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/Problem13_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:15:46,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:15:46,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:15:46,418 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:15:46,419 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:15:46,422 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:15:46,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:15:46,426 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:15:46,428 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:15:46,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:15:46,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:15:46,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:15:46,435 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:15:46,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:15:46,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:15:46,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:15:46,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:15:46,452 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:15:46,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:15:46,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:15:46,461 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:15:46,462 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:15:46,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 20:15:46,465 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 20:15:46,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 20:15:46,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 20:15:46,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 20:15:46,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 20:15:46,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 20:15:46,472 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 20:15:46,473 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 20:15:46,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 20:15:46,473 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 20:15:46,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 20:15:46,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 20:15:46,477 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 20:15:46,477 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 [2018-10-23 20:15:46,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:15:46,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:15:46,511 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:15:46,511 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:15:46,512 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:15:46,513 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:15:46,513 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:15:46,513 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:15:46,513 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:15:46,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:15:46,514 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:15:46,514 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:15:46,514 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:15:46,514 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:15:46,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:15:46,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:15:46,516 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:15:46,516 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:15:46,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:15:46,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:15:46,517 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:15:46,517 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:15:46,517 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:15:46,517 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:15:46,518 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:15:46,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:15:46,518 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:15:46,518 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:15:46,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:15:46,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:15:46,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:15:46,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:15:46,589 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:15:46,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label08_true-unreach-call.c [2018-10-23 20:15:46,664 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f89bfb620/fb035906fbfc436a84bb208986b7d4fa/FLAG339363ca2 [2018-10-23 20:15:47,508 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:15:47,509 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label08_true-unreach-call.c [2018-10-23 20:15:47,540 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f89bfb620/fb035906fbfc436a84bb208986b7d4fa/FLAG339363ca2 [2018-10-23 20:15:47,556 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f89bfb620/fb035906fbfc436a84bb208986b7d4fa [2018-10-23 20:15:47,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:15:47,569 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:15:47,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:15:47,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:15:47,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:15:47,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:15:47" (1/1) ... [2018-10-23 20:15:47,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab4c919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:47, skipping insertion in model container [2018-10-23 20:15:47,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:15:47" (1/1) ... [2018-10-23 20:15:47,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:15:47,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:15:49,281 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:15:49,286 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:15:50,018 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:15:50,057 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:15:50,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50 WrapperNode [2018-10-23 20:15:50,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:15:50,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:15:50,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:15:50,060 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:15:50,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:50,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:50,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:15:50,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:15:50,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:15:50,880 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:15:50,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:50,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:50,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:50,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:51,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:51,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:51,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (1/1) ... [2018-10-23 20:15:51,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:15:51,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:15:51,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:15:51,459 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:15:51,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (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 [2018-10-23 20:15:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:15:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:15:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:16:04,533 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:16:04,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:16:04 BoogieIcfgContainer [2018-10-23 20:16:04,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:16:04,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:16:04,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:16:04,539 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:16:04,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:15:47" (1/3) ... [2018-10-23 20:16:04,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f14c55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:16:04, skipping insertion in model container [2018-10-23 20:16:04,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:15:50" (2/3) ... [2018-10-23 20:16:04,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f14c55b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:16:04, skipping insertion in model container [2018-10-23 20:16:04,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:16:04" (3/3) ... [2018-10-23 20:16:04,543 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label08_true-unreach-call.c [2018-10-23 20:16:04,553 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:16:04,570 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:16:04,588 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:16:04,634 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:16:04,635 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:16:04,635 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:16:04,636 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:16:04,636 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:16:04,636 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:16:04,636 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:16:04,636 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:16:04,636 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:16:04,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 20:16:04,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-23 20:16:04,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:16:04,694 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] [2018-10-23 20:16:04,697 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:16:04,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:16:04,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472986, now seen corresponding path program 1 times [2018-10-23 20:16:04,706 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:16:04,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:16:04,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:04,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:16:04,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:16:05,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:16:05,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:16:05,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:16:05,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:16:05,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:16:05,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:16:05,325 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 20:16:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:16:20,441 INFO L93 Difference]: Finished difference Result 3879 states and 7287 transitions. [2018-10-23 20:16:20,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:16:20,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-10-23 20:16:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:16:20,491 INFO L225 Difference]: With dead ends: 3879 [2018-10-23 20:16:20,492 INFO L226 Difference]: Without dead ends: 2773 [2018-10-23 20:16:20,501 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:16:20,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2018-10-23 20:16:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2742. [2018-10-23 20:16:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2742 states. [2018-10-23 20:16:20,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 4466 transitions. [2018-10-23 20:16:20,662 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 4466 transitions. Word has length 51 [2018-10-23 20:16:20,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:16:20,663 INFO L481 AbstractCegarLoop]: Abstraction has 2742 states and 4466 transitions. [2018-10-23 20:16:20,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:16:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 4466 transitions. [2018-10-23 20:16:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-23 20:16:20,680 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:16:20,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:16:20,681 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:16:20,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:16:20,681 INFO L82 PathProgramCache]: Analyzing trace with hash -422253107, now seen corresponding path program 1 times [2018-10-23 20:16:20,681 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:16:20,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:16:20,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:20,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:16:20,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:16:21,465 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-23 20:16:21,897 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 10 [2018-10-23 20:16:21,952 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:16:21,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:16:21,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:16:21,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:16:21,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:16:21,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:16:21,955 INFO L87 Difference]: Start difference. First operand 2742 states and 4466 transitions. Second operand 5 states. [2018-10-23 20:16:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:16:37,691 INFO L93 Difference]: Finished difference Result 7903 states and 11941 transitions. [2018-10-23 20:16:37,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:16:37,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-10-23 20:16:37,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:16:37,718 INFO L225 Difference]: With dead ends: 7903 [2018-10-23 20:16:37,718 INFO L226 Difference]: Without dead ends: 5163 [2018-10-23 20:16:37,723 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:16:37,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5163 states. [2018-10-23 20:16:37,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5163 to 4329. [2018-10-23 20:16:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4329 states. [2018-10-23 20:16:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4329 states to 4329 states and 6259 transitions. [2018-10-23 20:16:37,813 INFO L78 Accepts]: Start accepts. Automaton has 4329 states and 6259 transitions. Word has length 141 [2018-10-23 20:16:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:16:37,814 INFO L481 AbstractCegarLoop]: Abstraction has 4329 states and 6259 transitions. [2018-10-23 20:16:37,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:16:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 4329 states and 6259 transitions. [2018-10-23 20:16:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-23 20:16:37,821 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:16:37,822 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:16:37,823 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:16:37,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:16:37,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1408146749, now seen corresponding path program 1 times [2018-10-23 20:16:37,824 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:16:37,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:16:37,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:37,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:16:37,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:16:38,071 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:16:38,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:16:38,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:16:38,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:16:38,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:16:38,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:16:38,073 INFO L87 Difference]: Start difference. First operand 4329 states and 6259 transitions. Second operand 4 states. [2018-10-23 20:16:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:16:49,227 INFO L93 Difference]: Finished difference Result 15814 states and 23234 transitions. [2018-10-23 20:16:49,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:16:49,228 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-23 20:16:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:16:49,276 INFO L225 Difference]: With dead ends: 15814 [2018-10-23 20:16:49,277 INFO L226 Difference]: Without dead ends: 11487 [2018-10-23 20:16:49,283 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 [2018-10-23 20:16:49,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11487 states. [2018-10-23 20:16:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11487 to 11481. [2018-10-23 20:16:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11481 states. [2018-10-23 20:16:49,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11481 states to 11481 states and 15626 transitions. [2018-10-23 20:16:49,497 INFO L78 Accepts]: Start accepts. Automaton has 11481 states and 15626 transitions. Word has length 152 [2018-10-23 20:16:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:16:49,498 INFO L481 AbstractCegarLoop]: Abstraction has 11481 states and 15626 transitions. [2018-10-23 20:16:49,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:16:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 11481 states and 15626 transitions. [2018-10-23 20:16:49,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-23 20:16:49,503 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:16:49,503 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, 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] [2018-10-23 20:16:49,503 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:16:49,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:16:49,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1164637680, now seen corresponding path program 1 times [2018-10-23 20:16:49,504 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:16:49,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:16:49,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:49,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:16:49,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:16:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:16:49,964 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:16:50,093 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:16:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 119 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-10-23 20:16:50,398 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:16:50,398 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 [2018-10-23 20:16:50,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:16:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:16:50,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:16:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-10-23 20:16:50,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:16:50,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-23 20:16:50,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:16:50,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:16:50,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:16:50,720 INFO L87 Difference]: Start difference. First operand 11481 states and 15626 transitions. Second operand 6 states. [2018-10-23 20:17:06,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:17:06,717 INFO L93 Difference]: Finished difference Result 57631 states and 78123 transitions. [2018-10-23 20:17:06,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:17:06,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 214 [2018-10-23 20:17:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:17:06,855 INFO L225 Difference]: With dead ends: 57631 [2018-10-23 20:17:06,855 INFO L226 Difference]: Without dead ends: 46152 [2018-10-23 20:17:06,878 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2018-10-23 20:17:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46152 states. [2018-10-23 20:17:07,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46152 to 46150. [2018-10-23 20:17:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46150 states. [2018-10-23 20:17:07,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46150 states to 46150 states and 54728 transitions. [2018-10-23 20:17:07,709 INFO L78 Accepts]: Start accepts. Automaton has 46150 states and 54728 transitions. Word has length 214 [2018-10-23 20:17:07,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:17:07,709 INFO L481 AbstractCegarLoop]: Abstraction has 46150 states and 54728 transitions. [2018-10-23 20:17:07,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:17:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 46150 states and 54728 transitions. [2018-10-23 20:17:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-10-23 20:17:07,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:17:07,728 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, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:17:07,728 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:17:07,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:17:07,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1086486529, now seen corresponding path program 1 times [2018-10-23 20:17:07,729 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:17:07,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:17:07,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:07,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:07,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:08,226 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-23 20:17:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 528 proven. 9 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-10-23 20:17:08,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:17:08,719 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) [2018-10-23 20:17:08,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 20:17:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:08,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:17:09,080 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 528 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-10-23 20:17:09,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:17:09,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 20:17:09,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:17:09,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:17:09,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:17:09,105 INFO L87 Difference]: Start difference. First operand 46150 states and 54728 transitions. Second operand 5 states. [2018-10-23 20:17:21,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:17:21,962 INFO L93 Difference]: Finished difference Result 110441 states and 133773 transitions. [2018-10-23 20:17:21,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:17:21,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 411 [2018-10-23 20:17:21,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:17:22,059 INFO L225 Difference]: With dead ends: 110441 [2018-10-23 20:17:22,060 INFO L226 Difference]: Without dead ends: 65081 [2018-10-23 20:17:22,114 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 411 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:17:22,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65081 states. [2018-10-23 20:17:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65081 to 65058. [2018-10-23 20:17:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65058 states. [2018-10-23 20:17:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65058 states to 65058 states and 75080 transitions. [2018-10-23 20:17:22,900 INFO L78 Accepts]: Start accepts. Automaton has 65058 states and 75080 transitions. Word has length 411 [2018-10-23 20:17:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:17:22,901 INFO L481 AbstractCegarLoop]: Abstraction has 65058 states and 75080 transitions. [2018-10-23 20:17:22,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:17:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 65058 states and 75080 transitions. [2018-10-23 20:17:22,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-10-23 20:17:22,927 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:17:22,928 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:17:22,928 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:17:22,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:17:22,929 INFO L82 PathProgramCache]: Analyzing trace with hash -2100036450, now seen corresponding path program 1 times [2018-10-23 20:17:22,929 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:17:22,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:17:22,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:22,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:22,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:23,571 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-23 20:17:24,570 WARN L179 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:17:25,079 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 8 [2018-10-23 20:17:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 384 proven. 4 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-10-23 20:17:25,353 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:17:25,353 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 [2018-10-23 20:17:25,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:25,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:17:25,702 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-10-23 20:17:25,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:17:25,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-23 20:17:25,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:17:25,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:17:25,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:17:25,736 INFO L87 Difference]: Start difference. First operand 65058 states and 75080 transitions. Second operand 8 states. [2018-10-23 20:17:50,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:17:50,319 INFO L93 Difference]: Finished difference Result 170316 states and 196463 transitions. [2018-10-23 20:17:50,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-23 20:17:50,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 414 [2018-10-23 20:17:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:17:50,489 INFO L225 Difference]: With dead ends: 170316 [2018-10-23 20:17:50,490 INFO L226 Difference]: Without dead ends: 106048 [2018-10-23 20:17:50,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 418 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-10-23 20:17:50,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106048 states. [2018-10-23 20:17:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106048 to 98935. [2018-10-23 20:17:51,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98935 states. [2018-10-23 20:17:51,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98935 states to 98935 states and 110632 transitions. [2018-10-23 20:17:51,542 INFO L78 Accepts]: Start accepts. Automaton has 98935 states and 110632 transitions. Word has length 414 [2018-10-23 20:17:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:17:51,543 INFO L481 AbstractCegarLoop]: Abstraction has 98935 states and 110632 transitions. [2018-10-23 20:17:51,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:17:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 98935 states and 110632 transitions. [2018-10-23 20:17:51,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-10-23 20:17:51,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:17:51,567 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:17:51,568 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:17:51,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:17:51,568 INFO L82 PathProgramCache]: Analyzing trace with hash 215994102, now seen corresponding path program 1 times [2018-10-23 20:17:51,568 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:17:51,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:17:51,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:51,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:17:51,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:17:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:17:51,939 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 480 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-23 20:17:51,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:17:51,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:17:51,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:17:51,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:17:51,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:17:51,941 INFO L87 Difference]: Start difference. First operand 98935 states and 110632 transitions. Second operand 3 states. [2018-10-23 20:17:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:17:59,769 INFO L93 Difference]: Finished difference Result 197064 states and 220335 transitions. [2018-10-23 20:17:59,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:17:59,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 441 [2018-10-23 20:17:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:17:59,907 INFO L225 Difference]: With dead ends: 197064 [2018-10-23 20:17:59,907 INFO L226 Difference]: Without dead ends: 84685 [2018-10-23 20:17:59,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:18:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84685 states. [2018-10-23 20:18:00,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84685 to 83107. [2018-10-23 20:18:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83107 states. [2018-10-23 20:18:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83107 states to 83107 states and 90075 transitions. [2018-10-23 20:18:00,742 INFO L78 Accepts]: Start accepts. Automaton has 83107 states and 90075 transitions. Word has length 441 [2018-10-23 20:18:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:18:00,743 INFO L481 AbstractCegarLoop]: Abstraction has 83107 states and 90075 transitions. [2018-10-23 20:18:00,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:18:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 83107 states and 90075 transitions. [2018-10-23 20:18:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-10-23 20:18:00,761 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:18:00,762 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:18:00,762 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:18:00,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:18:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1531148240, now seen corresponding path program 1 times [2018-10-23 20:18:00,763 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:18:00,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:18:00,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:00,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:00,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 9 proven. 88 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-23 20:18:01,481 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:18:01,481 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 [2018-10-23 20:18:01,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:01,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:18:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-23 20:18:01,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:18:01,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2018-10-23 20:18:01,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:18:01,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:18:01,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:18:01,919 INFO L87 Difference]: Start difference. First operand 83107 states and 90075 transitions. Second operand 5 states. [2018-10-23 20:18:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:18:15,716 INFO L93 Difference]: Finished difference Result 238758 states and 258829 transitions. [2018-10-23 20:18:15,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:18:15,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 457 [2018-10-23 20:18:15,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:18:15,951 INFO L225 Difference]: With dead ends: 238758 [2018-10-23 20:18:15,951 INFO L226 Difference]: Without dead ends: 156441 [2018-10-23 20:18:16,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 456 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:18:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156441 states. [2018-10-23 20:18:18,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156441 to 149334. [2018-10-23 20:18:18,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149334 states. [2018-10-23 20:18:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149334 states to 149334 states and 159354 transitions. [2018-10-23 20:18:18,240 INFO L78 Accepts]: Start accepts. Automaton has 149334 states and 159354 transitions. Word has length 457 [2018-10-23 20:18:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:18:18,240 INFO L481 AbstractCegarLoop]: Abstraction has 149334 states and 159354 transitions. [2018-10-23 20:18:18,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:18:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 149334 states and 159354 transitions. [2018-10-23 20:18:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2018-10-23 20:18:18,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:18:18,254 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-23 20:18:18,254 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:18:18,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:18:18,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1337138215, now seen corresponding path program 1 times [2018-10-23 20:18:18,254 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:18:18,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:18:18,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:18,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:18,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:18,687 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-10-23 20:18:18,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:18:18,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:18:18,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:18:18,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:18:18,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:18:18,688 INFO L87 Difference]: Start difference. First operand 149334 states and 159354 transitions. Second operand 5 states. [2018-10-23 20:18:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:18:41,164 INFO L93 Difference]: Finished difference Result 459710 states and 491165 transitions. [2018-10-23 20:18:41,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:18:41,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 502 [2018-10-23 20:18:41,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:18:41,556 INFO L225 Difference]: With dead ends: 459710 [2018-10-23 20:18:41,557 INFO L226 Difference]: Without dead ends: 309588 [2018-10-23 20:18:41,667 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 [2018-10-23 20:18:41,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309588 states. [2018-10-23 20:18:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309588 to 285736. [2018-10-23 20:18:45,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285736 states. [2018-10-23 20:18:45,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285736 states to 285736 states and 303322 transitions. [2018-10-23 20:18:45,385 INFO L78 Accepts]: Start accepts. Automaton has 285736 states and 303322 transitions. Word has length 502 [2018-10-23 20:18:45,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:18:45,385 INFO L481 AbstractCegarLoop]: Abstraction has 285736 states and 303322 transitions. [2018-10-23 20:18:45,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:18:45,386 INFO L276 IsEmpty]: Start isEmpty. Operand 285736 states and 303322 transitions. [2018-10-23 20:18:45,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-10-23 20:18:45,404 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:18:45,405 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:18:45,405 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:18:45,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:18:45,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1085181497, now seen corresponding path program 1 times [2018-10-23 20:18:45,406 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:18:45,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:18:45,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:45,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:18:45,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:18:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:18:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-10-23 20:18:45,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:18:45,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:18:45,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:18:45,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:18:45,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:18:45,907 INFO L87 Difference]: Start difference. First operand 285736 states and 303322 transitions. Second operand 4 states. [2018-10-23 20:18:58,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:18:58,264 INFO L93 Difference]: Finished difference Result 566698 states and 601967 transitions. [2018-10-23 20:18:58,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:18:58,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 539 [2018-10-23 20:18:58,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:18:58,595 INFO L225 Difference]: With dead ends: 566698 [2018-10-23 20:18:58,596 INFO L226 Difference]: Without dead ends: 281752 [2018-10-23 20:18:58,691 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:18:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281752 states. [2018-10-23 20:19:08,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281752 to 278598. [2018-10-23 20:19:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278598 states. [2018-10-23 20:19:08,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278598 states to 278598 states and 291026 transitions. [2018-10-23 20:19:08,604 INFO L78 Accepts]: Start accepts. Automaton has 278598 states and 291026 transitions. Word has length 539 [2018-10-23 20:19:08,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:19:08,605 INFO L481 AbstractCegarLoop]: Abstraction has 278598 states and 291026 transitions. [2018-10-23 20:19:08,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:19:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 278598 states and 291026 transitions. [2018-10-23 20:19:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2018-10-23 20:19:08,655 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:19:08,656 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:19:08,656 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:19:08,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:19:08,657 INFO L82 PathProgramCache]: Analyzing trace with hash 794298383, now seen corresponding path program 1 times [2018-10-23 20:19:08,657 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:19:08,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:19:08,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:08,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:19:08,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:19:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:19:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2018-10-23 20:19:10,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:19:10,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:19:10,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:19:10,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:19:10,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:19:10,089 INFO L87 Difference]: Start difference. First operand 278598 states and 291026 transitions. Second operand 4 states. [2018-10-23 20:19:29,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:19:29,368 INFO L93 Difference]: Finished difference Result 640872 states and 670258 transitions. [2018-10-23 20:19:29,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:19:29,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 794 [2018-10-23 20:19:29,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:19:29,784 INFO L225 Difference]: With dead ends: 640872 [2018-10-23 20:19:29,784 INFO L226 Difference]: Without dead ends: 361486 [2018-10-23 20:19:29,928 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 [2018-10-23 20:19:30,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361486 states. Received shutdown request... [2018-10-23 20:19:33,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361486 to 323522. [2018-10-23 20:19:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323522 states. [2018-10-23 20:19:33,575 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:19:33,579 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:19:33,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:19:33 BoogieIcfgContainer [2018-10-23 20:19:33,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:19:33,580 INFO L168 Benchmark]: Toolchain (without parser) took 226012.63 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,581 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:19:33,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2486.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 820.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 814.2 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 73.1 MB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,584 INFO L168 Benchmark]: Boogie Preprocessor took 579.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,584 INFO L168 Benchmark]: RCFGBuilder took 13075.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 244.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 593.8 MB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,585 INFO L168 Benchmark]: TraceAbstraction took 209044.48 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -405.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-10-23 20:19:33,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2486.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 820.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 814.2 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 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 579.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 73.5 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13075.22 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 244.3 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 593.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209044.48 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -405.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 162]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 162). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 208.9s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 173.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10904 SDtfs, 37524 SDslu, 4030 SDs, 0 SdLazy, 73077 SolverSat, 15999 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 140.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1557 GetRequests, 1510 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285736occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 23.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 43700 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 5612 NumberOfCodeBlocks, 5612 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 5597 ConstructedInterpolants, 0 QuantifiedInterpolants, 6081634 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1981 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 5699/5804 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown