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/Problem18_label33_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:38:20,478 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:38:20,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:38:20,493 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:38:20,493 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:38:20,494 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:38:20,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:38:20,497 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:38:20,499 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:38:20,500 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:38:20,501 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:38:20,501 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:38:20,502 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:38:20,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:38:20,505 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:38:20,506 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:38:20,507 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:38:20,509 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:38:20,511 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:38:20,512 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:38:20,513 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:38:20,515 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:38:20,517 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:38:20,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:38:20,518 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:38:20,519 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:38:20,520 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:38:20,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:38:20,521 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:38:20,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:38:20,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:38:20,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:38:20,526 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:38:20,553 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:38:20,554 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:38:20,554 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:38:20,555 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:38:20,558 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:38:20,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:38:20,559 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:38:20,559 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:38:20,559 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:38:20,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:38:20,560 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:38:20,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:38:20,561 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:38:20,561 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:38:20,561 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:38:20,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:38:20,562 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:38:20,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:38:20,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:38:20,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:38:20,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:38:20,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:38:20,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:38:20,564 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:38:20,565 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:38:20,565 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:38:20,565 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:38:20,565 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:38:20,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:38:20,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:38:20,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:38:20,649 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:38:20,649 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:38:20,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label33_false-unreach-call.c [2018-10-24 14:38:20,718 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82b9f9e4c/b4c15e541fa14e49b1a4ff459c759494/FLAGa7334e42a [2018-10-24 14:38:21,416 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:38:21,417 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label33_false-unreach-call.c [2018-10-24 14:38:21,447 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82b9f9e4c/b4c15e541fa14e49b1a4ff459c759494/FLAGa7334e42a [2018-10-24 14:38:21,464 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/82b9f9e4c/b4c15e541fa14e49b1a4ff459c759494 [2018-10-24 14:38:21,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:38:21,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:38:21,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:38:21,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:38:21,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:38:21,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:38:21" (1/1) ... [2018-10-24 14:38:21,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36832d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:21, skipping insertion in model container [2018-10-24 14:38:21,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:38:21" (1/1) ... [2018-10-24 14:38:21,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:38:21,636 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:38:22,734 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:38:22,739 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:38:23,199 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:38:23,225 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:38:23,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23 WrapperNode [2018-10-24 14:38:23,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:38:23,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:38:23,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:38:23,227 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:38:23,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:38:23,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:38:23,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:38:23,783 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:38:23,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:23,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:24,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... [2018-10-24 14:38:24,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:38:24,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:38:24,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:38:24,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:38:24,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:38:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:38:24,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:38:24,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:38:33,075 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:38:33,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:38:33 BoogieIcfgContainer [2018-10-24 14:38:33,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:38:33,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:38:33,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:38:33,084 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:38:33,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:38:21" (1/3) ... [2018-10-24 14:38:33,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6171992d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:38:33, skipping insertion in model container [2018-10-24 14:38:33,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:38:23" (2/3) ... [2018-10-24 14:38:33,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6171992d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:38:33, skipping insertion in model container [2018-10-24 14:38:33,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:38:33" (3/3) ... [2018-10-24 14:38:33,089 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label33_false-unreach-call.c [2018-10-24 14:38:33,099 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:38:33,110 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:38:33,124 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:38:33,172 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:38:33,173 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:38:33,173 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:38:33,173 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:38:33,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:38:33,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:38:33,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:38:33,174 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:38:33,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:38:33,213 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-24 14:38:33,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 14:38:33,221 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:33,222 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] [2018-10-24 14:38:33,224 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:33,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:33,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1155896462, now seen corresponding path program 1 times [2018-10-24 14:38:33,234 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:33,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:33,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:33,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:33,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:38:33,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:33,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:38:33,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:33,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:33,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:33,649 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-10-24 14:38:44,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:44,687 INFO L93 Difference]: Finished difference Result 2918 states and 5666 transitions. [2018-10-24 14:38:44,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:38:44,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-10-24 14:38:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:44,739 INFO L225 Difference]: With dead ends: 2918 [2018-10-24 14:38:44,741 INFO L226 Difference]: Without dead ends: 2153 [2018-10-24 14:38:44,757 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 [2018-10-24 14:38:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2018-10-24 14:38:44,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 2153. [2018-10-24 14:38:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2153 states. [2018-10-24 14:38:44,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 3448 transitions. [2018-10-24 14:38:44,940 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 3448 transitions. Word has length 24 [2018-10-24 14:38:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:44,941 INFO L481 AbstractCegarLoop]: Abstraction has 2153 states and 3448 transitions. [2018-10-24 14:38:44,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:38:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 3448 transitions. [2018-10-24 14:38:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-10-24 14:38:44,945 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:44,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:38:44,946 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:44,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:44,946 INFO L82 PathProgramCache]: Analyzing trace with hash -480020766, now seen corresponding path program 1 times [2018-10-24 14:38:44,946 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:44,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:44,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:44,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:44,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:38:45,264 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:45,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:38:45,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:38:45,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:38:45,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:38:45,267 INFO L87 Difference]: Start difference. First operand 2153 states and 3448 transitions. Second operand 4 states. [2018-10-24 14:38:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:38:53,148 INFO L93 Difference]: Finished difference Result 6377 states and 10263 transitions. [2018-10-24 14:38:53,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:38:53,149 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2018-10-24 14:38:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:38:53,172 INFO L225 Difference]: With dead ends: 6377 [2018-10-24 14:38:53,173 INFO L226 Difference]: Without dead ends: 4226 [2018-10-24 14:38:53,178 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 [2018-10-24 14:38:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4226 states. [2018-10-24 14:38:53,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4226 to 4226. [2018-10-24 14:38:53,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4226 states. [2018-10-24 14:38:53,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4226 states to 4226 states and 5833 transitions. [2018-10-24 14:38:53,264 INFO L78 Accepts]: Start accepts. Automaton has 4226 states and 5833 transitions. Word has length 90 [2018-10-24 14:38:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:38:53,265 INFO L481 AbstractCegarLoop]: Abstraction has 4226 states and 5833 transitions. [2018-10-24 14:38:53,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:38:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 4226 states and 5833 transitions. [2018-10-24 14:38:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-24 14:38:53,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:38:53,272 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:38:53,272 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:38:53,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:38:53,272 INFO L82 PathProgramCache]: Analyzing trace with hash -129199766, now seen corresponding path program 1 times [2018-10-24 14:38:53,273 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:38:53,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:38:53,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:53,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:38:53,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:38:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:38:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-24 14:38:53,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:38:53,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:38:53,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:38:53,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:38:53,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:38:53,891 INFO L87 Difference]: Start difference. First operand 4226 states and 5833 transitions. Second operand 5 states. [2018-10-24 14:39:03,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:03,109 INFO L93 Difference]: Finished difference Result 15360 states and 20468 transitions. [2018-10-24 14:39:03,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:39:03,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2018-10-24 14:39:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:03,160 INFO L225 Difference]: With dead ends: 15360 [2018-10-24 14:39:03,160 INFO L226 Difference]: Without dead ends: 11136 [2018-10-24 14:39:03,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:39:03,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11136 states. [2018-10-24 14:39:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11136 to 10445. [2018-10-24 14:39:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10445 states. [2018-10-24 14:39:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10445 states to 10445 states and 12444 transitions. [2018-10-24 14:39:03,508 INFO L78 Accepts]: Start accepts. Automaton has 10445 states and 12444 transitions. Word has length 209 [2018-10-24 14:39:03,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:03,508 INFO L481 AbstractCegarLoop]: Abstraction has 10445 states and 12444 transitions. [2018-10-24 14:39:03,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:39:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 10445 states and 12444 transitions. [2018-10-24 14:39:03,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-10-24 14:39:03,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:03,525 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:03,525 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:03,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:03,526 INFO L82 PathProgramCache]: Analyzing trace with hash -862455166, now seen corresponding path program 1 times [2018-10-24 14:39:03,528 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:03,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:03,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:03,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:03,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:04,178 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-10-24 14:39:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 274 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-24 14:39:04,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:39:04,375 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:39:04,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:04,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:39:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-10-24 14:39:04,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:39:04,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 14:39:04,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:39:04,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:39:04,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:39:04,812 INFO L87 Difference]: Start difference. First operand 10445 states and 12444 transitions. Second operand 6 states. [2018-10-24 14:39:16,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:16,213 INFO L93 Difference]: Finished difference Result 31269 states and 37248 transitions. [2018-10-24 14:39:16,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:39:16,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 392 [2018-10-24 14:39:16,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:16,274 INFO L225 Difference]: With dead ends: 31269 [2018-10-24 14:39:16,274 INFO L226 Difference]: Without dead ends: 18750 [2018-10-24 14:39:16,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:39:16,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18750 states. [2018-10-24 14:39:16,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18750 to 13883. [2018-10-24 14:39:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13883 states. [2018-10-24 14:39:16,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13883 states to 13883 states and 15539 transitions. [2018-10-24 14:39:16,581 INFO L78 Accepts]: Start accepts. Automaton has 13883 states and 15539 transitions. Word has length 392 [2018-10-24 14:39:16,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:16,582 INFO L481 AbstractCegarLoop]: Abstraction has 13883 states and 15539 transitions. [2018-10-24 14:39:16,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:39:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 13883 states and 15539 transitions. [2018-10-24 14:39:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2018-10-24 14:39:16,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:16,591 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:16,591 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:16,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:16,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1216932121, now seen corresponding path program 1 times [2018-10-24 14:39:16,592 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:16,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:16,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:16,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:16,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:16,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 14:39:17,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:17,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:17,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:17,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:17,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:17,151 INFO L87 Difference]: Start difference. First operand 13883 states and 15539 transitions. Second operand 4 states. [2018-10-24 14:39:23,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:23,981 INFO L93 Difference]: Finished difference Result 31925 states and 36879 transitions. [2018-10-24 14:39:23,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:23,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 397 [2018-10-24 14:39:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:24,017 INFO L225 Difference]: With dead ends: 31925 [2018-10-24 14:39:24,018 INFO L226 Difference]: Without dead ends: 18044 [2018-10-24 14:39:24,035 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:24,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18044 states. [2018-10-24 14:39:24,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18044 to 15956. [2018-10-24 14:39:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15956 states. [2018-10-24 14:39:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15956 states to 15956 states and 17936 transitions. [2018-10-24 14:39:24,322 INFO L78 Accepts]: Start accepts. Automaton has 15956 states and 17936 transitions. Word has length 397 [2018-10-24 14:39:24,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:24,323 INFO L481 AbstractCegarLoop]: Abstraction has 15956 states and 17936 transitions. [2018-10-24 14:39:24,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:24,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15956 states and 17936 transitions. [2018-10-24 14:39:24,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2018-10-24 14:39:24,334 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:24,334 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:24,335 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:24,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:24,335 INFO L82 PathProgramCache]: Analyzing trace with hash -2066230767, now seen corresponding path program 1 times [2018-10-24 14:39:24,335 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:24,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:24,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:24,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:24,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-10-24 14:39:24,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:24,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:24,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:24,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:24,907 INFO L87 Difference]: Start difference. First operand 15956 states and 17936 transitions. Second operand 4 states. [2018-10-24 14:39:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:31,235 INFO L93 Difference]: Finished difference Result 48494 states and 55980 transitions. [2018-10-24 14:39:31,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:31,235 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 491 [2018-10-24 14:39:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:31,282 INFO L225 Difference]: With dead ends: 48494 [2018-10-24 14:39:31,283 INFO L226 Difference]: Without dead ends: 29066 [2018-10-24 14:39:31,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29066 states. [2018-10-24 14:39:31,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29066 to 29066. [2018-10-24 14:39:31,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29066 states. [2018-10-24 14:39:31,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29066 states to 29066 states and 31982 transitions. [2018-10-24 14:39:31,690 INFO L78 Accepts]: Start accepts. Automaton has 29066 states and 31982 transitions. Word has length 491 [2018-10-24 14:39:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:31,691 INFO L481 AbstractCegarLoop]: Abstraction has 29066 states and 31982 transitions. [2018-10-24 14:39:31,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:31,691 INFO L276 IsEmpty]: Start isEmpty. Operand 29066 states and 31982 transitions. [2018-10-24 14:39:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-10-24 14:39:31,712 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:31,714 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:31,715 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:31,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:31,715 INFO L82 PathProgramCache]: Analyzing trace with hash 278256215, now seen corresponding path program 1 times [2018-10-24 14:39:31,715 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:31,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:31,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:31,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:31,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:32,415 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-24 14:39:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-24 14:39:32,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:32,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:32,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:32,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:32,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:32,642 INFO L87 Difference]: Start difference. First operand 29066 states and 31982 transitions. Second operand 4 states. [2018-10-24 14:39:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:39,355 INFO L93 Difference]: Finished difference Result 101663 states and 112527 transitions. [2018-10-24 14:39:39,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:39,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 624 [2018-10-24 14:39:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:39,477 INFO L225 Difference]: With dead ends: 101663 [2018-10-24 14:39:39,477 INFO L226 Difference]: Without dead ends: 72599 [2018-10-24 14:39:39,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72599 states. [2018-10-24 14:39:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72599 to 70526. [2018-10-24 14:39:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70526 states. [2018-10-24 14:39:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70526 states to 70526 states and 76349 transitions. [2018-10-24 14:39:40,349 INFO L78 Accepts]: Start accepts. Automaton has 70526 states and 76349 transitions. Word has length 624 [2018-10-24 14:39:40,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:40,350 INFO L481 AbstractCegarLoop]: Abstraction has 70526 states and 76349 transitions. [2018-10-24 14:39:40,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 70526 states and 76349 transitions. [2018-10-24 14:39:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2018-10-24 14:39:40,393 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:40,393 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:40,394 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:40,394 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:40,394 INFO L82 PathProgramCache]: Analyzing trace with hash -184987481, now seen corresponding path program 1 times [2018-10-24 14:39:40,395 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:40,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:40,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:40,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:40,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:41,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2018-10-24 14:39:41,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:41,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:39:41,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:39:41,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:39:41,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:39:41,897 INFO L87 Difference]: Start difference. First operand 70526 states and 76349 transitions. Second operand 3 states. [2018-10-24 14:39:45,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:45,628 INFO L93 Difference]: Finished difference Result 141050 states and 152696 transitions. [2018-10-24 14:39:45,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:39:45,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 839 [2018-10-24 14:39:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:45,704 INFO L225 Difference]: With dead ends: 141050 [2018-10-24 14:39:45,704 INFO L226 Difference]: Without dead ends: 70526 [2018-10-24 14:39:45,752 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 [2018-10-24 14:39:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70526 states. [2018-10-24 14:39:46,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70526 to 70526. [2018-10-24 14:39:46,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70526 states. [2018-10-24 14:39:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70526 states to 70526 states and 75156 transitions. [2018-10-24 14:39:46,529 INFO L78 Accepts]: Start accepts. Automaton has 70526 states and 75156 transitions. Word has length 839 [2018-10-24 14:39:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:46,531 INFO L481 AbstractCegarLoop]: Abstraction has 70526 states and 75156 transitions. [2018-10-24 14:39:46,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:39:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 70526 states and 75156 transitions. [2018-10-24 14:39:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1226 [2018-10-24 14:39:46,666 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:46,667 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:46,667 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:46,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:46,668 INFO L82 PathProgramCache]: Analyzing trace with hash -922708106, now seen corresponding path program 1 times [2018-10-24 14:39:46,668 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:46,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:46,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:46,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:46,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:48,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2018-10-24 14:39:48,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:48,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:48,266 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:48,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:48,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:48,267 INFO L87 Difference]: Start difference. First operand 70526 states and 75156 transitions. Second operand 4 states. [2018-10-24 14:39:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:39:53,699 INFO L93 Difference]: Finished difference Result 155561 states and 165849 transitions. [2018-10-24 14:39:53,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:39:53,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1225 [2018-10-24 14:39:53,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:39:53,779 INFO L225 Difference]: With dead ends: 155561 [2018-10-24 14:39:53,780 INFO L226 Difference]: Without dead ends: 85037 [2018-10-24 14:39:53,804 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:53,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85037 states. [2018-10-24 14:39:54,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85037 to 85037. [2018-10-24 14:39:54,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85037 states. [2018-10-24 14:39:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85037 states to 85037 states and 89716 transitions. [2018-10-24 14:39:54,431 INFO L78 Accepts]: Start accepts. Automaton has 85037 states and 89716 transitions. Word has length 1225 [2018-10-24 14:39:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:39:54,432 INFO L481 AbstractCegarLoop]: Abstraction has 85037 states and 89716 transitions. [2018-10-24 14:39:54,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:39:54,432 INFO L276 IsEmpty]: Start isEmpty. Operand 85037 states and 89716 transitions. [2018-10-24 14:39:54,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1778 [2018-10-24 14:39:54,510 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:39:54,512 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:39:54,512 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:39:54,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:39:54,513 INFO L82 PathProgramCache]: Analyzing trace with hash -422778624, now seen corresponding path program 1 times [2018-10-24 14:39:54,513 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:39:54,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:39:54,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:54,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:39:54,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:39:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:39:58,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 1812 proven. 0 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2018-10-24 14:39:58,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:39:58,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:39:58,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:39:58,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:39:58,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:39:58,047 INFO L87 Difference]: Start difference. First operand 85037 states and 89716 transitions. Second operand 4 states. [2018-10-24 14:40:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:40:03,466 INFO L93 Difference]: Finished difference Result 191493 states and 202166 transitions. [2018-10-24 14:40:03,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:40:03,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1777 [2018-10-24 14:40:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:40:03,575 INFO L225 Difference]: With dead ends: 191493 [2018-10-24 14:40:03,575 INFO L226 Difference]: Without dead ends: 107149 [2018-10-24 14:40:03,622 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:40:03,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107149 states. [2018-10-24 14:40:04,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107149 to 106458. [2018-10-24 14:40:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106458 states. [2018-10-24 14:40:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106458 states to 106458 states and 111319 transitions. [2018-10-24 14:40:04,478 INFO L78 Accepts]: Start accepts. Automaton has 106458 states and 111319 transitions. Word has length 1777 [2018-10-24 14:40:04,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:40:04,479 INFO L481 AbstractCegarLoop]: Abstraction has 106458 states and 111319 transitions. [2018-10-24 14:40:04,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:40:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 106458 states and 111319 transitions. [2018-10-24 14:40:04,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1816 [2018-10-24 14:40:04,557 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:40:04,558 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:40:04,558 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:40:04,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:40:04,559 INFO L82 PathProgramCache]: Analyzing trace with hash -2068213903, now seen corresponding path program 1 times [2018-10-24 14:40:04,559 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:40:04,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:40:04,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:04,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:04,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 1427 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2018-10-24 14:40:08,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:40:08,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:40:08,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:40:08,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:40:08,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:40:08,254 INFO L87 Difference]: Start difference. First operand 106458 states and 111319 transitions. Second operand 4 states. [2018-10-24 14:40:13,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:40:13,621 INFO L93 Difference]: Finished difference Result 235026 states and 246148 transitions. [2018-10-24 14:40:13,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:40:13,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1815 [2018-10-24 14:40:13,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:40:13,758 INFO L225 Difference]: With dead ends: 235026 [2018-10-24 14:40:13,758 INFO L226 Difference]: Without dead ends: 129261 [2018-10-24 14:40:13,819 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:40:13,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129261 states. [2018-10-24 14:40:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129261 to 125806. [2018-10-24 14:40:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125806 states. [2018-10-24 14:40:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125806 states to 125806 states and 131152 transitions. [2018-10-24 14:40:14,908 INFO L78 Accepts]: Start accepts. Automaton has 125806 states and 131152 transitions. Word has length 1815 [2018-10-24 14:40:14,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:40:14,909 INFO L481 AbstractCegarLoop]: Abstraction has 125806 states and 131152 transitions. [2018-10-24 14:40:14,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:40:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 125806 states and 131152 transitions. [2018-10-24 14:40:14,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1948 [2018-10-24 14:40:14,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:40:14,981 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:40:14,981 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:40:14,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:40:14,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1939597431, now seen corresponding path program 1 times [2018-10-24 14:40:14,982 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:40:14,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:40:14,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:14,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:14,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3873 backedges. 2116 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2018-10-24 14:40:18,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:40:18,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:40:18,881 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:40:18,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:40:18,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:40:18,882 INFO L87 Difference]: Start difference. First operand 125806 states and 131152 transitions. Second operand 4 states. [2018-10-24 14:40:23,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:40:23,529 INFO L93 Difference]: Finished difference Result 248843 states and 259514 transitions. [2018-10-24 14:40:23,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:40:23,529 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1947 [2018-10-24 14:40:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:40:23,659 INFO L225 Difference]: With dead ends: 248843 [2018-10-24 14:40:23,660 INFO L226 Difference]: Without dead ends: 111274 [2018-10-24 14:40:23,725 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:40:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111274 states. [2018-10-24 14:40:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111274 to 109892. [2018-10-24 14:40:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109892 states. [2018-10-24 14:40:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109892 states to 109892 states and 112879 transitions. [2018-10-24 14:40:25,188 INFO L78 Accepts]: Start accepts. Automaton has 109892 states and 112879 transitions. Word has length 1947 [2018-10-24 14:40:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:40:25,190 INFO L481 AbstractCegarLoop]: Abstraction has 109892 states and 112879 transitions. [2018-10-24 14:40:25,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:40:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 109892 states and 112879 transitions. [2018-10-24 14:40:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1958 [2018-10-24 14:40:25,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:40:25,254 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:40:25,254 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:40:25,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:40:25,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2079655620, now seen corresponding path program 1 times [2018-10-24 14:40:25,255 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:40:25,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:40:25,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:25,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:25,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 2814 proven. 499 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-10-24 14:40:32,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:40:32,438 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:40:32,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:40:32,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:40:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3821 backedges. 1569 proven. 0 refuted. 0 times theorem prover too weak. 2252 trivial. 0 not checked. [2018-10-24 14:40:34,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:40:34,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 13 [2018-10-24 14:40:34,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 14:40:34,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 14:40:34,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-10-24 14:40:34,652 INFO L87 Difference]: Start difference. First operand 109892 states and 112879 transitions. Second operand 13 states. [2018-10-24 14:40:56,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:40:56,810 INFO L93 Difference]: Finished difference Result 225327 states and 231546 transitions. [2018-10-24 14:40:56,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-24 14:40:56,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1957 [2018-10-24 14:40:56,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:40:56,917 INFO L225 Difference]: With dead ends: 225327 [2018-10-24 14:40:56,917 INFO L226 Difference]: Without dead ends: 114052 [2018-10-24 14:40:56,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2000 GetRequests, 1971 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2018-10-24 14:40:57,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114052 states. [2018-10-24 14:40:57,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114052 to 108503. [2018-10-24 14:40:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108503 states. [2018-10-24 14:40:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108503 states to 108503 states and 110722 transitions. [2018-10-24 14:40:57,900 INFO L78 Accepts]: Start accepts. Automaton has 108503 states and 110722 transitions. Word has length 1957 [2018-10-24 14:40:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:40:57,901 INFO L481 AbstractCegarLoop]: Abstraction has 108503 states and 110722 transitions. [2018-10-24 14:40:57,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 14:40:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 108503 states and 110722 transitions. [2018-10-24 14:40:57,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2224 [2018-10-24 14:40:57,980 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:40:57,981 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:40:57,982 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:40:57,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:40:57,982 INFO L82 PathProgramCache]: Analyzing trace with hash -749648741, now seen corresponding path program 1 times [2018-10-24 14:40:57,983 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:40:57,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:40:57,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:57,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:40:57,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:40:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:03,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4732 backedges. 1750 proven. 0 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2018-10-24 14:41:03,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:41:03,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 14:41:03,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:41:03,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:41:03,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:41:03,486 INFO L87 Difference]: Start difference. First operand 108503 states and 110722 transitions. Second operand 7 states. [2018-10-24 14:41:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:41:11,689 INFO L93 Difference]: Finished difference Result 360860 states and 368426 transitions. [2018-10-24 14:41:11,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 14:41:11,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2223 [2018-10-24 14:41:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:41:11,953 INFO L225 Difference]: With dead ends: 360860 [2018-10-24 14:41:11,953 INFO L226 Difference]: Without dead ends: 253050 [2018-10-24 14:41:12,028 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2018-10-24 14:41:12,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253050 states. [2018-10-24 14:41:13,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253050 to 108503. [2018-10-24 14:41:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108503 states. [2018-10-24 14:41:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108503 states to 108503 states and 110695 transitions. [2018-10-24 14:41:13,691 INFO L78 Accepts]: Start accepts. Automaton has 108503 states and 110695 transitions. Word has length 2223 [2018-10-24 14:41:13,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:41:13,692 INFO L481 AbstractCegarLoop]: Abstraction has 108503 states and 110695 transitions. [2018-10-24 14:41:13,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:41:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 108503 states and 110695 transitions. [2018-10-24 14:41:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2241 [2018-10-24 14:41:13,770 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:41:13,772 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:41:13,772 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:41:13,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:41:13,773 INFO L82 PathProgramCache]: Analyzing trace with hash 970703154, now seen corresponding path program 1 times [2018-10-24 14:41:13,773 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:41:13,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:41:13,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:13,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:41:13,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:17,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4726 backedges. 2848 proven. 0 refuted. 0 times theorem prover too weak. 1878 trivial. 0 not checked. [2018-10-24 14:41:17,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:41:17,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:41:17,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:41:17,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:41:17,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:41:17,140 INFO L87 Difference]: Start difference. First operand 108503 states and 110695 transitions. Second operand 4 states. [2018-10-24 14:41:22,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:41:22,269 INFO L93 Difference]: Finished difference Result 218385 states and 222847 transitions. [2018-10-24 14:41:22,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:41:22,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2240 [2018-10-24 14:41:22,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:41:22,384 INFO L225 Difference]: With dead ends: 218385 [2018-10-24 14:41:22,384 INFO L226 Difference]: Without dead ends: 109192 [2018-10-24 14:41:22,442 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 [2018-10-24 14:41:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109192 states. [2018-10-24 14:41:23,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109192 to 106428. [2018-10-24 14:41:23,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106428 states. [2018-10-24 14:41:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106428 states to 106428 states and 108294 transitions. [2018-10-24 14:41:23,372 INFO L78 Accepts]: Start accepts. Automaton has 106428 states and 108294 transitions. Word has length 2240 [2018-10-24 14:41:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:41:23,373 INFO L481 AbstractCegarLoop]: Abstraction has 106428 states and 108294 transitions. [2018-10-24 14:41:23,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:41:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 106428 states and 108294 transitions. [2018-10-24 14:41:23,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2245 [2018-10-24 14:41:23,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:41:23,449 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:41:23,449 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:41:23,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:41:23,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1888473982, now seen corresponding path program 1 times [2018-10-24 14:41:23,450 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:41:23,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:41:23,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:23,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:41:23,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4498 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 4319 trivial. 0 not checked. [2018-10-24 14:41:26,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:41:26,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:41:26,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:41:26,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:41:26,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:41:26,589 INFO L87 Difference]: Start difference. First operand 106428 states and 108294 transitions. Second operand 4 states. [2018-10-24 14:41:31,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:41:31,237 INFO L93 Difference]: Finished difference Result 214234 states and 218015 transitions. [2018-10-24 14:41:31,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:41:31,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2244 [2018-10-24 14:41:31,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:41:31,343 INFO L225 Difference]: With dead ends: 214234 [2018-10-24 14:41:31,344 INFO L226 Difference]: Without dead ends: 106423 [2018-10-24 14:41:31,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:41:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106423 states. [2018-10-24 14:41:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106423 to 100895. [2018-10-24 14:41:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100895 states. [2018-10-24 14:41:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100895 states to 100895 states and 102441 transitions. [2018-10-24 14:41:32,350 INFO L78 Accepts]: Start accepts. Automaton has 100895 states and 102441 transitions. Word has length 2244 [2018-10-24 14:41:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:41:32,351 INFO L481 AbstractCegarLoop]: Abstraction has 100895 states and 102441 transitions. [2018-10-24 14:41:32,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:41:32,351 INFO L276 IsEmpty]: Start isEmpty. Operand 100895 states and 102441 transitions. [2018-10-24 14:41:32,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2605 [2018-10-24 14:41:32,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:41:32,445 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:41:32,445 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:41:32,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:41:32,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1954767418, now seen corresponding path program 1 times [2018-10-24 14:41:32,446 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:41:32,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:41:32,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:32,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:41:32,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7053 backedges. 2285 proven. 0 refuted. 0 times theorem prover too weak. 4768 trivial. 0 not checked. [2018-10-24 14:41:38,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:41:38,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:41:38,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:41:38,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:41:38,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:41:38,895 INFO L87 Difference]: Start difference. First operand 100895 states and 102441 transitions. Second operand 3 states. [2018-10-24 14:41:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:41:41,956 INFO L93 Difference]: Finished difference Result 207316 states and 210563 transitions. [2018-10-24 14:41:41,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:41:41,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2604 [2018-10-24 14:41:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:41:42,060 INFO L225 Difference]: With dead ends: 207316 [2018-10-24 14:41:42,060 INFO L226 Difference]: Without dead ends: 107114 [2018-10-24 14:41:42,107 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 [2018-10-24 14:41:42,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107114 states. [2018-10-24 14:41:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107114 to 100204. [2018-10-24 14:41:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100204 states. [2018-10-24 14:41:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100204 states to 100204 states and 101730 transitions. [2018-10-24 14:41:43,012 INFO L78 Accepts]: Start accepts. Automaton has 100204 states and 101730 transitions. Word has length 2604 [2018-10-24 14:41:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:41:43,013 INFO L481 AbstractCegarLoop]: Abstraction has 100204 states and 101730 transitions. [2018-10-24 14:41:43,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:41:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 100204 states and 101730 transitions. [2018-10-24 14:41:43,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2738 [2018-10-24 14:41:43,107 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:41:43,109 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:41:43,109 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:41:43,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:41:43,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1593888318, now seen corresponding path program 1 times [2018-10-24 14:41:43,110 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:41:43,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:41:43,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:43,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:41:43,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:41:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6706 backedges. 3190 proven. 2651 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2018-10-24 14:41:52,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:41:52,026 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:41:52,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:41:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:41:52,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:41:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6706 backedges. 3930 proven. 0 refuted. 0 times theorem prover too weak. 2776 trivial. 0 not checked. [2018-10-24 14:41:56,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:41:56,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 14:41:56,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 14:41:56,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 14:41:56,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:41:56,283 INFO L87 Difference]: Start difference. First operand 100204 states and 101730 transitions. Second operand 12 states. Received shutdown request... [2018-10-24 14:42:10,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 14:42:10,058 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:42:10,063 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:42:10,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:42:10 BoogieIcfgContainer [2018-10-24 14:42:10,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:42:10,066 INFO L168 Benchmark]: Toolchain (without parser) took 228588.50 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,067 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:42:10,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1746.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 555.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -961.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,070 INFO L168 Benchmark]: Boogie Preprocessor took 298.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,071 INFO L168 Benchmark]: RCFGBuilder took 8995.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 538.1 MB). Peak memory consumption was 538.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,071 INFO L168 Benchmark]: TraceAbstraction took 216985.02 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -939.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 14:42:10,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1746.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 555.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -961.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 298.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8995.74 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 538.1 MB). Peak memory consumption was 538.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216985.02 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: -939.9 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 78). Cancelled while BasicCegarLoop was constructing difference of abstraction (100204states) and FLOYD_HOARE automaton (currently 22 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (66438 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 216.9s OverallTime, 18 OverallIterations, 11 TraceHistogramMax, 143.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8842 SDtfs, 44442 SDslu, 4596 SDs, 0 SdLazy, 94732 SolverSat, 12824 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5273 GetRequests, 5149 SyntacticMatches, 22 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125806occurred 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: 12.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 180545 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 20.7s InterpolantComputationTime, 28921 NumberOfCodeBlocks, 28921 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 28900 ConstructedInterpolants, 0 QuantifiedInterpolants, 131829770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5718 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 21 InterpolantComputations, 18 PerfectInterpolantSequences, 53953/57107 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown