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/Problem12_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:14:38,411 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:14:38,413 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:14:38,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:14:38,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:14:38,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:14:38,435 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:14:38,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:14:38,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:14:38,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:14:38,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:14:38,444 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:14:38,445 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:14:38,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:14:38,448 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:14:38,456 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:14:38,457 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:14:38,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:14:38,464 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:14:38,465 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:14:38,466 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:14:38,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:14:38,472 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:14:38,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:14:38,473 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:14:38,475 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:14:38,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:14:38,477 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:14:38,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:14:38,480 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:14:38,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:14:38,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:14:38,483 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:14:38,483 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:14:38,484 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:14:38,485 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:14:38,485 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 21:14:38,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:14:38,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:14:38,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:14:38,516 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:14:38,517 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:14:38,517 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:14:38,517 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:14:38,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:14:38,518 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:14:38,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:14:38,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:14:38,518 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:14:38,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:14:38,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:14:38,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:14:38,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:14:38,520 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:14:38,520 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:14:38,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:14:38,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:14:38,522 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:14:38,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:14:38,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:14:38,523 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:14:38,523 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:14:38,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:14:38,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:14:38,524 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:14:38,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:14:38,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:14:38,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:14:38,613 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:14:38,614 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:14:38,615 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-10-26 21:14:38,679 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/570658ebe/04b2edea86fb498f97c5445d2d54e516/FLAG38b54cee0 [2018-10-26 21:14:39,411 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:14:39,412 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label05_true-unreach-call.c [2018-10-26 21:14:39,439 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/570658ebe/04b2edea86fb498f97c5445d2d54e516/FLAG38b54cee0 [2018-10-26 21:14:39,454 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/570658ebe/04b2edea86fb498f97c5445d2d54e516 [2018-10-26 21:14:39,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:14:39,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:14:39,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:14:39,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:14:39,473 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:14:39,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:14:39" (1/1) ... [2018-10-26 21:14:39,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bedfbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:39, skipping insertion in model container [2018-10-26 21:14:39,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:14:39" (1/1) ... [2018-10-26 21:14:39,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:14:39,622 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:14:40,963 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:14:40,967 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:14:41,555 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:14:41,590 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:14:41,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41 WrapperNode [2018-10-26 21:14:41,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:14:41,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:14:41,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:14:41,593 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:14:41,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:41,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:14:42,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:14:42,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:14:42,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:14:42,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (1/1) ... [2018-10-26 21:14:42,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:14:42,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:14:42,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:14:42,576 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:14:42,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (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 21:14:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:14:42,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:14:42,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:14:51,833 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:14:51,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:14:51 BoogieIcfgContainer [2018-10-26 21:14:51,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:14:51,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:14:51,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:14:51,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:14:51,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:14:39" (1/3) ... [2018-10-26 21:14:51,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8c4dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:14:51, skipping insertion in model container [2018-10-26 21:14:51,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:14:41" (2/3) ... [2018-10-26 21:14:51,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8c4dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:14:51, skipping insertion in model container [2018-10-26 21:14:51,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:14:51" (3/3) ... [2018-10-26 21:14:51,845 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label05_true-unreach-call.c [2018-10-26 21:14:51,857 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:14:51,866 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:14:51,886 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:14:51,940 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:14:51,941 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:14:51,941 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:14:51,941 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:14:51,941 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:14:51,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:14:51,942 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:14:51,942 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:14:51,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:14:51,988 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-26 21:14:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-26 21:14:51,998 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:14:51,999 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] [2018-10-26 21:14:52,002 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:14:52,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:14:52,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1074201598, now seen corresponding path program 1 times [2018-10-26 21:14:52,010 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:14:52,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:14:52,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:14:52,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:14:52,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:14:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:14:52,522 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-26 21:14:52,541 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 21:14:52,543 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:14:52,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:14:52,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:14:52,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:14:52,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:14:52,568 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-26 21:15:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:07,895 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-26 21:15:07,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:15:07,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-26 21:15:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:07,942 INFO L225 Difference]: With dead ends: 3146 [2018-10-26 21:15:07,942 INFO L226 Difference]: Without dead ends: 2320 [2018-10-26 21:15:07,950 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 21:15:07,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-26 21:15:08,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-26 21:15:08,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-26 21:15:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3858 transitions. [2018-10-26 21:15:08,107 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3858 transitions. Word has length 60 [2018-10-26 21:15:08,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:08,108 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 3858 transitions. [2018-10-26 21:15:08,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:15:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3858 transitions. [2018-10-26 21:15:08,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-26 21:15:08,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:08,120 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:08,124 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:08,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:08,124 INFO L82 PathProgramCache]: Analyzing trace with hash -739096271, now seen corresponding path program 1 times [2018-10-26 21:15:08,124 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:08,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:08,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:08,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:08,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:08,701 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-26 21:15:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 52 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:15:08,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:15:08,856 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 21:15:08,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:08,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:15:09,085 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:15:09,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:15:09,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-26 21:15:09,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:15:09,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:15:09,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:15:09,120 INFO L87 Difference]: Start difference. First operand 2320 states and 3858 transitions. Second operand 7 states. [2018-10-26 21:15:34,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:34,092 INFO L93 Difference]: Finished difference Result 15950 states and 27417 transitions. [2018-10-26 21:15:34,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 21:15:34,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2018-10-26 21:15:34,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:34,147 INFO L225 Difference]: With dead ends: 15950 [2018-10-26 21:15:34,147 INFO L226 Difference]: Without dead ends: 11373 [2018-10-26 21:15:34,156 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:15:34,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11373 states. [2018-10-26 21:15:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11373 to 6831. [2018-10-26 21:15:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6831 states. [2018-10-26 21:15:34,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6831 states to 6831 states and 8672 transitions. [2018-10-26 21:15:34,331 INFO L78 Accepts]: Start accepts. Automaton has 6831 states and 8672 transitions. Word has length 132 [2018-10-26 21:15:34,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:34,332 INFO L481 AbstractCegarLoop]: Abstraction has 6831 states and 8672 transitions. [2018-10-26 21:15:34,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:15:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 6831 states and 8672 transitions. [2018-10-26 21:15:34,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-10-26 21:15:34,347 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:34,348 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, 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] [2018-10-26 21:15:34,349 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:34,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:34,349 INFO L82 PathProgramCache]: Analyzing trace with hash 959738635, now seen corresponding path program 1 times [2018-10-26 21:15:34,349 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:34,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:34,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:34,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:34,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:34,869 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 21:15:34,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:34,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:15:34,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:15:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:15:34,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:15:34,874 INFO L87 Difference]: Start difference. First operand 6831 states and 8672 transitions. Second operand 4 states. [2018-10-26 21:15:42,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:42,853 INFO L93 Difference]: Finished difference Result 26444 states and 33663 transitions. [2018-10-26 21:15:42,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:15:42,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 275 [2018-10-26 21:15:42,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:42,938 INFO L225 Difference]: With dead ends: 26444 [2018-10-26 21:15:42,938 INFO L226 Difference]: Without dead ends: 19615 [2018-10-26 21:15:42,952 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:15:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19615 states. [2018-10-26 21:15:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19615 to 19615. [2018-10-26 21:15:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19615 states. [2018-10-26 21:15:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19615 states to 19615 states and 24199 transitions. [2018-10-26 21:15:43,313 INFO L78 Accepts]: Start accepts. Automaton has 19615 states and 24199 transitions. Word has length 275 [2018-10-26 21:15:43,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:43,314 INFO L481 AbstractCegarLoop]: Abstraction has 19615 states and 24199 transitions. [2018-10-26 21:15:43,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:15:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 19615 states and 24199 transitions. [2018-10-26 21:15:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2018-10-26 21:15:43,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:43,322 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:15:43,323 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:43,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:43,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1039496053, now seen corresponding path program 1 times [2018-10-26 21:15:43,323 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:43,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:43,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:43,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:43,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:43,712 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 21:15:44,009 WARN L179 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-10-26 21:15:44,462 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-26 21:15:44,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:15:44,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:15:44,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:15:44,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:15:44,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:15:44,464 INFO L87 Difference]: Start difference. First operand 19615 states and 24199 transitions. Second operand 6 states. [2018-10-26 21:15:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:15:54,075 INFO L93 Difference]: Finished difference Result 57277 states and 70860 transitions. [2018-10-26 21:15:54,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:15:54,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 275 [2018-10-26 21:15:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:15:54,147 INFO L225 Difference]: With dead ends: 57277 [2018-10-26 21:15:54,148 INFO L226 Difference]: Without dead ends: 37664 [2018-10-26 21:15:54,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:15:54,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37664 states. [2018-10-26 21:15:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37664 to 37664. [2018-10-26 21:15:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37664 states. [2018-10-26 21:15:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37664 states to 37664 states and 44629 transitions. [2018-10-26 21:15:55,132 INFO L78 Accepts]: Start accepts. Automaton has 37664 states and 44629 transitions. Word has length 275 [2018-10-26 21:15:55,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:15:55,132 INFO L481 AbstractCegarLoop]: Abstraction has 37664 states and 44629 transitions. [2018-10-26 21:15:55,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:15:55,133 INFO L276 IsEmpty]: Start isEmpty. Operand 37664 states and 44629 transitions. [2018-10-26 21:15:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-26 21:15:55,143 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:15:55,143 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:15:55,144 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:15:55,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:15:55,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1631092900, now seen corresponding path program 1 times [2018-10-26 21:15:55,145 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:15:55,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:15:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:55,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:15:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:55,576 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 115 proven. 4 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2018-10-26 21:15:55,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:15:55,577 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 21:15:55,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:15:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:15:55,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:15:55,803 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:15:55,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:15:55,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-26 21:15:55,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:15:55,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:15:55,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:15:55,842 INFO L87 Difference]: Start difference. First operand 37664 states and 44629 transitions. Second operand 4 states. [2018-10-26 21:16:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:05,260 INFO L93 Difference]: Finished difference Result 113739 states and 137973 transitions. [2018-10-26 21:16:05,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:16:05,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2018-10-26 21:16:05,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:05,365 INFO L225 Difference]: With dead ends: 113739 [2018-10-26 21:16:05,366 INFO L226 Difference]: Without dead ends: 76077 [2018-10-26 21:16:05,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 308 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 21:16:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76077 states. [2018-10-26 21:16:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76077 to 50448. [2018-10-26 21:16:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50448 states. [2018-10-26 21:16:06,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50448 states to 50448 states and 59938 transitions. [2018-10-26 21:16:06,625 INFO L78 Accepts]: Start accepts. Automaton has 50448 states and 59938 transitions. Word has length 308 [2018-10-26 21:16:06,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:06,626 INFO L481 AbstractCegarLoop]: Abstraction has 50448 states and 59938 transitions. [2018-10-26 21:16:06,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:16:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 50448 states and 59938 transitions. [2018-10-26 21:16:06,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-10-26 21:16:06,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:16:06,640 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:16:06,640 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:16:06,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:16:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash 444586520, now seen corresponding path program 1 times [2018-10-26 21:16:06,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:16:06,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:16:06,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:06,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:06,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-26 21:16:06,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:16:06,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:16:06,941 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:16:06,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:16:06,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:16:06,941 INFO L87 Difference]: Start difference. First operand 50448 states and 59938 transitions. Second operand 3 states. [2018-10-26 21:16:11,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:11,978 INFO L93 Difference]: Finished difference Result 111422 states and 133221 transitions. [2018-10-26 21:16:11,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:16:11,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 362 [2018-10-26 21:16:11,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:12,046 INFO L225 Difference]: With dead ends: 111422 [2018-10-26 21:16:12,047 INFO L226 Difference]: Without dead ends: 60976 [2018-10-26 21:16:12,088 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 21:16:12,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60976 states. [2018-10-26 21:16:12,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60976 to 58720. [2018-10-26 21:16:12,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58720 states. [2018-10-26 21:16:12,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58720 states to 58720 states and 68483 transitions. [2018-10-26 21:16:12,731 INFO L78 Accepts]: Start accepts. Automaton has 58720 states and 68483 transitions. Word has length 362 [2018-10-26 21:16:12,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:12,732 INFO L481 AbstractCegarLoop]: Abstraction has 58720 states and 68483 transitions. [2018-10-26 21:16:12,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:16:12,732 INFO L276 IsEmpty]: Start isEmpty. Operand 58720 states and 68483 transitions. [2018-10-26 21:16:12,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2018-10-26 21:16:12,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:16:12,748 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:16:12,748 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:16:12,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:16:12,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1785389000, now seen corresponding path program 1 times [2018-10-26 21:16:12,749 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:16:12,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:16:12,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:12,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:12,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-26 21:16:13,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:16:13,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:16:13,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:16:13,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:16:13,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:16:13,030 INFO L87 Difference]: Start difference. First operand 58720 states and 68483 transitions. Second operand 4 states. [2018-10-26 21:16:20,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:20,528 INFO L93 Difference]: Finished difference Result 119694 states and 139344 transitions. [2018-10-26 21:16:20,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:16:20,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 394 [2018-10-26 21:16:20,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:20,599 INFO L225 Difference]: With dead ends: 119694 [2018-10-26 21:16:20,599 INFO L226 Difference]: Without dead ends: 60976 [2018-10-26 21:16:20,638 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 21:16:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60976 states. [2018-10-26 21:16:21,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60976 to 60223. [2018-10-26 21:16:21,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60223 states. [2018-10-26 21:16:21,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60223 states to 60223 states and 68815 transitions. [2018-10-26 21:16:21,211 INFO L78 Accepts]: Start accepts. Automaton has 60223 states and 68815 transitions. Word has length 394 [2018-10-26 21:16:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:21,212 INFO L481 AbstractCegarLoop]: Abstraction has 60223 states and 68815 transitions. [2018-10-26 21:16:21,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:16:21,212 INFO L276 IsEmpty]: Start isEmpty. Operand 60223 states and 68815 transitions. [2018-10-26 21:16:21,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2018-10-26 21:16:21,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:16:21,223 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:16:21,223 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:16:21,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:16:21,224 INFO L82 PathProgramCache]: Analyzing trace with hash -484989361, now seen corresponding path program 1 times [2018-10-26 21:16:21,224 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:16:21,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:16:21,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:21,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:21,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-26 21:16:21,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:16:21,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:16:21,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:16:21,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:16:21,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:16:21,568 INFO L87 Difference]: Start difference. First operand 60223 states and 68815 transitions. Second operand 3 states. [2018-10-26 21:16:27,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:27,197 INFO L93 Difference]: Finished difference Result 136988 states and 158243 transitions. [2018-10-26 21:16:27,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:16:27,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 401 [2018-10-26 21:16:27,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:27,276 INFO L225 Difference]: With dead ends: 136988 [2018-10-26 21:16:27,276 INFO L226 Difference]: Without dead ends: 76767 [2018-10-26 21:16:27,313 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:16:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76767 states. [2018-10-26 21:16:27,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76767 to 76767. [2018-10-26 21:16:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76767 states. [2018-10-26 21:16:27,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76767 states to 76767 states and 88455 transitions. [2018-10-26 21:16:27,982 INFO L78 Accepts]: Start accepts. Automaton has 76767 states and 88455 transitions. Word has length 401 [2018-10-26 21:16:27,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:27,983 INFO L481 AbstractCegarLoop]: Abstraction has 76767 states and 88455 transitions. [2018-10-26 21:16:27,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:16:27,983 INFO L276 IsEmpty]: Start isEmpty. Operand 76767 states and 88455 transitions. [2018-10-26 21:16:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2018-10-26 21:16:27,995 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:16:27,995 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:16:27,995 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:16:27,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:16:27,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1560089356, now seen corresponding path program 1 times [2018-10-26 21:16:27,996 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:16:27,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:16:27,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:27,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:27,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-26 21:16:28,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:16:28,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:16:28,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:16:28,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:16:28,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:16:28,548 INFO L87 Difference]: Start difference. First operand 76767 states and 88455 transitions. Second operand 4 states. [2018-10-26 21:16:36,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:16:36,782 INFO L93 Difference]: Finished difference Result 210684 states and 243695 transitions. [2018-10-26 21:16:36,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:16:36,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 418 [2018-10-26 21:16:36,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:16:36,914 INFO L225 Difference]: With dead ends: 210684 [2018-10-26 21:16:36,915 INFO L226 Difference]: Without dead ends: 127893 [2018-10-26 21:16:36,952 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:16:37,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127893 states. [2018-10-26 21:16:37,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127893 to 125637. [2018-10-26 21:16:37,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125637 states. [2018-10-26 21:16:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125637 states to 125637 states and 138432 transitions. [2018-10-26 21:16:38,088 INFO L78 Accepts]: Start accepts. Automaton has 125637 states and 138432 transitions. Word has length 418 [2018-10-26 21:16:38,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:16:38,089 INFO L481 AbstractCegarLoop]: Abstraction has 125637 states and 138432 transitions. [2018-10-26 21:16:38,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:16:38,089 INFO L276 IsEmpty]: Start isEmpty. Operand 125637 states and 138432 transitions. [2018-10-26 21:16:38,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-10-26 21:16:38,099 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:16:38,099 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:16:38,099 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:16:38,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:16:38,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2056982082, now seen corresponding path program 1 times [2018-10-26 21:16:38,100 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:16:38,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:16:38,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:38,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:38,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:16:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:38,647 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-10-26 21:16:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 58 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-26 21:16:38,760 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:16:38,760 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:16:38,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:16:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:16:38,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:16:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 58 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-26 21:16:39,223 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:16:39,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-10-26 21:16:39,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:16:39,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:16:39,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:16:39,226 INFO L87 Difference]: Start difference. First operand 125637 states and 138432 transitions. Second operand 6 states. [2018-10-26 21:17:00,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:17:00,207 INFO L93 Difference]: Finished difference Result 323472 states and 355373 transitions. [2018-10-26 21:17:00,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:17:00,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 422 [2018-10-26 21:17:00,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:17:00,429 INFO L225 Difference]: With dead ends: 323472 [2018-10-26 21:17:00,429 INFO L226 Difference]: Without dead ends: 196330 [2018-10-26 21:17:00,512 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 423 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:17:00,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196330 states. [2018-10-26 21:17:02,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196330 to 166243. [2018-10-26 21:17:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166243 states. [2018-10-26 21:17:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166243 states to 166243 states and 181013 transitions. [2018-10-26 21:17:02,808 INFO L78 Accepts]: Start accepts. Automaton has 166243 states and 181013 transitions. Word has length 422 [2018-10-26 21:17:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:17:02,808 INFO L481 AbstractCegarLoop]: Abstraction has 166243 states and 181013 transitions. [2018-10-26 21:17:02,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:17:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 166243 states and 181013 transitions. [2018-10-26 21:17:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2018-10-26 21:17:02,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:17:02,819 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:17:02,819 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:17:02,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:17:02,820 INFO L82 PathProgramCache]: Analyzing trace with hash -322583633, now seen corresponding path program 1 times [2018-10-26 21:17:02,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:17:02,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:17:02,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:02,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:02,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:03,388 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-26 21:17:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 311 proven. 143 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-26 21:17:03,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:17:03,754 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:17:03,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:03,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:17:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 399 proven. 55 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-26 21:17:04,706 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:17:04,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2018-10-26 21:17:04,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 21:17:04,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 21:17:04,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-26 21:17:04,707 INFO L87 Difference]: Start difference. First operand 166243 states and 181013 transitions. Second operand 10 states. [2018-10-26 21:17:29,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:17:29,679 INFO L93 Difference]: Finished difference Result 349780 states and 381190 transitions. [2018-10-26 21:17:29,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-26 21:17:29,680 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 449 [2018-10-26 21:17:29,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:17:29,924 INFO L225 Difference]: With dead ends: 349780 [2018-10-26 21:17:29,924 INFO L226 Difference]: Without dead ends: 176762 [2018-10-26 21:17:30,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 446 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2018-10-26 21:17:30,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176762 states. [2018-10-26 21:17:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176762 to 166986. [2018-10-26 21:17:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166986 states. [2018-10-26 21:17:32,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166986 states to 166986 states and 180669 transitions. [2018-10-26 21:17:32,686 INFO L78 Accepts]: Start accepts. Automaton has 166986 states and 180669 transitions. Word has length 449 [2018-10-26 21:17:32,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:17:32,686 INFO L481 AbstractCegarLoop]: Abstraction has 166986 states and 180669 transitions. [2018-10-26 21:17:32,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 21:17:32,687 INFO L276 IsEmpty]: Start isEmpty. Operand 166986 states and 180669 transitions. [2018-10-26 21:17:32,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-10-26 21:17:32,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:17:32,696 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:17:32,696 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:17:32,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:17:32,697 INFO L82 PathProgramCache]: Analyzing trace with hash -382110508, now seen corresponding path program 1 times [2018-10-26 21:17:32,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:17:32,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:17:32,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:32,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:32,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:32,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-26 21:17:33,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:17:33,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:17:33,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:17:33,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:17:33,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:17:33,147 INFO L87 Difference]: Start difference. First operand 166986 states and 180669 transitions. Second operand 4 states. [2018-10-26 21:17:42,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:17:42,555 INFO L93 Difference]: Finished difference Result 346002 states and 374537 transitions. [2018-10-26 21:17:42,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:17:42,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 463 [2018-10-26 21:17:42,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:17:42,762 INFO L225 Difference]: With dead ends: 346002 [2018-10-26 21:17:42,762 INFO L226 Difference]: Without dead ends: 179770 [2018-10-26 21:17:42,855 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:17:42,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179770 states. [2018-10-26 21:17:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179770 to 179770. [2018-10-26 21:17:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179770 states. [2018-10-26 21:17:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179770 states to 179770 states and 192043 transitions. [2018-10-26 21:17:45,727 INFO L78 Accepts]: Start accepts. Automaton has 179770 states and 192043 transitions. Word has length 463 [2018-10-26 21:17:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:17:45,727 INFO L481 AbstractCegarLoop]: Abstraction has 179770 states and 192043 transitions. [2018-10-26 21:17:45,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:17:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 179770 states and 192043 transitions. [2018-10-26 21:17:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2018-10-26 21:17:45,743 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:17:45,743 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:17:45,744 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:17:45,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:17:45,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1020320554, now seen corresponding path program 1 times [2018-10-26 21:17:45,744 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:17:45,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:17:45,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:45,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:45,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:46,095 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 496 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-26 21:17:46,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:17:46,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:17:46,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:17:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:17:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:17:46,097 INFO L87 Difference]: Start difference. First operand 179770 states and 192043 transitions. Second operand 4 states. [2018-10-26 21:18:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:18:01,438 INFO L93 Difference]: Finished difference Result 358786 states and 383327 transitions. [2018-10-26 21:18:01,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:18:01,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 492 [2018-10-26 21:18:01,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:18:01,659 INFO L225 Difference]: With dead ends: 358786 [2018-10-26 21:18:01,659 INFO L226 Difference]: Without dead ends: 179017 [2018-10-26 21:18:01,736 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 21:18:01,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179017 states. [2018-10-26 21:18:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179017 to 176761. [2018-10-26 21:18:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176761 states. [2018-10-26 21:18:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176761 states to 176761 states and 187136 transitions. [2018-10-26 21:18:03,218 INFO L78 Accepts]: Start accepts. Automaton has 176761 states and 187136 transitions. Word has length 492 [2018-10-26 21:18:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:18:03,219 INFO L481 AbstractCegarLoop]: Abstraction has 176761 states and 187136 transitions. [2018-10-26 21:18:03,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:18:03,219 INFO L276 IsEmpty]: Start isEmpty. Operand 176761 states and 187136 transitions. [2018-10-26 21:18:03,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2018-10-26 21:18:03,228 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:18:03,229 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:18:03,229 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:18:03,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:18:03,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1700244961, now seen corresponding path program 1 times [2018-10-26 21:18:03,229 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:18:03,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:18:03,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:18:03,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:18:03,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:18:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:18:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-10-26 21:18:04,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:18:04,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:18:04,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:18:04,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:18:04,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:18:04,609 INFO L87 Difference]: Start difference. First operand 176761 states and 187136 transitions. Second operand 5 states. [2018-10-26 21:18:15,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:18:15,804 INFO L93 Difference]: Finished difference Result 485132 states and 513325 transitions. [2018-10-26 21:18:15,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:18:15,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 497 [2018-10-26 21:18:15,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:18:16,182 INFO L225 Difference]: With dead ends: 485132 [2018-10-26 21:18:16,183 INFO L226 Difference]: Without dead ends: 309125 [2018-10-26 21:18:16,289 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:18:16,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309125 states. [2018-10-26 21:18:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309125 to 244451. [2018-10-26 21:18:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244451 states. [2018-10-26 21:18:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244451 states to 244451 states and 255830 transitions. [2018-10-26 21:18:19,402 INFO L78 Accepts]: Start accepts. Automaton has 244451 states and 255830 transitions. Word has length 497 [2018-10-26 21:18:19,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:18:19,402 INFO L481 AbstractCegarLoop]: Abstraction has 244451 states and 255830 transitions. [2018-10-26 21:18:19,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:18:19,402 INFO L276 IsEmpty]: Start isEmpty. Operand 244451 states and 255830 transitions. [2018-10-26 21:18:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-10-26 21:18:19,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:18:19,411 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-26 21:18:19,411 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:18:19,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:18:19,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1051512501, now seen corresponding path program 1 times [2018-10-26 21:18:19,412 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:18:19,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:18:19,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:18:19,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:18:19,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:18:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:18:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2018-10-26 21:18:19,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:18:19,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:18:19,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:18:19,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:18:19,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:18:19,834 INFO L87 Difference]: Start difference. First operand 244451 states and 255830 transitions. Second operand 4 states. Received shutdown request... [2018-10-26 21:18:30,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:18:30,896 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 21:18:30,901 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 21:18:30,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:18:30 BoogieIcfgContainer [2018-10-26 21:18:30,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:18:30,903 INFO L168 Benchmark]: Toolchain (without parser) took 231436.51 ms. Allocated memory was 1.6 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,904 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 21:18:30,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2123.77 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 628.40 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,906 INFO L168 Benchmark]: Boogie Preprocessor took 353.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,908 INFO L168 Benchmark]: RCFGBuilder took 9259.08 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -184.1 MB). Peak memory consumption was 619.2 MB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,909 INFO L168 Benchmark]: TraceAbstraction took 219066.92 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -312.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-26 21:18:30,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2123.77 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 628.40 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 812.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 353.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9259.08 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 224.4 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -184.1 MB). Peak memory consumption was 619.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219066.92 ms. Allocated memory was 2.6 GB in the beginning and 4.6 GB in the end (delta: 2.1 GB). Free memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: -312.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (244451states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (166328 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 218.9s OverallTime, 15 OverallIterations, 5 TraceHistogramMax, 189.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9456 SDtfs, 45170 SDslu, 1430 SDs, 0 SdLazy, 85920 SolverSat, 15458 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 150.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1395 GetRequests, 1329 SyntacticMatches, 12 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244451occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 142229 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 6777 NumberOfCodeBlocks, 6777 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 6758 ConstructedInterpolants, 0 QuantifiedInterpolants, 7893585 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1694 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 6980/7303 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown