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_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:05:25,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:05:25,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:05:25,315 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:05:25,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:05:25,316 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:05:25,317 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:05:25,319 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:05:25,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:05:25,322 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:05:25,323 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:05:25,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:05:25,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:05:25,325 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:05:25,326 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:05:25,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:05:25,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:05:25,330 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:05:25,332 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:05:25,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:05:25,335 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:05:25,336 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:05:25,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:05:25,339 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:05:25,339 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:05:25,340 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:05:25,341 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:05:25,342 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:05:25,342 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:05:25,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:05:25,344 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:05:25,345 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 18:05:25,347 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 18:05:25,362 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:05:25,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:05:25,363 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:05:25,363 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:05:25,364 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:05:25,364 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:05:25,364 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:05:25,365 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:05:25,365 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:05:25,365 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:05:25,365 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:05:25,365 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:05:25,366 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:05:25,366 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:05:25,366 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:05:25,366 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:05:25,366 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:05:25,367 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:05:25,367 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:05:25,367 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:05:25,367 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:05:25,367 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:05:25,368 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:05:25,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:05:25,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:05:25,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:05:25,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:05:25,444 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:05:25,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-10-23 18:05:25,513 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a756fa607/501788516f9b41f5a7a5c6342d54ac98/FLAG37540e9b1 [2018-10-23 18:05:26,317 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:05:26,318 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-10-23 18:05:26,356 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a756fa607/501788516f9b41f5a7a5c6342d54ac98/FLAG37540e9b1 [2018-10-23 18:05:26,373 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a756fa607/501788516f9b41f5a7a5c6342d54ac98 [2018-10-23 18:05:26,384 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:05:26,386 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:05:26,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:05:26,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:05:26,391 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:05:26,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:05:26" (1/1) ... [2018-10-23 18:05:26,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac5f7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:26, skipping insertion in model container [2018-10-23 18:05:26,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:05:26" (1/1) ... [2018-10-23 18:05:26,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:05:26,589 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:05:28,042 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:05:28,048 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:05:28,851 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:05:28,889 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:05:28,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28 WrapperNode [2018-10-23 18:05:28,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:05:28,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:05:28,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:05:28,893 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:05:28,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:28,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:29,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:05:29,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:05:29,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:05:29,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:05:29,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:29,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:29,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:29,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:30,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:30,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:30,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (1/1) ... [2018-10-23 18:05:30,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:05:30,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:05:30,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:05:30,531 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:05:30,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (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 18:05:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:05:30,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:05:30,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:05:46,357 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:05:46,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:05:46 BoogieIcfgContainer [2018-10-23 18:05:46,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:05:46,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:05:46,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:05:46,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:05:46,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:05:26" (1/3) ... [2018-10-23 18:05:46,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662b443f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:05:46, skipping insertion in model container [2018-10-23 18:05:46,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:05:28" (2/3) ... [2018-10-23 18:05:46,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662b443f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:05:46, skipping insertion in model container [2018-10-23 18:05:46,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:05:46" (3/3) ... [2018-10-23 18:05:46,367 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label29_false-unreach-call.c [2018-10-23 18:05:46,377 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:05:46,386 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:05:46,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:05:46,450 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:05:46,451 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:05:46,451 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:05:46,451 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:05:46,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:05:46,452 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:05:46,452 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:05:46,452 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:05:46,452 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:05:46,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 18:05:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-23 18:05:46,499 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:05:46,500 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:05:46,502 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:05:46,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:05:46,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1961166346, now seen corresponding path program 1 times [2018-10-23 18:05:46,510 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:05:46,510 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:05:46,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:46,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:05:46,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:05:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:05:46,905 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 18:05:46,909 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 18:05:46,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:05:46,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:05:46,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:05:46,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:05:46,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:05:46,937 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-23 18:06:01,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:01,194 INFO L93 Difference]: Finished difference Result 3896 states and 7286 transitions. [2018-10-23 18:06:01,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:06:01,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-23 18:06:01,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:01,247 INFO L225 Difference]: With dead ends: 3896 [2018-10-23 18:06:01,247 INFO L226 Difference]: Without dead ends: 2790 [2018-10-23 18:06:01,256 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 18:06:01,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2790 states. [2018-10-23 18:06:01,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2790 to 1945. [2018-10-23 18:06:01,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1945 states. [2018-10-23 18:06:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 3412 transitions. [2018-10-23 18:06:01,454 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 3412 transitions. Word has length 15 [2018-10-23 18:06:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:01,455 INFO L481 AbstractCegarLoop]: Abstraction has 1945 states and 3412 transitions. [2018-10-23 18:06:01,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:06:01,456 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 3412 transitions. [2018-10-23 18:06:01,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-23 18:06:01,459 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:01,460 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:06:01,461 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:01,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash 705130049, now seen corresponding path program 1 times [2018-10-23 18:06:01,462 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:01,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:01,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:01,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:01,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:02,742 WARN L179 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 18:06:03,096 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:06:03,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:03,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:06:03,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:06:03,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:06:03,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:06:03,099 INFO L87 Difference]: Start difference. First operand 1945 states and 3412 transitions. Second operand 5 states. [2018-10-23 18:06:03,300 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 18:06:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:19,501 INFO L93 Difference]: Finished difference Result 7061 states and 12475 transitions. [2018-10-23 18:06:19,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:06:19,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2018-10-23 18:06:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:19,529 INFO L225 Difference]: With dead ends: 7061 [2018-10-23 18:06:19,530 INFO L226 Difference]: Without dead ends: 5118 [2018-10-23 18:06:19,534 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:06:19,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5118 states. [2018-10-23 18:06:19,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5118 to 5117. [2018-10-23 18:06:19,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5117 states. [2018-10-23 18:06:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 7612 transitions. [2018-10-23 18:06:19,633 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 7612 transitions. Word has length 81 [2018-10-23 18:06:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:19,633 INFO L481 AbstractCegarLoop]: Abstraction has 5117 states and 7612 transitions. [2018-10-23 18:06:19,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:06:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 7612 transitions. [2018-10-23 18:06:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-10-23 18:06:19,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:19,640 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:06:19,640 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:19,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash 795908766, now seen corresponding path program 1 times [2018-10-23 18:06:19,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:19,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:19,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:19,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:19,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:06:19,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:19,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:06:19,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:06:19,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:06:19,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:06:19,810 INFO L87 Difference]: Start difference. First operand 5117 states and 7612 transitions. Second operand 3 states. [2018-10-23 18:06:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:25,694 INFO L93 Difference]: Finished difference Result 10220 states and 15517 transitions. [2018-10-23 18:06:25,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:06:25,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 141 [2018-10-23 18:06:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:25,727 INFO L225 Difference]: With dead ends: 10220 [2018-10-23 18:06:25,727 INFO L226 Difference]: Without dead ends: 5893 [2018-10-23 18:06:25,735 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 18:06:25,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2018-10-23 18:06:25,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5892. [2018-10-23 18:06:25,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5892 states. [2018-10-23 18:06:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 7437 transitions. [2018-10-23 18:06:25,852 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 7437 transitions. Word has length 141 [2018-10-23 18:06:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:25,853 INFO L481 AbstractCegarLoop]: Abstraction has 5892 states and 7437 transitions. [2018-10-23 18:06:25,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:06:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 7437 transitions. [2018-10-23 18:06:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-23 18:06:25,857 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:25,857 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:06:25,858 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:25,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:25,858 INFO L82 PathProgramCache]: Analyzing trace with hash -497336603, now seen corresponding path program 1 times [2018-10-23 18:06:25,858 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:25,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:25,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:26,193 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 18:06:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 25 proven. 66 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-23 18:06:26,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:06:26,234 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 18:06:26,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:26,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:06:26,474 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:06:26,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:06:26,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 18:06:26,504 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:06:26,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:06:26,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:06:26,505 INFO L87 Difference]: Start difference. First operand 5892 states and 7437 transitions. Second operand 5 states. [2018-10-23 18:06:41,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:41,152 INFO L93 Difference]: Finished difference Result 20501 states and 27031 transitions. [2018-10-23 18:06:41,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:06:41,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 180 [2018-10-23 18:06:41,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:41,215 INFO L225 Difference]: With dead ends: 20501 [2018-10-23 18:06:41,215 INFO L226 Difference]: Without dead ends: 15399 [2018-10-23 18:06:41,228 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 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 18:06:41,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15399 states. [2018-10-23 18:06:41,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15399 to 10627. [2018-10-23 18:06:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10627 states. [2018-10-23 18:06:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10627 states to 10627 states and 13141 transitions. [2018-10-23 18:06:41,479 INFO L78 Accepts]: Start accepts. Automaton has 10627 states and 13141 transitions. Word has length 180 [2018-10-23 18:06:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:41,480 INFO L481 AbstractCegarLoop]: Abstraction has 10627 states and 13141 transitions. [2018-10-23 18:06:41,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:06:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10627 states and 13141 transitions. [2018-10-23 18:06:41,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-23 18:06:41,486 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:41,487 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 18:06:41,487 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:41,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:41,488 INFO L82 PathProgramCache]: Analyzing trace with hash -280236202, now seen corresponding path program 1 times [2018-10-23 18:06:41,488 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:41,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:41,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:41,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:41,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:41,938 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-23 18:06:41,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:41,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:06:41,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:06:41,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:06:41,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:06:41,940 INFO L87 Difference]: Start difference. First operand 10627 states and 13141 transitions. Second operand 3 states. [2018-10-23 18:06:49,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:49,612 INFO L93 Difference]: Finished difference Result 28343 states and 35767 transitions. [2018-10-23 18:06:49,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:06:49,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2018-10-23 18:06:49,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:49,655 INFO L225 Difference]: With dead ends: 28343 [2018-10-23 18:06:49,656 INFO L226 Difference]: Without dead ends: 18506 [2018-10-23 18:06:49,670 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:06:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18506 states. [2018-10-23 18:06:49,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18506 to 18505. [2018-10-23 18:06:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18505 states. [2018-10-23 18:06:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18505 states to 18505 states and 22008 transitions. [2018-10-23 18:06:49,999 INFO L78 Accepts]: Start accepts. Automaton has 18505 states and 22008 transitions. Word has length 191 [2018-10-23 18:06:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:49,999 INFO L481 AbstractCegarLoop]: Abstraction has 18505 states and 22008 transitions. [2018-10-23 18:06:49,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:06:50,000 INFO L276 IsEmpty]: Start isEmpty. Operand 18505 states and 22008 transitions. [2018-10-23 18:06:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-23 18:06:50,003 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:50,004 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 18:06:50,004 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:50,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:50,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1522111001, now seen corresponding path program 1 times [2018-10-23 18:06:50,005 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:50,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:50,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:50,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-23 18:06:50,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:50,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:06:50,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:06:50,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:06:50,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:06:50,371 INFO L87 Difference]: Start difference. First operand 18505 states and 22008 transitions. Second operand 3 states. [2018-10-23 18:06:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:06:56,634 INFO L93 Difference]: Finished difference Result 36218 states and 43220 transitions. [2018-10-23 18:06:56,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:06:56,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2018-10-23 18:06:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:06:56,673 INFO L225 Difference]: With dead ends: 36218 [2018-10-23 18:06:56,674 INFO L226 Difference]: Without dead ends: 18503 [2018-10-23 18:06:56,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:06:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18503 states. [2018-10-23 18:06:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18503 to 18502. [2018-10-23 18:06:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18502 states. [2018-10-23 18:06:56,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18502 states to 18502 states and 21047 transitions. [2018-10-23 18:06:56,939 INFO L78 Accepts]: Start accepts. Automaton has 18502 states and 21047 transitions. Word has length 229 [2018-10-23 18:06:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:06:56,939 INFO L481 AbstractCegarLoop]: Abstraction has 18502 states and 21047 transitions. [2018-10-23 18:06:56,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:06:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 18502 states and 21047 transitions. [2018-10-23 18:06:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-23 18:06:56,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:06:56,948 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:06:56,948 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:06:56,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:06:56,949 INFO L82 PathProgramCache]: Analyzing trace with hash -14624985, now seen corresponding path program 1 times [2018-10-23 18:06:56,949 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:06:56,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:06:56,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:56,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:06:56,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:06:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:06:57,482 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-23 18:06:57,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:06:57,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:06:57,484 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:06:57,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:06:57,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:06:57,484 INFO L87 Difference]: Start difference. First operand 18502 states and 21047 transitions. Second operand 4 states. [2018-10-23 18:07:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:08,819 INFO L93 Difference]: Finished difference Result 66979 states and 76824 transitions. [2018-10-23 18:07:08,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:07:08,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 310 [2018-10-23 18:07:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:08,884 INFO L225 Difference]: With dead ends: 66979 [2018-10-23 18:07:08,884 INFO L226 Difference]: Without dead ends: 47675 [2018-10-23 18:07:08,911 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 [2018-10-23 18:07:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47675 states. [2018-10-23 18:07:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47675 to 46857. [2018-10-23 18:07:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46857 states. [2018-10-23 18:07:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46857 states to 46857 states and 51707 transitions. [2018-10-23 18:07:09,498 INFO L78 Accepts]: Start accepts. Automaton has 46857 states and 51707 transitions. Word has length 310 [2018-10-23 18:07:09,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:09,499 INFO L481 AbstractCegarLoop]: Abstraction has 46857 states and 51707 transitions. [2018-10-23 18:07:09,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:07:09,499 INFO L276 IsEmpty]: Start isEmpty. Operand 46857 states and 51707 transitions. [2018-10-23 18:07:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2018-10-23 18:07:09,511 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:09,511 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:07:09,512 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:09,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:09,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1362845449, now seen corresponding path program 1 times [2018-10-23 18:07:09,512 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:09,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:09,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:09,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:09,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-23 18:07:10,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:10,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:07:10,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:07:10,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:07:10,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:07:10,072 INFO L87 Difference]: Start difference. First operand 46857 states and 51707 transitions. Second operand 5 states. [2018-10-23 18:07:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:32,675 INFO L93 Difference]: Finished difference Result 186967 states and 206415 transitions. [2018-10-23 18:07:32,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:07:32,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 372 [2018-10-23 18:07:32,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:32,854 INFO L225 Difference]: With dead ends: 186967 [2018-10-23 18:07:32,854 INFO L226 Difference]: Without dead ends: 140900 [2018-10-23 18:07:32,905 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 18:07:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140900 states. [2018-10-23 18:07:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140900 to 128897. [2018-10-23 18:07:34,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128897 states. [2018-10-23 18:07:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128897 states to 128897 states and 140147 transitions. [2018-10-23 18:07:34,204 INFO L78 Accepts]: Start accepts. Automaton has 128897 states and 140147 transitions. Word has length 372 [2018-10-23 18:07:34,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:34,204 INFO L481 AbstractCegarLoop]: Abstraction has 128897 states and 140147 transitions. [2018-10-23 18:07:34,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:07:34,204 INFO L276 IsEmpty]: Start isEmpty. Operand 128897 states and 140147 transitions. [2018-10-23 18:07:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-10-23 18:07:34,219 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:34,220 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:07:34,220 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:34,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:34,220 INFO L82 PathProgramCache]: Analyzing trace with hash 42662170, now seen corresponding path program 1 times [2018-10-23 18:07:34,220 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:34,221 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:34,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:34,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:34,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:35,306 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-23 18:07:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-23 18:07:35,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:35,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:07:35,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:07:35,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:07:35,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:35,392 INFO L87 Difference]: Start difference. First operand 128897 states and 140147 transitions. Second operand 4 states. [2018-10-23 18:07:46,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:46,781 INFO L93 Difference]: Finished difference Result 294862 states and 320990 transitions. [2018-10-23 18:07:46,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:07:46,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 400 [2018-10-23 18:07:46,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:47,003 INFO L225 Difference]: With dead ends: 294862 [2018-10-23 18:07:47,003 INFO L226 Difference]: Without dead ends: 166755 [2018-10-23 18:07:47,088 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:47,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166755 states. [2018-10-23 18:07:49,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166755 to 164358. [2018-10-23 18:07:49,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164358 states. [2018-10-23 18:07:49,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164358 states to 164358 states and 175545 transitions. [2018-10-23 18:07:49,260 INFO L78 Accepts]: Start accepts. Automaton has 164358 states and 175545 transitions. Word has length 400 [2018-10-23 18:07:49,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:49,261 INFO L481 AbstractCegarLoop]: Abstraction has 164358 states and 175545 transitions. [2018-10-23 18:07:49,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:07:49,261 INFO L276 IsEmpty]: Start isEmpty. Operand 164358 states and 175545 transitions. [2018-10-23 18:07:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2018-10-23 18:07:49,292 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:49,292 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-23 18:07:49,292 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:49,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:49,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1917767430, now seen corresponding path program 1 times [2018-10-23 18:07:49,293 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:49,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:49,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:49,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:49,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked. [2018-10-23 18:07:49,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:49,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:07:49,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:07:49,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:07:49,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:07:49,841 INFO L87 Difference]: Start difference. First operand 164358 states and 175545 transitions. Second operand 3 states. [2018-10-23 18:07:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:07:55,123 INFO L93 Difference]: Finished difference Result 326335 states and 348424 transitions. [2018-10-23 18:07:55,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:07:55,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 498 [2018-10-23 18:07:55,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:07:55,348 INFO L225 Difference]: With dead ends: 326335 [2018-10-23 18:07:55,348 INFO L226 Difference]: Without dead ends: 162765 [2018-10-23 18:07:55,445 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:07:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162765 states. [2018-10-23 18:07:58,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162765 to 162765. [2018-10-23 18:07:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162765 states. [2018-10-23 18:07:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162765 states to 162765 states and 173651 transitions. [2018-10-23 18:07:58,254 INFO L78 Accepts]: Start accepts. Automaton has 162765 states and 173651 transitions. Word has length 498 [2018-10-23 18:07:58,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:07:58,254 INFO L481 AbstractCegarLoop]: Abstraction has 162765 states and 173651 transitions. [2018-10-23 18:07:58,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:07:58,255 INFO L276 IsEmpty]: Start isEmpty. Operand 162765 states and 173651 transitions. [2018-10-23 18:07:58,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-10-23 18:07:58,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:07:58,281 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-23 18:07:58,282 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:07:58,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:07:58,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1448449607, now seen corresponding path program 1 times [2018-10-23 18:07:58,282 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:07:58,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:07:58,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:58,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:07:58,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:07:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:07:58,691 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 562 trivial. 0 not checked. [2018-10-23 18:07:58,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:07:58,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:07:58,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:07:58,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:07:58,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:07:58,693 INFO L87 Difference]: Start difference. First operand 162765 states and 173651 transitions. Second operand 4 states. [2018-10-23 18:08:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:08:11,541 INFO L93 Difference]: Finished difference Result 349192 states and 372453 transitions. [2018-10-23 18:08:11,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:08:11,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 512 [2018-10-23 18:08:11,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:08:11,762 INFO L225 Difference]: With dead ends: 349192 [2018-10-23 18:08:11,762 INFO L226 Difference]: Without dead ends: 187217 [2018-10-23 18:08:11,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:08:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187217 states. [2018-10-23 18:08:13,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187217 to 166704. [2018-10-23 18:08:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166704 states. [2018-10-23 18:08:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166704 states to 166704 states and 176539 transitions. [2018-10-23 18:08:13,365 INFO L78 Accepts]: Start accepts. Automaton has 166704 states and 176539 transitions. Word has length 512 [2018-10-23 18:08:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:08:13,366 INFO L481 AbstractCegarLoop]: Abstraction has 166704 states and 176539 transitions. [2018-10-23 18:08:13,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:08:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand 166704 states and 176539 transitions. [2018-10-23 18:08:13,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2018-10-23 18:08:13,387 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:08:13,388 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:08:13,388 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:08:13,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:08:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash 394135499, now seen corresponding path program 1 times [2018-10-23 18:08:13,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:08:13,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:08:13,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:13,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:08:13,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:08:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:08:15,949 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 18:08:16,139 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-23 18:08:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 577 proven. 66 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-23 18:08:16,320 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:08:16,321 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 [2018-10-23 18:08:16,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:08:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:08:16,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:08:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2018-10-23 18:08:17,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:08:17,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-10-23 18:08:17,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-23 18:08:17,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-23 18:08:17,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-23 18:08:17,237 INFO L87 Difference]: Start difference. First operand 166704 states and 176539 transitions. Second operand 9 states. Received shutdown request... [2018-10-23 18:09:18,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-23 18:09:18,495 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 18:09:18,500 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 18:09:18,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:09:18 BoogieIcfgContainer [2018-10-23 18:09:18,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 18:09:18,501 INFO L168 Benchmark]: Toolchain (without parser) took 232116.42 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,502 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 18:09:18,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2503.09 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: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 881.28 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 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 83.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,505 INFO L168 Benchmark]: Boogie Preprocessor took 755.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,505 INFO L168 Benchmark]: RCFGBuilder took 15827.93 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 237.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 606.8 MB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,506 INFO L168 Benchmark]: TraceAbstraction took 212141.36 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 615.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:09:18,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2503.09 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: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 881.28 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 825.2 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 83.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 755.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15827.93 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 237.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 32.5 MB). Peak memory consumption was 606.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212141.36 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 615.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (166704states) and FLOYD_HOARE automaton (currently 18 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (368791 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 212.0s OverallTime, 12 OverallIterations, 6 TraceHistogramMax, 191.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10657 SDtfs, 38843 SDslu, 3693 SDs, 0 SdLazy, 79333 SolverSat, 17613 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 161.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 816 GetRequests, 769 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166704occurred in iteration=11, 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: 9.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 41352 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 4237 NumberOfCodeBlocks, 4237 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4223 ConstructedInterpolants, 90 QuantifiedInterpolants, 4145035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1022 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 5196/5328 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown