java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label11_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:07:46,055 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:07:46,057 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:07:46,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:07:46,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:07:46,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:07:46,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:07:46,074 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:07:46,076 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:07:46,077 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:07:46,078 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:07:46,078 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:07:46,079 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:07:46,080 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:07:46,081 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:07:46,082 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:07:46,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:07:46,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:07:46,087 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:07:46,088 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:07:46,089 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:07:46,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:07:46,093 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:07:46,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:07:46,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:07:46,095 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:07:46,096 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:07:46,096 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:07:46,097 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:07:46,099 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:07:46,099 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:07:46,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:07:46,102 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 14:07:46,133 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:07:46,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:07:46,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:07:46,136 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:07:46,136 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:07:46,137 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:07:46,138 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:07:46,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:07:46,138 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:07:46,138 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:07:46,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:07:46,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:07:46,139 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:07:46,139 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:07:46,139 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:07:46,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:07:46,140 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:07:46,141 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:07:46,141 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:07:46,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:07:46,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:07:46,141 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:07:46,142 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:07:46,142 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:07:46,142 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:07:46,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:07:46,143 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:07:46,143 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:07:46,190 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:07:46,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:07:46,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:07:46,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:07:46,217 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:07:46,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label11_false-unreach-call.c [2018-10-24 14:07:46,284 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b44575fd1/38a973cf81d947ac8453098883281d90/FLAGa733bdd84 [2018-10-24 14:07:47,115 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:07:47,119 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label11_false-unreach-call.c [2018-10-24 14:07:47,165 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b44575fd1/38a973cf81d947ac8453098883281d90/FLAGa733bdd84 [2018-10-24 14:07:47,186 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b44575fd1/38a973cf81d947ac8453098883281d90 [2018-10-24 14:07:47,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:07:47,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:07:47,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:07:47,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:07:47,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:07:47,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:07:47" (1/1) ... [2018-10-24 14:07:47,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a79e33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:47, skipping insertion in model container [2018-10-24 14:07:47,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:07:47" (1/1) ... [2018-10-24 14:07:47,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:07:47,423 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:07:49,073 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:07:49,079 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:07:49,781 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:07:49,820 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:07:49,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49 WrapperNode [2018-10-24 14:07:49,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:07:49,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:07:49,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:07:49,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:07:49,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:49,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:07:50,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:07:50,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:07:50,652 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:07:50,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:50,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:51,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (1/1) ... [2018-10-24 14:07:51,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:07:51,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:07:51,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:07:51,149 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:07:51,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (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 14:07:51,231 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:07:51,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:07:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:08:04,390 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:08:04,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:04 BoogieIcfgContainer [2018-10-24 14:08:04,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:08:04,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:08:04,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:08:04,395 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:08:04,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:07:47" (1/3) ... [2018-10-24 14:08:04,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671161ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:04, skipping insertion in model container [2018-10-24 14:08:04,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:07:49" (2/3) ... [2018-10-24 14:08:04,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@671161ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:04, skipping insertion in model container [2018-10-24 14:08:04,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:04" (3/3) ... [2018-10-24 14:08:04,399 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label11_false-unreach-call.c [2018-10-24 14:08:04,409 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:08:04,418 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:08:04,435 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:08:04,489 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:08:04,490 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:08:04,490 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:08:04,490 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:08:04,490 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:08:04,490 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:08:04,490 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:08:04,490 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:08:04,491 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:08:04,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:08:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-24 14:08:04,553 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:04,555 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:08:04,557 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:04,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:04,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1740446778, now seen corresponding path program 1 times [2018-10-24 14:08:04,566 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:04,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:04,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:04,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:04,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:05,071 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 14:08:05,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:05,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:05,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:05,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:05,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:05,104 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:08:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:20,701 INFO L93 Difference]: Finished difference Result 3973 states and 7416 transitions. [2018-10-24 14:08:20,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:20,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-24 14:08:20,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:20,758 INFO L225 Difference]: With dead ends: 3973 [2018-10-24 14:08:20,758 INFO L226 Difference]: Without dead ends: 2867 [2018-10-24 14:08:20,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 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 14:08:20,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2018-10-24 14:08:20,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 1938. [2018-10-24 14:08:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1938 states. [2018-10-24 14:08:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 3240 transitions. [2018-10-24 14:08:20,948 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 3240 transitions. Word has length 27 [2018-10-24 14:08:20,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:20,949 INFO L481 AbstractCegarLoop]: Abstraction has 1938 states and 3240 transitions. [2018-10-24 14:08:20,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:20,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 3240 transitions. [2018-10-24 14:08:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-24 14:08:20,954 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:20,956 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:20,956 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:20,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:20,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1230589024, now seen corresponding path program 1 times [2018-10-24 14:08:20,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:20,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:20,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:20,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:20,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:21,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:21,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:21,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:21,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:21,258 INFO L87 Difference]: Start difference. First operand 1938 states and 3240 transitions. Second operand 4 states. [2018-10-24 14:08:36,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:36,045 INFO L93 Difference]: Finished difference Result 7100 states and 12101 transitions. [2018-10-24 14:08:36,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:36,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-10-24 14:08:36,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:36,076 INFO L225 Difference]: With dead ends: 7100 [2018-10-24 14:08:36,077 INFO L226 Difference]: Without dead ends: 5164 [2018-10-24 14:08:36,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:08:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2018-10-24 14:08:36,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 3540. [2018-10-24 14:08:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3540 states. [2018-10-24 14:08:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3540 states to 3540 states and 5445 transitions. [2018-10-24 14:08:36,168 INFO L78 Accepts]: Start accepts. Automaton has 3540 states and 5445 transitions. Word has length 99 [2018-10-24 14:08:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:36,169 INFO L481 AbstractCegarLoop]: Abstraction has 3540 states and 5445 transitions. [2018-10-24 14:08:36,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3540 states and 5445 transitions. [2018-10-24 14:08:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-24 14:08:36,172 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:36,172 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:36,172 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:36,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:36,173 INFO L82 PathProgramCache]: Analyzing trace with hash -374902493, now seen corresponding path program 1 times [2018-10-24 14:08:36,173 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:36,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:36,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:36,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:36,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:36,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:36,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:36,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:36,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:36,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:36,551 INFO L87 Difference]: Start difference. First operand 3540 states and 5445 transitions. Second operand 4 states. [2018-10-24 14:08:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:54,651 INFO L93 Difference]: Finished difference Result 13554 states and 21081 transitions. [2018-10-24 14:08:54,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:08:54,653 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2018-10-24 14:08:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:54,705 INFO L225 Difference]: With dead ends: 13554 [2018-10-24 14:08:54,705 INFO L226 Difference]: Without dead ends: 10016 [2018-10-24 14:08:54,713 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 14:08:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2018-10-24 14:08:54,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 6718. [2018-10-24 14:08:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6718 states. [2018-10-24 14:08:54,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 9885 transitions. [2018-10-24 14:08:54,869 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 9885 transitions. Word has length 113 [2018-10-24 14:08:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:54,870 INFO L481 AbstractCegarLoop]: Abstraction has 6718 states and 9885 transitions. [2018-10-24 14:08:54,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:08:54,870 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 9885 transitions. [2018-10-24 14:08:54,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 14:08:54,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:54,874 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:54,874 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:54,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:54,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1130372016, now seen corresponding path program 1 times [2018-10-24 14:08:54,875 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:54,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:54,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:54,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:54,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:08:55,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:55,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:55,175 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:08:55,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:08:55,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:08:55,176 INFO L87 Difference]: Start difference. First operand 6718 states and 9885 transitions. Second operand 4 states. [2018-10-24 14:09:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:06,751 INFO L93 Difference]: Finished difference Result 23854 states and 35012 transitions. [2018-10-24 14:09:06,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:06,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2018-10-24 14:09:06,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:06,817 INFO L225 Difference]: With dead ends: 23854 [2018-10-24 14:09:06,817 INFO L226 Difference]: Without dead ends: 17138 [2018-10-24 14:09:06,830 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 14:09:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17138 states. [2018-10-24 14:09:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17138 to 13037. [2018-10-24 14:09:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13037 states. [2018-10-24 14:09:07,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13037 states to 13037 states and 18976 transitions. [2018-10-24 14:09:07,072 INFO L78 Accepts]: Start accepts. Automaton has 13037 states and 18976 transitions. Word has length 131 [2018-10-24 14:09:07,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:07,072 INFO L481 AbstractCegarLoop]: Abstraction has 13037 states and 18976 transitions. [2018-10-24 14:09:07,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:09:07,072 INFO L276 IsEmpty]: Start isEmpty. Operand 13037 states and 18976 transitions. [2018-10-24 14:09:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 14:09:07,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:07,076 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:07,076 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:07,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:07,077 INFO L82 PathProgramCache]: Analyzing trace with hash -563174204, now seen corresponding path program 1 times [2018-10-24 14:09:07,077 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:07,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:07,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:07,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:07,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:07,628 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 14:09:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:07,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:07,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:09:07,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:09:07,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:09:07,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:09:07,808 INFO L87 Difference]: Start difference. First operand 13037 states and 18976 transitions. Second operand 6 states. [2018-10-24 14:09:28,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:28,533 INFO L93 Difference]: Finished difference Result 41151 states and 59128 transitions. [2018-10-24 14:09:28,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:09:28,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-10-24 14:09:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:28,602 INFO L225 Difference]: With dead ends: 41151 [2018-10-24 14:09:28,602 INFO L226 Difference]: Without dead ends: 28116 [2018-10-24 14:09:28,618 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:09:28,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28116 states. [2018-10-24 14:09:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28116 to 27248. [2018-10-24 14:09:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27248 states. [2018-10-24 14:09:28,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27248 states to 27248 states and 35784 transitions. [2018-10-24 14:09:28,989 INFO L78 Accepts]: Start accepts. Automaton has 27248 states and 35784 transitions. Word has length 139 [2018-10-24 14:09:28,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:28,990 INFO L481 AbstractCegarLoop]: Abstraction has 27248 states and 35784 transitions. [2018-10-24 14:09:28,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:09:28,990 INFO L276 IsEmpty]: Start isEmpty. Operand 27248 states and 35784 transitions. [2018-10-24 14:09:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-24 14:09:28,993 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:28,993 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:28,994 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:28,994 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:28,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1293456882, now seen corresponding path program 1 times [2018-10-24 14:09:28,994 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:28,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:28,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:28,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:28,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-24 14:09:29,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:09:29,381 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 14:09:29,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:29,509 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:09:29,670 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-24 14:09:29,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:09:29,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 14:09:29,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:09:29,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:09:29,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:29,703 INFO L87 Difference]: Start difference. First operand 27248 states and 35784 transitions. Second operand 5 states. [2018-10-24 14:09:42,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:42,977 INFO L93 Difference]: Finished difference Result 82903 states and 112809 transitions. [2018-10-24 14:09:42,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:09:42,978 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 153 [2018-10-24 14:09:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:43,070 INFO L225 Difference]: With dead ends: 82903 [2018-10-24 14:09:43,070 INFO L226 Difference]: Without dead ends: 55657 [2018-10-24 14:09:43,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:43,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55657 states. [2018-10-24 14:09:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55657 to 55618. [2018-10-24 14:09:43,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55618 states. [2018-10-24 14:09:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55618 states to 55618 states and 71686 transitions. [2018-10-24 14:09:44,000 INFO L78 Accepts]: Start accepts. Automaton has 55618 states and 71686 transitions. Word has length 153 [2018-10-24 14:09:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:44,000 INFO L481 AbstractCegarLoop]: Abstraction has 55618 states and 71686 transitions. [2018-10-24 14:09:44,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:09:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 55618 states and 71686 transitions. [2018-10-24 14:09:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-10-24 14:09:44,011 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:44,012 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:09:44,012 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:44,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:44,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1684085742, now seen corresponding path program 1 times [2018-10-24 14:09:44,014 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:44,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:44,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:44,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:44,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:09:44,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:44,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:09:44,288 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:09:44,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:09:44,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:09:44,289 INFO L87 Difference]: Start difference. First operand 55618 states and 71686 transitions. Second operand 3 states. [2018-10-24 14:09:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:51,893 INFO L93 Difference]: Finished difference Result 111218 states and 143356 transitions. [2018-10-24 14:09:51,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:09:51,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-10-24 14:09:51,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:52,384 INFO L225 Difference]: With dead ends: 111218 [2018-10-24 14:09:52,384 INFO L226 Difference]: Without dead ends: 55602 [2018-10-24 14:09:52,425 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 14:09:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55602 states. [2018-10-24 14:09:52,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55602 to 55598. [2018-10-24 14:09:52,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55598 states. [2018-10-24 14:09:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55598 states to 55598 states and 66522 transitions. [2018-10-24 14:09:53,055 INFO L78 Accepts]: Start accepts. Automaton has 55598 states and 66522 transitions. Word has length 291 [2018-10-24 14:09:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:09:53,056 INFO L481 AbstractCegarLoop]: Abstraction has 55598 states and 66522 transitions. [2018-10-24 14:09:53,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:09:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 55598 states and 66522 transitions. [2018-10-24 14:09:53,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-10-24 14:09:53,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:09:53,069 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:09:53,069 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:09:53,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:09:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1676387808, now seen corresponding path program 1 times [2018-10-24 14:09:53,070 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:09:53,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:09:53,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:53,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:09:53,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:09:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:09:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-10-24 14:09:53,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:09:53,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:09:53,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:09:53,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:09:53,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:09:53,538 INFO L87 Difference]: Start difference. First operand 55598 states and 66522 transitions. Second operand 5 states. [2018-10-24 14:10:13,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:13,847 INFO L93 Difference]: Finished difference Result 150115 states and 180029 transitions. [2018-10-24 14:10:13,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:10:13,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2018-10-24 14:10:13,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:13,950 INFO L225 Difference]: With dead ends: 150115 [2018-10-24 14:10:13,950 INFO L226 Difference]: Without dead ends: 95308 [2018-10-24 14:10:13,985 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:10:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95308 states. [2018-10-24 14:10:14,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95308 to 95109. [2018-10-24 14:10:14,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95109 states. [2018-10-24 14:10:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95109 states to 95109 states and 111969 transitions. [2018-10-24 14:10:15,084 INFO L78 Accepts]: Start accepts. Automaton has 95109 states and 111969 transitions. Word has length 313 [2018-10-24 14:10:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:15,085 INFO L481 AbstractCegarLoop]: Abstraction has 95109 states and 111969 transitions. [2018-10-24 14:10:15,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:10:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 95109 states and 111969 transitions. [2018-10-24 14:10:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-24 14:10:15,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:15,106 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:15,106 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:15,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:15,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1147596034, now seen corresponding path program 1 times [2018-10-24 14:10:15,107 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:15,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:15,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:15,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:15,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:15,444 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 220 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-10-24 14:10:15,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:10:15,444 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 14:10:15,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:15,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:10:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-10-24 14:10:15,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:10:15,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:10:15,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:15,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:15,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:15,715 INFO L87 Difference]: Start difference. First operand 95109 states and 111969 transitions. Second operand 4 states. [2018-10-24 14:10:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:27,636 INFO L93 Difference]: Finished difference Result 289559 states and 339802 transitions. [2018-10-24 14:10:27,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:27,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 360 [2018-10-24 14:10:27,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:27,939 INFO L225 Difference]: With dead ends: 289559 [2018-10-24 14:10:27,939 INFO L226 Difference]: Without dead ends: 194452 [2018-10-24 14:10:28,042 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 360 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 14:10:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194452 states. [2018-10-24 14:10:30,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194452 to 157355. [2018-10-24 14:10:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157355 states. [2018-10-24 14:10:31,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157355 states to 157355 states and 180738 transitions. [2018-10-24 14:10:31,521 INFO L78 Accepts]: Start accepts. Automaton has 157355 states and 180738 transitions. Word has length 360 [2018-10-24 14:10:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:31,521 INFO L481 AbstractCegarLoop]: Abstraction has 157355 states and 180738 transitions. [2018-10-24 14:10:31,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:10:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 157355 states and 180738 transitions. [2018-10-24 14:10:31,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-10-24 14:10:31,538 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:31,539 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 14:10:31,539 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:31,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:31,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1391742265, now seen corresponding path program 1 times [2018-10-24 14:10:31,540 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:31,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:31,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:31,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:31,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-10-24 14:10:31,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:31,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:10:31,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:10:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:10:31,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:31,884 INFO L87 Difference]: Start difference. First operand 157355 states and 180738 transitions. Second operand 3 states. [2018-10-24 14:10:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:43,951 INFO L93 Difference]: Finished difference Result 410049 states and 468952 transitions. [2018-10-24 14:10:43,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:10:43,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 362 [2018-10-24 14:10:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:10:44,265 INFO L225 Difference]: With dead ends: 410049 [2018-10-24 14:10:44,265 INFO L226 Difference]: Without dead ends: 239261 [2018-10-24 14:10:44,380 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:10:44,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239261 states. [2018-10-24 14:10:47,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239261 to 229788. [2018-10-24 14:10:47,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229788 states. [2018-10-24 14:10:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229788 states to 229788 states and 253351 transitions. [2018-10-24 14:10:47,658 INFO L78 Accepts]: Start accepts. Automaton has 229788 states and 253351 transitions. Word has length 362 [2018-10-24 14:10:47,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:10:47,658 INFO L481 AbstractCegarLoop]: Abstraction has 229788 states and 253351 transitions. [2018-10-24 14:10:47,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:10:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 229788 states and 253351 transitions. [2018-10-24 14:10:47,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-10-24 14:10:47,670 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:10:47,670 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:10:47,670 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:10:47,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:10:47,671 INFO L82 PathProgramCache]: Analyzing trace with hash 752937186, now seen corresponding path program 1 times [2018-10-24 14:10:47,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:10:47,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:10:47,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:47,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:10:47,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:10:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:10:48,014 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:10:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 403 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-10-24 14:10:48,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:10:48,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:10:48,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:10:48,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:10:48,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:10:48,127 INFO L87 Difference]: Start difference. First operand 229788 states and 253351 transitions. Second operand 4 states. [2018-10-24 14:10:58,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:10:58,543 INFO L93 Difference]: Finished difference Result 467456 states and 514905 transitions. [2018-10-24 14:10:58,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:10:58,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 408 [2018-10-24 14:10:58,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:00,133 INFO L225 Difference]: With dead ends: 467456 [2018-10-24 14:11:00,134 INFO L226 Difference]: Without dead ends: 221863 [2018-10-24 14:11:00,189 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 14:11:00,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221863 states. [2018-10-24 14:11:09,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221863 to 211614. [2018-10-24 14:11:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211614 states. [2018-10-24 14:11:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211614 states to 211614 states and 231477 transitions. [2018-10-24 14:11:09,378 INFO L78 Accepts]: Start accepts. Automaton has 211614 states and 231477 transitions. Word has length 408 [2018-10-24 14:11:09,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:09,378 INFO L481 AbstractCegarLoop]: Abstraction has 211614 states and 231477 transitions. [2018-10-24 14:11:09,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:09,378 INFO L276 IsEmpty]: Start isEmpty. Operand 211614 states and 231477 transitions. [2018-10-24 14:11:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2018-10-24 14:11:09,387 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:09,387 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:09,387 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:09,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1170904145, now seen corresponding path program 1 times [2018-10-24 14:11:09,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:09,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:09,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:09,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:09,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:09,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-10-24 14:11:09,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:09,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:11:09,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:11:09,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:11:09,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:09,696 INFO L87 Difference]: Start difference. First operand 211614 states and 231477 transitions. Second operand 4 states. [2018-10-24 14:11:20,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:20,728 INFO L93 Difference]: Finished difference Result 484735 states and 530963 transitions. [2018-10-24 14:11:20,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:11:20,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 417 [2018-10-24 14:11:20,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:20,996 INFO L225 Difference]: With dead ends: 484735 [2018-10-24 14:11:20,996 INFO L226 Difference]: Without dead ends: 272331 [2018-10-24 14:11:21,075 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:11:21,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272331 states. [2018-10-24 14:11:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272331 to 260456. [2018-10-24 14:11:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260456 states. [2018-10-24 14:11:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260456 states to 260456 states and 280725 transitions. [2018-10-24 14:11:24,628 INFO L78 Accepts]: Start accepts. Automaton has 260456 states and 280725 transitions. Word has length 417 [2018-10-24 14:11:24,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:11:24,628 INFO L481 AbstractCegarLoop]: Abstraction has 260456 states and 280725 transitions. [2018-10-24 14:11:24,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:11:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 260456 states and 280725 transitions. [2018-10-24 14:11:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2018-10-24 14:11:24,637 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:11:24,638 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, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:24,638 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:11:24,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:11:24,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1434245760, now seen corresponding path program 1 times [2018-10-24 14:11:24,639 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:11:24,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:11:24,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:24,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:11:24,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:11:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:11:25,156 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-10-24 14:11:25,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:11:25,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:11:25,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:11:25,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:11:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:11:25,158 INFO L87 Difference]: Start difference. First operand 260456 states and 280725 transitions. Second operand 3 states. [2018-10-24 14:11:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:11:30,334 INFO L93 Difference]: Finished difference Result 516166 states and 556078 transitions. [2018-10-24 14:11:30,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:11:30,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 517 [2018-10-24 14:11:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:11:30,647 INFO L225 Difference]: With dead ends: 516166 [2018-10-24 14:11:30,647 INFO L226 Difference]: Without dead ends: 255709 [2018-10-24 14:11:30,795 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:11:30,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255709 states. Received shutdown request... [2018-10-24 14:11:32,108 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:11:32,113 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:11:32,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:11:32 BoogieIcfgContainer [2018-10-24 14:11:32,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:11:32,114 INFO L168 Benchmark]: Toolchain (without parser) took 224915.01 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,116 INFO L168 Benchmark]: CDTParser took 0.24 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 14:11:32,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2619.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,117 INFO L168 Benchmark]: Boogie Procedure Inliner took 829.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 806.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,118 INFO L168 Benchmark]: Boogie Preprocessor took 496.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,119 INFO L168 Benchmark]: RCFGBuilder took 13241.69 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 250.1 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 601.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,120 INFO L168 Benchmark]: TraceAbstraction took 207721.99 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -447.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:11:32,126 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2619.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 829.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 806.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 496.66 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13241.69 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 250.1 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 601.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207721.99 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -447.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 90). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 207.6s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 177.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10578 SDtfs, 24924 SDslu, 3836 SDs, 0 SdLazy, 66261 SolverSat, 13650 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 142.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 556 GetRequests, 525 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=260456occurred in iteration=12, 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: 24.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 79756 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 3843 NumberOfCodeBlocks, 3843 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 3828 ConstructedInterpolants, 0 QuantifiedInterpolants, 3181922 SizeOfPredicates, 1 NumberOfNonLiveVariables, 708 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 3386/3396 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown