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_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:55:31,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:55:31,040 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:55:31,055 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:55:31,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:55:31,058 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:55:31,059 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:55:31,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:55:31,070 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:55:31,071 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:55:31,072 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:55:31,072 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:55:31,073 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:55:31,074 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:55:31,075 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:55:31,076 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:55:31,077 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:55:31,080 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:55:31,085 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:55:31,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:55:31,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:55:31,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:55:31,097 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:55:31,098 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:55:31,098 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:55:31,099 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:55:31,100 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:55:31,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:55:31,101 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:55:31,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:55:31,103 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:55:31,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:55:31,106 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 16:55:31,120 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:55:31,121 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:55:31,121 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:55:31,122 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:55:31,122 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:55:31,122 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:55:31,123 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:55:31,123 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:55:31,123 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:55:31,123 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:55:31,123 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:55:31,124 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:55:31,124 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:55:31,124 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:55:31,124 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:55:31,124 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:55:31,125 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:55:31,125 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:55:31,125 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:55:31,125 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:55:31,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:55:31,125 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:55:31,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:55:31,126 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:55:31,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:55:31,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:55:31,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:55:31,127 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:55:31,177 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:55:31,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:55:31,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:55:31,198 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:55:31,199 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:55:31,200 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-10-24 16:55:31,267 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5ae4ccab9/f084c84cea254b8e901cc529b979a408/FLAG4e503a947 [2018-10-24 16:55:32,033 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:55:32,033 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-10-24 16:55:32,057 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5ae4ccab9/f084c84cea254b8e901cc529b979a408/FLAG4e503a947 [2018-10-24 16:55:32,073 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5ae4ccab9/f084c84cea254b8e901cc529b979a408 [2018-10-24 16:55:32,084 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:55:32,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:55:32,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:55:32,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:55:32,092 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:55:32,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:55:32" (1/1) ... [2018-10-24 16:55:32,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d22c5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:32, skipping insertion in model container [2018-10-24 16:55:32,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:55:32" (1/1) ... [2018-10-24 16:55:32,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:55:32,230 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:55:33,419 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:55:33,424 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:55:33,922 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:55:33,950 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:55:33,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33 WrapperNode [2018-10-24 16:55:33,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:55:33,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:55:33,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:55:33,955 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:55:33,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:55:34,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:55:34,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:55:34,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:55:34,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (1/1) ... [2018-10-24 16:55:34,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:55:34,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:55:34,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:55:34,724 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:55:34,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (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 16:55:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:55:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:55:34,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:55:42,148 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:55:42,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:55:42 BoogieIcfgContainer [2018-10-24 16:55:42,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:55:42,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:55:42,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:55:42,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:55:42,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:55:32" (1/3) ... [2018-10-24 16:55:42,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:55:42, skipping insertion in model container [2018-10-24 16:55:42,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:55:33" (2/3) ... [2018-10-24 16:55:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527c2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:55:42, skipping insertion in model container [2018-10-24 16:55:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:55:42" (3/3) ... [2018-10-24 16:55:42,158 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label14_true-unreach-call.c [2018-10-24 16:55:42,168 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:55:42,177 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:55:42,191 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:55:42,242 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:55:42,242 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:55:42,243 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:55:42,243 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:55:42,243 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:55:42,243 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:55:42,243 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:55:42,243 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:55:42,243 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:55:42,281 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-24 16:55:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-24 16:55:42,292 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:55:42,294 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:55:42,297 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:55:42,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:55:42,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1316472986, now seen corresponding path program 1 times [2018-10-24 16:55:42,305 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:55:42,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:55:42,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:55:42,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:55:42,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:55:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:55:42,918 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 16:55:42,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:55:42,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 16:55:42,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:55:42,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:55:42,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:55:42,945 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 6 states. [2018-10-24 16:56:00,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:00,622 INFO L93 Difference]: Finished difference Result 4292 states and 8414 transitions. [2018-10-24 16:56:00,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 16:56:00,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2018-10-24 16:56:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:00,676 INFO L225 Difference]: With dead ends: 4292 [2018-10-24 16:56:00,676 INFO L226 Difference]: Without dead ends: 3521 [2018-10-24 16:56:00,688 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:56:00,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3521 states. [2018-10-24 16:56:00,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3521 to 2828. [2018-10-24 16:56:00,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2828 states. [2018-10-24 16:56:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 4092 transitions. [2018-10-24 16:56:00,866 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 4092 transitions. Word has length 51 [2018-10-24 16:56:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:00,867 INFO L481 AbstractCegarLoop]: Abstraction has 2828 states and 4092 transitions. [2018-10-24 16:56:00,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:56:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 4092 transitions. [2018-10-24 16:56:00,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 16:56:00,876 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:00,877 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:56:00,877 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:00,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash 191853071, now seen corresponding path program 1 times [2018-10-24 16:56:00,878 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:00,878 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:00,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:00,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:00,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:01,509 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-10-24 16:56:01,593 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:56:01,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:56:01,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:56:01,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:56:01,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:56:01,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:56:01,596 INFO L87 Difference]: Start difference. First operand 2828 states and 4092 transitions. Second operand 5 states. [2018-10-24 16:56:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:12,530 INFO L93 Difference]: Finished difference Result 8418 states and 12613 transitions. [2018-10-24 16:56:12,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:56:12,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-10-24 16:56:12,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:12,558 INFO L225 Difference]: With dead ends: 8418 [2018-10-24 16:56:12,558 INFO L226 Difference]: Without dead ends: 5592 [2018-10-24 16:56:12,563 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:56:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2018-10-24 16:56:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 5592. [2018-10-24 16:56:12,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5592 states. [2018-10-24 16:56:12,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5592 states to 5592 states and 7127 transitions. [2018-10-24 16:56:12,667 INFO L78 Accepts]: Start accepts. Automaton has 5592 states and 7127 transitions. Word has length 145 [2018-10-24 16:56:12,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:12,667 INFO L481 AbstractCegarLoop]: Abstraction has 5592 states and 7127 transitions. [2018-10-24 16:56:12,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:56:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5592 states and 7127 transitions. [2018-10-24 16:56:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-24 16:56:12,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:12,683 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:12,684 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:12,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:12,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1030898957, now seen corresponding path program 1 times [2018-10-24 16:56:12,684 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:12,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:12,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:12,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:12,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-10-24 16:56:13,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:56:13,157 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 16:56:13,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:13,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:56:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:56:13,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:56:13,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 16:56:13,391 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:56:13,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:56:13,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:56:13,392 INFO L87 Difference]: Start difference. First operand 5592 states and 7127 transitions. Second operand 5 states. [2018-10-24 16:56:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:23,477 INFO L93 Difference]: Finished difference Result 18108 states and 25288 transitions. [2018-10-24 16:56:23,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:56:23,482 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 234 [2018-10-24 16:56:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:23,539 INFO L225 Difference]: With dead ends: 18108 [2018-10-24 16:56:23,539 INFO L226 Difference]: Without dead ends: 13209 [2018-10-24 16:56:23,547 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:56:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13209 states. [2018-10-24 16:56:23,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13209 to 9047. [2018-10-24 16:56:23,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9047 states. [2018-10-24 16:56:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9047 states to 9047 states and 11958 transitions. [2018-10-24 16:56:23,752 INFO L78 Accepts]: Start accepts. Automaton has 9047 states and 11958 transitions. Word has length 234 [2018-10-24 16:56:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:23,753 INFO L481 AbstractCegarLoop]: Abstraction has 9047 states and 11958 transitions. [2018-10-24 16:56:23,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:56:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 9047 states and 11958 transitions. [2018-10-24 16:56:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-24 16:56:23,762 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:23,763 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:56:23,763 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:23,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash 607450177, now seen corresponding path program 1 times [2018-10-24 16:56:23,764 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:23,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:23,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:23,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 196 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:56:24,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:56:24,406 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 16:56:24,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:24,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:56:24,617 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-10-24 16:56:24,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:56:24,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-24 16:56:24,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:56:24,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:56:24,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:56:24,641 INFO L87 Difference]: Start difference. First operand 9047 states and 11958 transitions. Second operand 6 states. [2018-10-24 16:56:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:34,787 INFO L93 Difference]: Finished difference Result 29855 states and 39678 transitions. [2018-10-24 16:56:34,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:56:34,790 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2018-10-24 16:56:34,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:34,851 INFO L225 Difference]: With dead ends: 29855 [2018-10-24 16:56:34,851 INFO L226 Difference]: Without dead ends: 20117 [2018-10-24 16:56:34,865 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:56:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20117 states. [2018-10-24 16:56:35,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20117 to 14574. [2018-10-24 16:56:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14574 states. [2018-10-24 16:56:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14574 states to 14574 states and 16600 transitions. [2018-10-24 16:56:35,120 INFO L78 Accepts]: Start accepts. Automaton has 14574 states and 16600 transitions. Word has length 338 [2018-10-24 16:56:35,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:35,120 INFO L481 AbstractCegarLoop]: Abstraction has 14574 states and 16600 transitions. [2018-10-24 16:56:35,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:56:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 14574 states and 16600 transitions. [2018-10-24 16:56:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1035 [2018-10-24 16:56:35,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:35,159 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:35,159 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:35,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash 841803403, now seen corresponding path program 1 times [2018-10-24 16:56:35,160 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:35,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:35,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:35,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:35,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:36,108 WARN L179 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-10-24 16:56:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-10-24 16:56:37,057 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:56:37,057 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:56:37,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:56:37,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:56:37,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:56:37,061 INFO L87 Difference]: Start difference. First operand 14574 states and 16600 transitions. Second operand 4 states. [2018-10-24 16:56:44,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:44,146 INFO L93 Difference]: Finished difference Result 49185 states and 57175 transitions. [2018-10-24 16:56:44,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:56:44,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1034 [2018-10-24 16:56:44,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:44,216 INFO L225 Difference]: With dead ends: 49185 [2018-10-24 16:56:44,216 INFO L226 Difference]: Without dead ends: 35304 [2018-10-24 16:56:44,233 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:56:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35304 states. [2018-10-24 16:56:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35304 to 34613. [2018-10-24 16:56:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34613 states. [2018-10-24 16:56:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34613 states to 34613 states and 38816 transitions. [2018-10-24 16:56:44,661 INFO L78 Accepts]: Start accepts. Automaton has 34613 states and 38816 transitions. Word has length 1034 [2018-10-24 16:56:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:44,663 INFO L481 AbstractCegarLoop]: Abstraction has 34613 states and 38816 transitions. [2018-10-24 16:56:44,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:56:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 34613 states and 38816 transitions. [2018-10-24 16:56:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2018-10-24 16:56:44,718 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:44,719 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:44,719 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:44,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:44,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1215301676, now seen corresponding path program 1 times [2018-10-24 16:56:44,720 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:44,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:44,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:44,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:44,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 16:56:46,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:56:46,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:56:46,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:56:46,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:56:46,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:56:46,174 INFO L87 Difference]: Start difference. First operand 34613 states and 38816 transitions. Second operand 4 states. [2018-10-24 16:56:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:51,470 INFO L93 Difference]: Finished difference Result 85808 states and 97408 transitions. [2018-10-24 16:56:51,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:56:51,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1076 [2018-10-24 16:56:51,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:51,561 INFO L225 Difference]: With dead ends: 85808 [2018-10-24 16:56:51,562 INFO L226 Difference]: Without dead ends: 51888 [2018-10-24 16:56:51,593 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 16:56:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51888 states. [2018-10-24 16:56:52,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51888 to 51197. [2018-10-24 16:56:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51197 states. [2018-10-24 16:56:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51197 states to 51197 states and 57235 transitions. [2018-10-24 16:56:52,091 INFO L78 Accepts]: Start accepts. Automaton has 51197 states and 57235 transitions. Word has length 1076 [2018-10-24 16:56:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:52,093 INFO L481 AbstractCegarLoop]: Abstraction has 51197 states and 57235 transitions. [2018-10-24 16:56:52,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:56:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 51197 states and 57235 transitions. [2018-10-24 16:56:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2018-10-24 16:56:52,110 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:52,111 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:56:52,112 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:52,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:52,112 INFO L82 PathProgramCache]: Analyzing trace with hash -159393085, now seen corresponding path program 1 times [2018-10-24 16:56:52,113 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:52,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:52,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:52,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:52,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:56:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 643 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2018-10-24 16:56:53,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:56:53,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:56:53,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:56:53,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:56:53,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:56:53,285 INFO L87 Difference]: Start difference. First operand 51197 states and 57235 transitions. Second operand 4 states. [2018-10-24 16:56:58,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:56:58,209 INFO L93 Difference]: Finished difference Result 101701 states and 113776 transitions. [2018-10-24 16:56:58,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:56:58,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1076 [2018-10-24 16:56:58,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:56:58,302 INFO L225 Difference]: With dead ends: 101701 [2018-10-24 16:56:58,302 INFO L226 Difference]: Without dead ends: 51197 [2018-10-24 16:56:58,335 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 16:56:58,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51197 states. [2018-10-24 16:56:58,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51197 to 51197. [2018-10-24 16:56:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51197 states. [2018-10-24 16:56:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51197 states to 51197 states and 56658 transitions. [2018-10-24 16:56:58,894 INFO L78 Accepts]: Start accepts. Automaton has 51197 states and 56658 transitions. Word has length 1076 [2018-10-24 16:56:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:56:58,896 INFO L481 AbstractCegarLoop]: Abstraction has 51197 states and 56658 transitions. [2018-10-24 16:56:58,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:56:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 51197 states and 56658 transitions. [2018-10-24 16:56:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-10-24 16:56:58,923 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:56:58,924 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:56:58,925 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:56:58,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:56:58,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1601181541, now seen corresponding path program 1 times [2018-10-24 16:56:58,926 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:56:58,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:56:58,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:58,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:56:58,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:56:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:02,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 461 proven. 752 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-24 16:57:02,390 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:57:02,391 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 16:57:02,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:02,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:57:03,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 606 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2018-10-24 16:57:03,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:57:03,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 16:57:03,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 16:57:03,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 16:57:03,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-10-24 16:57:03,387 INFO L87 Difference]: Start difference. First operand 51197 states and 56658 transitions. Second operand 12 states. [2018-10-24 16:57:23,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:57:23,470 INFO L93 Difference]: Finished difference Result 149837 states and 169075 transitions. [2018-10-24 16:57:23,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-24 16:57:23,470 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1126 [2018-10-24 16:57:23,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:57:23,597 INFO L225 Difference]: With dead ends: 149837 [2018-10-24 16:57:23,597 INFO L226 Difference]: Without dead ends: 99333 [2018-10-24 16:57:23,628 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1139 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=241, Invalid=629, Unknown=0, NotChecked=0, Total=870 [2018-10-24 16:57:23,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99333 states. [2018-10-24 16:57:24,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99333 to 69854. [2018-10-24 16:57:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69854 states. [2018-10-24 16:57:24,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69854 states to 69854 states and 76930 transitions. [2018-10-24 16:57:24,442 INFO L78 Accepts]: Start accepts. Automaton has 69854 states and 76930 transitions. Word has length 1126 [2018-10-24 16:57:24,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:57:24,443 INFO L481 AbstractCegarLoop]: Abstraction has 69854 states and 76930 transitions. [2018-10-24 16:57:24,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 16:57:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 69854 states and 76930 transitions. [2018-10-24 16:57:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2018-10-24 16:57:24,460 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:24,461 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:57:24,461 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:24,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:24,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1423836986, now seen corresponding path program 1 times [2018-10-24 16:57:24,462 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:24,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:24,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:24,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:24,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 770 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2018-10-24 16:57:25,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:57:25,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:57:25,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:57:25,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:57:25,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:57:25,701 INFO L87 Difference]: Start difference. First operand 69854 states and 76930 transitions. Second operand 4 states. [2018-10-24 16:57:30,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:57:30,956 INFO L93 Difference]: Finished difference Result 159745 states and 175987 transitions. [2018-10-24 16:57:30,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:57:30,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1126 [2018-10-24 16:57:30,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:57:31,054 INFO L225 Difference]: With dead ends: 159745 [2018-10-24 16:57:31,054 INFO L226 Difference]: Without dead ends: 90584 [2018-10-24 16:57:31,095 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 16:57:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90584 states. [2018-10-24 16:57:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90584 to 90584. [2018-10-24 16:57:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90584 states. [2018-10-24 16:57:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90584 states to 90584 states and 97916 transitions. [2018-10-24 16:57:31,759 INFO L78 Accepts]: Start accepts. Automaton has 90584 states and 97916 transitions. Word has length 1126 [2018-10-24 16:57:31,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:57:31,760 INFO L481 AbstractCegarLoop]: Abstraction has 90584 states and 97916 transitions. [2018-10-24 16:57:31,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:57:31,760 INFO L276 IsEmpty]: Start isEmpty. Operand 90584 states and 97916 transitions. [2018-10-24 16:57:31,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2018-10-24 16:57:31,773 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:31,774 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:57:31,774 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:31,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:31,775 INFO L82 PathProgramCache]: Analyzing trace with hash -128694643, now seen corresponding path program 1 times [2018-10-24 16:57:31,775 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:31,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:31,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:31,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:31,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:31,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:32,718 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-10-24 16:57:36,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 665 proven. 499 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2018-10-24 16:57:36,302 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:57:36,303 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:57:36,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:36,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:57:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2018-10-24 16:57:38,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:57:38,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-10-24 16:57:38,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 16:57:38,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 16:57:38,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-10-24 16:57:38,355 INFO L87 Difference]: Start difference. First operand 90584 states and 97916 transitions. Second operand 13 states. [2018-10-24 16:57:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:57:54,865 INFO L93 Difference]: Finished difference Result 186140 states and 200886 transitions. [2018-10-24 16:57:54,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 16:57:54,871 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1179 [2018-10-24 16:57:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:57:54,999 INFO L225 Difference]: With dead ends: 186140 [2018-10-24 16:57:55,000 INFO L226 Difference]: Without dead ends: 85165 [2018-10-24 16:57:55,054 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1203 GetRequests, 1179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2018-10-24 16:57:55,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85165 states. [2018-10-24 16:57:55,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85165 to 80196. [2018-10-24 16:57:55,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80196 states. [2018-10-24 16:57:55,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80196 states to 80196 states and 85379 transitions. [2018-10-24 16:57:55,722 INFO L78 Accepts]: Start accepts. Automaton has 80196 states and 85379 transitions. Word has length 1179 [2018-10-24 16:57:55,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:57:55,722 INFO L481 AbstractCegarLoop]: Abstraction has 80196 states and 85379 transitions. [2018-10-24 16:57:55,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 16:57:55,723 INFO L276 IsEmpty]: Start isEmpty. Operand 80196 states and 85379 transitions. [2018-10-24 16:57:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1196 [2018-10-24 16:57:55,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:55,737 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:57:55,738 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:55,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:55,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1937957301, now seen corresponding path program 1 times [2018-10-24 16:57:55,738 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:55,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:55,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:55,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:55,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1457 backedges. 830 proven. 0 refuted. 0 times theorem prover too weak. 627 trivial. 0 not checked. [2018-10-24 16:57:57,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:57:57,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:57:57,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:57:57,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:57:57,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:57:57,912 INFO L87 Difference]: Start difference. First operand 80196 states and 85379 transitions. Second operand 4 states. [2018-10-24 16:58:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:04,023 INFO L93 Difference]: Finished difference Result 208772 states and 222240 transitions. [2018-10-24 16:58:04,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:04,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1195 [2018-10-24 16:58:04,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:04,180 INFO L225 Difference]: With dead ends: 208772 [2018-10-24 16:58:04,180 INFO L226 Difference]: Without dead ends: 129269 [2018-10-24 16:58:04,225 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 16:58:04,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129269 states. [2018-10-24 16:58:05,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129269 to 110600. [2018-10-24 16:58:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110600 states. [2018-10-24 16:58:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110600 states to 110600 states and 116259 transitions. [2018-10-24 16:58:05,253 INFO L78 Accepts]: Start accepts. Automaton has 110600 states and 116259 transitions. Word has length 1195 [2018-10-24 16:58:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:05,254 INFO L481 AbstractCegarLoop]: Abstraction has 110600 states and 116259 transitions. [2018-10-24 16:58:05,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 110600 states and 116259 transitions. [2018-10-24 16:58:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2018-10-24 16:58:05,271 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:05,271 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:58:05,272 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:05,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:05,272 INFO L82 PathProgramCache]: Analyzing trace with hash -65336071, now seen corresponding path program 1 times [2018-10-24 16:58:05,273 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:05,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:05,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:05,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:05,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:06,247 WARN L179 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-24 16:58:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1520 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2018-10-24 16:58:07,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:07,005 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:07,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:07,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:07,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:07,006 INFO L87 Difference]: Start difference. First operand 110600 states and 116259 transitions. Second operand 4 states. [2018-10-24 16:58:12,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:12,164 INFO L93 Difference]: Finished difference Result 221889 states and 233211 transitions. [2018-10-24 16:58:12,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:12,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1209 [2018-10-24 16:58:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:12,282 INFO L225 Difference]: With dead ends: 221889 [2018-10-24 16:58:12,283 INFO L226 Difference]: Without dead ends: 107827 [2018-10-24 16:58:12,343 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 16:58:12,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107827 states. [2018-10-24 16:58:13,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107827 to 105063. [2018-10-24 16:58:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105063 states. [2018-10-24 16:58:13,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105063 states to 105063 states and 109674 transitions. [2018-10-24 16:58:13,299 INFO L78 Accepts]: Start accepts. Automaton has 105063 states and 109674 transitions. Word has length 1209 [2018-10-24 16:58:13,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:13,299 INFO L481 AbstractCegarLoop]: Abstraction has 105063 states and 109674 transitions. [2018-10-24 16:58:13,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:13,300 INFO L276 IsEmpty]: Start isEmpty. Operand 105063 states and 109674 transitions. [2018-10-24 16:58:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2018-10-24 16:58:13,318 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:13,318 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, 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, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:13,319 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:13,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:13,319 INFO L82 PathProgramCache]: Analyzing trace with hash 485557004, now seen corresponding path program 1 times [2018-10-24 16:58:13,319 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:13,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:13,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:13,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:13,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:14,579 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 4 [2018-10-24 16:58:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 833 proven. 1055 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-10-24 16:58:17,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:17,161 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:58:17,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:17,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2018-10-24 16:58:18,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:58:18,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 16:58:18,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 16:58:18,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 16:58:18,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 16:58:18,250 INFO L87 Difference]: Start difference. First operand 105063 states and 109674 transitions. Second operand 12 states. [2018-10-24 16:58:35,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:35,111 INFO L93 Difference]: Finished difference Result 247398 states and 258356 transitions. [2018-10-24 16:58:35,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-24 16:58:35,111 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1245 [2018-10-24 16:58:35,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:35,258 INFO L225 Difference]: With dead ends: 247398 [2018-10-24 16:58:35,258 INFO L226 Difference]: Without dead ends: 143028 [2018-10-24 16:58:35,314 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1256 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-10-24 16:58:35,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143028 states. [2018-10-24 16:58:36,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143028 to 104371. [2018-10-24 16:58:36,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104371 states. [2018-10-24 16:58:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104371 states to 104371 states and 107471 transitions. [2018-10-24 16:58:36,951 INFO L78 Accepts]: Start accepts. Automaton has 104371 states and 107471 transitions. Word has length 1245 [2018-10-24 16:58:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:36,952 INFO L481 AbstractCegarLoop]: Abstraction has 104371 states and 107471 transitions. [2018-10-24 16:58:36,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 16:58:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 104371 states and 107471 transitions. [2018-10-24 16:58:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2018-10-24 16:58:36,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:36,973 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:36,974 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:36,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:36,974 INFO L82 PathProgramCache]: Analyzing trace with hash 553529017, now seen corresponding path program 1 times [2018-10-24 16:58:36,974 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:36,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:36,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:36,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:36,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:38,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2143 backedges. 1113 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2018-10-24 16:58:38,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:38,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:38,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:38,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:38,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:38,237 INFO L87 Difference]: Start difference. First operand 104371 states and 107471 transitions. Second operand 4 states. [2018-10-24 16:58:44,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:44,497 INFO L93 Difference]: Finished difference Result 222554 states and 229196 transitions. [2018-10-24 16:58:44,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:44,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1258 [2018-10-24 16:58:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:44,607 INFO L225 Difference]: With dead ends: 222554 [2018-10-24 16:58:44,607 INFO L226 Difference]: Without dead ends: 112650 [2018-10-24 16:58:44,656 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 5 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 16:58:44,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112650 states. [2018-10-24 16:58:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112650 to 110577. [2018-10-24 16:58:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110577 states. [2018-10-24 16:58:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110577 states to 110577 states and 112771 transitions. [2018-10-24 16:58:45,525 INFO L78 Accepts]: Start accepts. Automaton has 110577 states and 112771 transitions. Word has length 1258 [2018-10-24 16:58:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:45,526 INFO L481 AbstractCegarLoop]: Abstraction has 110577 states and 112771 transitions. [2018-10-24 16:58:45,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 110577 states and 112771 transitions. [2018-10-24 16:58:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1268 [2018-10-24 16:58:45,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:45,545 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:58:45,545 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:45,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:45,546 INFO L82 PathProgramCache]: Analyzing trace with hash 2033787139, now seen corresponding path program 1 times [2018-10-24 16:58:45,546 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:45,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:45,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:45,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:45,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:46,270 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:58:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 1098 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2018-10-24 16:58:47,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:47,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:47,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:47,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:47,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:47,320 INFO L87 Difference]: Start difference. First operand 110577 states and 112771 transitions. Second operand 4 states. [2018-10-24 16:58:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:51,894 INFO L93 Difference]: Finished difference Result 225298 states and 229769 transitions. [2018-10-24 16:58:51,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:51,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1267 [2018-10-24 16:58:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:52,017 INFO L225 Difference]: With dead ends: 225298 [2018-10-24 16:58:52,017 INFO L226 Difference]: Without dead ends: 115414 [2018-10-24 16:58:52,071 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:52,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115414 states. [2018-10-24 16:58:52,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115414 to 111268. [2018-10-24 16:58:52,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111268 states. [2018-10-24 16:58:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111268 states to 111268 states and 113353 transitions. [2018-10-24 16:58:53,052 INFO L78 Accepts]: Start accepts. Automaton has 111268 states and 113353 transitions. Word has length 1267 [2018-10-24 16:58:53,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:53,053 INFO L481 AbstractCegarLoop]: Abstraction has 111268 states and 113353 transitions. [2018-10-24 16:58:53,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:53,053 INFO L276 IsEmpty]: Start isEmpty. Operand 111268 states and 113353 transitions. [2018-10-24 16:58:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1304 [2018-10-24 16:58:53,068 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:53,068 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:58:53,069 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:53,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:53,069 INFO L82 PathProgramCache]: Analyzing trace with hash -874116444, now seen corresponding path program 1 times [2018-10-24 16:58:53,069 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:53,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:53,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:53,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:53,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:54,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 16:58:54,745 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:54,745 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:58:54,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:55,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 1033 proven. 157 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2018-10-24 16:58:58,496 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:58:58,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-10-24 16:58:58,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:58:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:58:58,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:58:58,498 INFO L87 Difference]: Start difference. First operand 111268 states and 113353 transitions. Second operand 7 states. [2018-10-24 16:59:12,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:12,897 INFO L93 Difference]: Finished difference Result 247410 states and 252234 transitions. [2018-10-24 16:59:12,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 16:59:12,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1303 [2018-10-24 16:59:12,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:13,074 INFO L225 Difference]: With dead ends: 247410 [2018-10-24 16:59:13,075 INFO L226 Difference]: Without dead ends: 134761 [2018-10-24 16:59:13,147 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1314 GetRequests, 1305 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:59:13,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134761 states. [2018-10-24 16:59:14,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134761 to 119559. [2018-10-24 16:59:14,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119559 states. [2018-10-24 16:59:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119559 states to 119559 states and 121781 transitions. [2018-10-24 16:59:14,896 INFO L78 Accepts]: Start accepts. Automaton has 119559 states and 121781 transitions. Word has length 1303 [2018-10-24 16:59:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:14,896 INFO L481 AbstractCegarLoop]: Abstraction has 119559 states and 121781 transitions. [2018-10-24 16:59:14,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:59:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 119559 states and 121781 transitions. [2018-10-24 16:59:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1317 [2018-10-24 16:59:14,912 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:14,913 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, 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, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:14,913 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:14,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:14,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1735722442, now seen corresponding path program 1 times [2018-10-24 16:59:14,914 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:14,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:14,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:14,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:14,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:15,509 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 16:59:15,939 WARN L179 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2018-10-24 16:59:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 1431 proven. 0 refuted. 0 times theorem prover too weak. 839 trivial. 0 not checked. [2018-10-24 16:59:17,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:59:17,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-24 16:59:17,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 16:59:17,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 16:59:17,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:59:17,562 INFO L87 Difference]: Start difference. First operand 119559 states and 121781 transitions. Second operand 9 states. Received shutdown request... [2018-10-24 16:59:21,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:59:21,999 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:59:22,005 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:59:22,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:59:22 BoogieIcfgContainer [2018-10-24 16:59:22,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:59:22,006 INFO L168 Benchmark]: Toolchain (without parser) took 229921.29 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 16:59:22,007 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 16:59:22,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1862.98 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 16:59:22,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 523.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -912.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:59:22,009 INFO L168 Benchmark]: Boogie Preprocessor took 247.70 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:59:22,010 INFO L168 Benchmark]: RCFGBuilder took 7425.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 526.4 MB). Peak memory consumption was 526.4 MB. Max. memory is 7.1 GB. [2018-10-24 16:59:22,011 INFO L168 Benchmark]: TraceAbstraction took 219855.17 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -906.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 16:59:22,016 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 1862.98 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 523.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -912.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 247.70 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7425.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 526.4 MB). Peak memory consumption was 526.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219855.17 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.5 GB in the end (delta: -906.7 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (119559states) and FLOYD_HOARE automaton (currently 7 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (74074 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 219.7s OverallTime, 17 OverallIterations, 8 TraceHistogramMax, 168.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8942 SDtfs, 68784 SDslu, 2589 SDs, 0 SdLazy, 117482 SolverSat, 16504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 129.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5615 GetRequests, 5472 SyntacticMatches, 16 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=119559occurred in iteration=16, 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: 11.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 127739 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 18.5s InterpolantComputationTime, 21603 NumberOfCodeBlocks, 21603 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 21580 ConstructedInterpolants, 0 QuantifiedInterpolants, 69100239 SizeOfPredicates, 4 NumberOfNonLiveVariables, 6323 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 24228/26857 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown