151 INFO L78 Accepts]: Start accepts. Automaton has 268890 states and 299592 transitions. Word has length 320 [2018-10-26 19:59:50,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:50,151 INFO L481 AbstractCegarLoop]: Abstraction has 268890 states and 299592 transitions. [2018-10-26 19:59:50,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:59:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 268890 states and 299592 transitions. [2018-10-26 19:59:50,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-26 19:59:50,196 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:50,196 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:59:50,196 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:50,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:50,197 INFO L82 PathProgramCache]: Analyzing trace with hash -866630993, now seen corresponding path program 1 times [2018-10-26 19:59:50,197 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:50,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:50,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:50,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:50,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:59:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:59:50,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:59:50,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:59:50,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:59:50,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:59:50,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:50,491 INFO L87 Difference]: Start difference. First operand 268890 states and 299592 transitions. Second operand 3 states. [2018-10-26 19:59:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:59:54,116 INFO L93 Difference]: Finished difference Result 547806 states and 611035 transitions. [2018-10-26 19:59:54,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:59:54,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2018-10-26 19:59:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:59:54,443 INFO L225 Difference]: With dead ends: 547806 [2018-10-26 19:59:54,444 INFO L226 Difference]: Without dead ends: 278918 [2018-10-26 19:59:54,549 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:59:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278918 states. [2018-10-26 19:59:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278918 to 278914. [2018-10-26 19:59:58,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278914 states. [2018-10-26 19:59:58,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278914 states to 278914 states and 308572 transitions. [2018-10-26 19:59:58,763 INFO L78 Accepts]: Start accepts. Automaton has 278914 states and 308572 transitions. Word has length 324 [2018-10-26 19:59:58,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:59:58,763 INFO L481 AbstractCegarLoop]: Abstraction has 278914 states and 308572 transitions. [2018-10-26 19:59:58,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:59:58,764 INFO L276 IsEmpty]: Start isEmpty. Operand 278914 states and 308572 transitions. [2018-10-26 19:59:58,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-10-26 19:59:58,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:59:58,819 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 19:59:58,819 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:59:58,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:59:58,820 INFO L82 PathProgramCache]: Analyzing trace with hash -944323539, now seen corresponding path program 1 times [2018-10-26 19:59:58,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:59:58,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:59:58,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:58,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:59:58,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:59:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:00:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-26 20:00:00,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 20:00:00,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 20:00:00,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 20:00:00,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 20:00:00,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:00:00,217 INFO L87 Difference]: Start difference. First operand 278914 states and 308572 transitions. Second operand 4 states. [2018-10-26 20:00:04,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:00:04,062 INFO L93 Difference]: Finished difference Result 574431 states and 636392 transitions. [2018-10-26 20:00:04,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 20:00:04,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2018-10-26 20:00:04,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:00:04,530 INFO L225 Difference]: With dead ends: 574431 [2018-10-26 20:00:04,531 INFO L226 Difference]: Without dead ends: 295519 [2018-10-26 20:00:04,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 20:00:04,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295519 states. [2018-10-26 20:00:09,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295519 to 295465. [2018-10-26 20:00:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295465 states. [2018-10-26 20:00:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295465 states to 295465 states and 326614 transitions. [2018-10-26 20:00:10,195 INFO L78 Accepts]: Start accepts. Automaton has 295465 states and 326614 transitions. Word has length 331 [2018-10-26 20:00:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:00:10,196 INFO L481 AbstractCegarLoop]: Abstraction has 295465 states and 326614 transitions. [2018-10-26 20:00:10,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 20:00:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 295465 states and 326614 transitions. [2018-10-26 20:00:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-26 20:00:10,238 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 20:00:10,239 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 20:00:10,239 INFO L424 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 20:00:10,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 20:00:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash 491247765, now seen corresponding path program 1 times [2018-10-26 20:00:10,240 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 20:00:10,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 20:00:10,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:00:10,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:00:10,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 20:00:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:00:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-26 20:00:10,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 20:00:10,454 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 [2018-10-26 20:00:10,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 20:00:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 20:00:10,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 20:00:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-26 20:00:10,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 20:00:10,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 20:00:10,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 20:00:10,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 20:00:10,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 20:00:10,868 INFO L87 Difference]: Start difference. First operand 295465 states and 326614 transitions. Second operand 6 states. [2018-10-26 20:00:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 20:00:25,288 INFO L93 Difference]: Finished difference Result 795734 states and 882981 transitions. [2018-10-26 20:00:25,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 20:00:25,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2018-10-26 20:00:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 20:00:25,289 INFO L225 Difference]: With dead ends: 795734 [2018-10-26 20:00:25,289 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 20:00:25,467 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-26 20:00:25,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 20:00:25,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 20:00:25,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 20:00:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 20:00:25,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2018-10-26 20:00:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 20:00:25,468 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 20:00:25,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 20:00:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 20:00:25,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 20:00:25,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 20:00:28,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:28,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:29,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:29,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:30,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:30,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:34,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:34,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:35,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:36,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,511 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:37,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:38,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:39,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:39,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:39,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:40,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:40,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:41,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:41,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:41,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:41,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:42,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:42,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:42,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:42,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:43,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:43,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:43,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:43,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:43,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:44,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:44,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:44,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:44,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:45,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:45,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:45,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:45,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:46,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:46,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:47,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:48,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:48,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:49,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:49,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:49,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:49,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,735 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:51,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:52,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:52,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:52,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:52,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:53,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:53,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:54,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:54,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:54,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:54,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:55,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:55,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:56,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:56,611 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:56,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:56,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:56,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:58,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:58,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:58,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:58,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:00:58,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:00,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:01,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:04,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:05,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:05,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:06,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:06,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:06,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:06,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:07,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:07,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:10,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:10,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:13,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:14,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:14,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:14,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:17,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:17,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:22,831 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:27,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:30,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:30,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:32,967 WARN L179 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 3632 DAG size of output: 2350 [2018-10-26 20:01:34,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:34,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:35,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:35,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:36,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:36,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:40,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:40,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:41,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:42,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:43,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:44,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:44,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:44,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:44,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:45,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:45,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:45,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:45,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:46,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:46,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:47,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:47,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:47,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:47,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:47,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:48,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:48,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:48,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:49,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:50,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:50,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:50,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:50,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:51,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:51,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:51,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:51,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:52,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:52,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:53,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:53,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:54,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:55,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:55,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:55,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:55,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:56,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:57,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:57,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:57,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:57,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:57,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:58,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:58,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:58,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:58,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:59,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:01:59,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:00,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:00,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:01,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:01,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:02,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:02,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:02,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:03,064 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:03,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:03,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:03,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:04,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:05,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:05,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:05,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:05,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:07,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:07,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:11,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:12,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:12,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:13,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:14,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:14,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:14,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:14,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 20:02:15,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-26 20:02:15,656 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-26 20:02:15,657 INFO L168 Benchmark]: Toolchain (without parser) took 229321.06 ms. Allocated memory was 1.5 GB in the beginning and 5.7 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,659 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. [2018-10-26 20:02:15,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1129.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 289.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,661 INFO L168 Benchmark]: Boogie Preprocessor took 148.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,661 INFO L168 Benchmark]: RCFGBuilder took 5550.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,662 INFO L168 Benchmark]: TraceAbstraction took 222197.06 ms. Allocated memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: 3.4 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -836.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-26 20:02:15,667 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 1129.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 289.92 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -896.0 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.68 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5550.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 268.2 MB). Peak memory consumption was 268.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222197.06 ms. Allocated memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: 3.4 GB). Free memory was 2.0 GB in the beginning and 2.8 GB in the end (delta: -836.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1545]: 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 3617. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown