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/Problem12_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:21:44,145 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:21:44,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:21:44,167 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:21:44,167 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:21:44,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:21:44,171 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:21:44,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:21:44,182 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:21:44,183 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:21:44,184 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:21:44,184 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:21:44,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:21:44,189 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:21:44,193 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:21:44,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:21:44,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:21:44,199 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:21:44,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:21:44,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:21:44,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:21:44,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:21:44,216 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:21:44,218 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:21:44,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:21:44,220 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:21:44,221 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:21:44,222 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:21:44,223 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:21:44,224 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:21:44,225 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:21:44,225 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:21:44,226 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:21:44,228 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:21:44,229 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:21:44,230 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:21:44,231 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 [2018-10-26 21:21:44,257 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:21:44,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:21:44,258 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:21:44,259 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:21:44,260 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:21:44,260 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:21:44,260 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:21:44,262 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:21:44,262 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:21:44,262 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:21:44,262 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:21:44,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:21:44,263 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:21:44,263 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:21:44,263 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:21:44,263 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:21:44,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:21:44,265 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:21:44,265 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:21:44,265 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:21:44,265 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:21:44,266 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:21:44,266 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:21:44,266 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:21:44,267 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:21:44,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:21:44,267 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:21:44,267 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:21:44,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:21:44,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:21:44,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:21:44,350 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:21:44,350 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:21:44,351 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-10-26 21:21:44,416 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0d94ab188/6f9e246db89c49e5abc933f9a8fb6a56/FLAG73ef67022 [2018-10-26 21:21:45,194 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:21:45,195 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label54_true-unreach-call.c [2018-10-26 21:21:45,223 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0d94ab188/6f9e246db89c49e5abc933f9a8fb6a56/FLAG73ef67022 [2018-10-26 21:21:45,238 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0d94ab188/6f9e246db89c49e5abc933f9a8fb6a56 [2018-10-26 21:21:45,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:21:45,251 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:21:45,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:21:45,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:21:45,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:21:45,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:21:45" (1/1) ... [2018-10-26 21:21:45,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:45, skipping insertion in model container [2018-10-26 21:21:45,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:21:45" (1/1) ... [2018-10-26 21:21:45,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:21:45,421 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:21:46,693 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:21:46,698 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:21:47,319 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:21:47,358 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:21:47,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47 WrapperNode [2018-10-26 21:21:47,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:21:47,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:21:47,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:21:47,362 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:21:47,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:47,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:21:48,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:21:48,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:21:48,079 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:21:48,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (1/1) ... [2018-10-26 21:21:48,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:21:48,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:21:48,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:21:48,512 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:21:48,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (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 [2018-10-26 21:21:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:21:48,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:21:48,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:21:57,426 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:21:57,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:57 BoogieIcfgContainer [2018-10-26 21:21:57,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:21:57,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:21:57,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:21:57,432 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:21:57,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:21:45" (1/3) ... [2018-10-26 21:21:57,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c0ec4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:21:57, skipping insertion in model container [2018-10-26 21:21:57,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:21:47" (2/3) ... [2018-10-26 21:21:57,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c0ec4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:21:57, skipping insertion in model container [2018-10-26 21:21:57,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:21:57" (3/3) ... [2018-10-26 21:21:57,443 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label54_true-unreach-call.c [2018-10-26 21:21:57,457 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:21:57,467 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:21:57,487 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:21:57,537 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:21:57,538 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:21:57,539 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:21:57,539 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:21:57,539 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:21:57,539 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:21:57,539 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:21:57,539 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:21:57,539 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:21:57,581 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-26 21:21:57,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 21:21:57,590 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:21:57,591 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] [2018-10-26 21:21:57,594 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:21:57,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:21:57,600 INFO L82 PathProgramCache]: Analyzing trace with hash 646480794, now seen corresponding path program 1 times [2018-10-26 21:21:57,603 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:21:57,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:21:57,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:21:57,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:21:57,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:21:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:21:58,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:21:58,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:21:58,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:21:58,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:21:58,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:21:58,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:21:58,046 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-26 21:22:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:22:10,455 INFO L93 Difference]: Finished difference Result 3162 states and 6150 transitions. [2018-10-26 21:22:10,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:22:10,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-10-26 21:22:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:22:10,503 INFO L225 Difference]: With dead ends: 3162 [2018-10-26 21:22:10,503 INFO L226 Difference]: Without dead ends: 2336 [2018-10-26 21:22:10,518 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:22:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-10-26 21:22:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2018-10-26 21:22:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-10-26 21:22:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3769 transitions. [2018-10-26 21:22:10,688 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3769 transitions. Word has length 34 [2018-10-26 21:22:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:22:10,688 INFO L481 AbstractCegarLoop]: Abstraction has 2336 states and 3769 transitions. [2018-10-26 21:22:10,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:22:10,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3769 transitions. [2018-10-26 21:22:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-26 21:22:10,694 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:22:10,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:22:10,695 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:22:10,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:22:10,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1748382567, now seen corresponding path program 1 times [2018-10-26 21:22:10,695 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:22:10,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:22:10,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:10,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:22:10,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:22:11,250 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-26 21:22:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:22:11,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:22:11,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:22:11,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:22:11,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:22:11,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:22:11,487 INFO L87 Difference]: Start difference. First operand 2336 states and 3769 transitions. Second operand 6 states. [2018-10-26 21:22:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:22:29,888 INFO L93 Difference]: Finished difference Result 9183 states and 14416 transitions. [2018-10-26 21:22:29,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:22:29,888 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-26 21:22:29,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:22:29,924 INFO L225 Difference]: With dead ends: 9183 [2018-10-26 21:22:29,924 INFO L226 Difference]: Without dead ends: 6849 [2018-10-26 21:22:29,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:22:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6849 states. [2018-10-26 21:22:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6849 to 6849. [2018-10-26 21:22:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6849 states. [2018-10-26 21:22:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6849 states to 6849 states and 9754 transitions. [2018-10-26 21:22:30,070 INFO L78 Accepts]: Start accepts. Automaton has 6849 states and 9754 transitions. Word has length 111 [2018-10-26 21:22:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:22:30,070 INFO L481 AbstractCegarLoop]: Abstraction has 6849 states and 9754 transitions. [2018-10-26 21:22:30,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:22:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 6849 states and 9754 transitions. [2018-10-26 21:22:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-26 21:22:30,084 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:22:30,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:22:30,084 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:22:30,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:22:30,086 INFO L82 PathProgramCache]: Analyzing trace with hash -766593584, now seen corresponding path program 1 times [2018-10-26 21:22:30,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:22:30,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:22:30,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:30,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:22:30,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:22:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:22:30,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:22:30,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:22:30,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:22:30,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:22:30,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:22:30,322 INFO L87 Difference]: Start difference. First operand 6849 states and 9754 transitions. Second operand 4 states. [2018-10-26 21:22:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:22:40,727 INFO L93 Difference]: Finished difference Result 22720 states and 33366 transitions. [2018-10-26 21:22:40,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:22:40,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 180 [2018-10-26 21:22:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:22:40,808 INFO L225 Difference]: With dead ends: 22720 [2018-10-26 21:22:40,808 INFO L226 Difference]: Without dead ends: 15873 [2018-10-26 21:22:40,823 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:22:40,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15873 states. [2018-10-26 21:22:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15873 to 15873. [2018-10-26 21:22:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15873 states. [2018-10-26 21:22:41,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15873 states to 15873 states and 22642 transitions. [2018-10-26 21:22:41,142 INFO L78 Accepts]: Start accepts. Automaton has 15873 states and 22642 transitions. Word has length 180 [2018-10-26 21:22:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:22:41,143 INFO L481 AbstractCegarLoop]: Abstraction has 15873 states and 22642 transitions. [2018-10-26 21:22:41,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:22:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 15873 states and 22642 transitions. [2018-10-26 21:22:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-26 21:22:41,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:22:41,150 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:22:41,151 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:22:41,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:22:41,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1827343801, now seen corresponding path program 1 times [2018-10-26 21:22:41,151 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:22:41,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:22:41,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:41,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:22:41,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:22:41,661 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-26 21:22:41,968 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 129 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:22:41,968 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:22:41,968 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 [2018-10-26 21:22:41,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:22:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:22:42,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:22:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:22:42,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:22:42,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-26 21:22:42,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:22:42,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:22:42,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:22:42,342 INFO L87 Difference]: Start difference. First operand 15873 states and 22642 transitions. Second operand 6 states. [2018-10-26 21:22:59,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:22:59,216 INFO L93 Difference]: Finished difference Result 54336 states and 74477 transitions. [2018-10-26 21:22:59,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 21:22:59,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2018-10-26 21:22:59,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:22:59,288 INFO L225 Difference]: With dead ends: 54336 [2018-10-26 21:22:59,288 INFO L226 Difference]: Without dead ends: 35453 [2018-10-26 21:22:59,313 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:22:59,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35453 states. [2018-10-26 21:22:59,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35453 to 24895. [2018-10-26 21:22:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24895 states. [2018-10-26 21:22:59,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24895 states to 24895 states and 30992 transitions. [2018-10-26 21:22:59,860 INFO L78 Accepts]: Start accepts. Automaton has 24895 states and 30992 transitions. Word has length 216 [2018-10-26 21:22:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:22:59,861 INFO L481 AbstractCegarLoop]: Abstraction has 24895 states and 30992 transitions. [2018-10-26 21:22:59,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:22:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 24895 states and 30992 transitions. [2018-10-26 21:22:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-26 21:22:59,867 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:22:59,868 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:22:59,868 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:22:59,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:22:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1916792086, now seen corresponding path program 1 times [2018-10-26 21:22:59,869 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:22:59,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:22:59,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:59,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:22:59,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:22:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:00,352 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:23:00,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:23:00,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:23:00,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:23:00,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:23:00,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:23:00,354 INFO L87 Difference]: Start difference. First operand 24895 states and 30992 transitions. Second operand 4 states. [2018-10-26 21:23:09,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:23:09,423 INFO L93 Difference]: Finished difference Result 49788 states and 61982 transitions. [2018-10-26 21:23:09,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:23:09,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 286 [2018-10-26 21:23:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:23:09,467 INFO L225 Difference]: With dead ends: 49788 [2018-10-26 21:23:09,467 INFO L226 Difference]: Without dead ends: 24895 [2018-10-26 21:23:09,496 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 [2018-10-26 21:23:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24895 states. [2018-10-26 21:23:09,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24895 to 24895. [2018-10-26 21:23:09,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24895 states. [2018-10-26 21:23:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24895 states to 24895 states and 30239 transitions. [2018-10-26 21:23:09,816 INFO L78 Accepts]: Start accepts. Automaton has 24895 states and 30239 transitions. Word has length 286 [2018-10-26 21:23:09,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:23:09,817 INFO L481 AbstractCegarLoop]: Abstraction has 24895 states and 30239 transitions. [2018-10-26 21:23:09,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:23:09,817 INFO L276 IsEmpty]: Start isEmpty. Operand 24895 states and 30239 transitions. [2018-10-26 21:23:09,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-10-26 21:23:09,825 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:23:09,826 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:23:09,826 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:23:09,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:23:09,827 INFO L82 PathProgramCache]: Analyzing trace with hash 1846820896, now seen corresponding path program 1 times [2018-10-26 21:23:09,827 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:23:09,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:23:09,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:09,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:09,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:10,534 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-26 21:23:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 64 proven. 108 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:23:10,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:23:10,876 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 [2018-10-26 21:23:10,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:10,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:23:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 105 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:23:11,297 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:23:11,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 7 [2018-10-26 21:23:11,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 21:23:11,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 21:23:11,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-26 21:23:11,299 INFO L87 Difference]: Start difference. First operand 24895 states and 30239 transitions. Second operand 8 states. [2018-10-26 21:23:29,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:23:29,319 INFO L93 Difference]: Finished difference Result 79116 states and 98779 transitions. [2018-10-26 21:23:29,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 21:23:29,320 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 290 [2018-10-26 21:23:29,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:23:29,416 INFO L225 Difference]: With dead ends: 79116 [2018-10-26 21:23:29,417 INFO L226 Difference]: Without dead ends: 51213 [2018-10-26 21:23:29,442 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2018-10-26 21:23:29,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51213 states. [2018-10-26 21:23:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51213 to 45197. [2018-10-26 21:23:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45197 states. [2018-10-26 21:23:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45197 states to 45197 states and 53914 transitions. [2018-10-26 21:23:29,951 INFO L78 Accepts]: Start accepts. Automaton has 45197 states and 53914 transitions. Word has length 290 [2018-10-26 21:23:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:23:29,952 INFO L481 AbstractCegarLoop]: Abstraction has 45197 states and 53914 transitions. [2018-10-26 21:23:29,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 21:23:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 45197 states and 53914 transitions. [2018-10-26 21:23:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-10-26 21:23:29,959 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:23:29,960 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:23:29,960 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:23:29,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:23:29,961 INFO L82 PathProgramCache]: Analyzing trace with hash -994629629, now seen corresponding path program 1 times [2018-10-26 21:23:29,961 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:23:29,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:23:29,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:29,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:29,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:30,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-26 21:23:30,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:23:30,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:23:30,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:23:30,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:23:30,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:23:30,400 INFO L87 Difference]: Start difference. First operand 45197 states and 53914 transitions. Second operand 3 states. [2018-10-26 21:23:35,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:23:35,808 INFO L93 Difference]: Finished difference Result 114456 states and 138080 transitions. [2018-10-26 21:23:35,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:23:35,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2018-10-26 21:23:35,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:23:35,890 INFO L225 Difference]: With dead ends: 114456 [2018-10-26 21:23:35,890 INFO L226 Difference]: Without dead ends: 70013 [2018-10-26 21:23:35,926 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:23:35,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70013 states. [2018-10-26 21:23:36,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70013 to 70013. [2018-10-26 21:23:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70013 states. [2018-10-26 21:23:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70013 states to 70013 states and 83485 transitions. [2018-10-26 21:23:36,962 INFO L78 Accepts]: Start accepts. Automaton has 70013 states and 83485 transitions. Word has length 313 [2018-10-26 21:23:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:23:36,962 INFO L481 AbstractCegarLoop]: Abstraction has 70013 states and 83485 transitions. [2018-10-26 21:23:36,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:23:36,963 INFO L276 IsEmpty]: Start isEmpty. Operand 70013 states and 83485 transitions. [2018-10-26 21:23:37,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2018-10-26 21:23:37,000 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:23:37,001 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:23:37,001 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:23:37,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:23:37,001 INFO L82 PathProgramCache]: Analyzing trace with hash 484519548, now seen corresponding path program 1 times [2018-10-26 21:23:37,002 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:23:37,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:23:37,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:37,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:37,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 95 proven. 8 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-10-26 21:23:37,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:23:37,988 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 [2018-10-26 21:23:37,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:38,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:23:38,476 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-26 21:23:38,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:23:38,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-26 21:23:38,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:23:38,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:23:38,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:23:38,510 INFO L87 Difference]: Start difference. First operand 70013 states and 83485 transitions. Second operand 4 states. [2018-10-26 21:23:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:23:47,472 INFO L93 Difference]: Finished difference Result 204012 states and 246625 transitions. [2018-10-26 21:23:47,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:23:47,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 605 [2018-10-26 21:23:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:23:47,630 INFO L225 Difference]: With dead ends: 204012 [2018-10-26 21:23:47,630 INFO L226 Difference]: Without dead ends: 134753 [2018-10-26 21:23:47,687 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 605 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:23:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134753 states. [2018-10-26 21:23:48,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134753 to 94077. [2018-10-26 21:23:48,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94077 states. [2018-10-26 21:23:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94077 states to 94077 states and 111331 transitions. [2018-10-26 21:23:48,694 INFO L78 Accepts]: Start accepts. Automaton has 94077 states and 111331 transitions. Word has length 605 [2018-10-26 21:23:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:23:48,695 INFO L481 AbstractCegarLoop]: Abstraction has 94077 states and 111331 transitions. [2018-10-26 21:23:48,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:23:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 94077 states and 111331 transitions. [2018-10-26 21:23:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2018-10-26 21:23:48,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:23:48,733 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:23:48,733 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:23:48,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:23:48,734 INFO L82 PathProgramCache]: Analyzing trace with hash 421223414, now seen corresponding path program 1 times [2018-10-26 21:23:48,734 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:23:48,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:23:48,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:48,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:23:48,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:23:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:23:50,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 900 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-26 21:23:50,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:23:50,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:23:50,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:23:50,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:23:50,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:23:50,119 INFO L87 Difference]: Start difference. First operand 94077 states and 111331 transitions. Second operand 4 states. [2018-10-26 21:23:58,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:23:58,010 INFO L93 Difference]: Finished difference Result 227256 states and 268250 transitions. [2018-10-26 21:23:58,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:23:58,010 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 647 [2018-10-26 21:23:58,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:23:58,151 INFO L225 Difference]: With dead ends: 227256 [2018-10-26 21:23:58,151 INFO L226 Difference]: Without dead ends: 133933 [2018-10-26 21:23:58,211 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:23:58,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133933 states. [2018-10-26 21:24:00,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133933 to 133181. [2018-10-26 21:24:00,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133181 states. [2018-10-26 21:24:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133181 states to 133181 states and 149907 transitions. [2018-10-26 21:24:00,466 INFO L78 Accepts]: Start accepts. Automaton has 133181 states and 149907 transitions. Word has length 647 [2018-10-26 21:24:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:24:00,466 INFO L481 AbstractCegarLoop]: Abstraction has 133181 states and 149907 transitions. [2018-10-26 21:24:00,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:24:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 133181 states and 149907 transitions. [2018-10-26 21:24:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2018-10-26 21:24:00,499 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:24:00,499 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:24:00,499 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:24:00,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:24:00,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1818866847, now seen corresponding path program 1 times [2018-10-26 21:24:00,500 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:24:00,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:24:00,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:00,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:24:00,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:24:01,754 INFO L134 CoverageAnalysis]: Checked inductivity of 775 backedges. 481 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2018-10-26 21:24:01,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:24:01,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 21:24:01,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:24:01,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:24:01,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:24:01,756 INFO L87 Difference]: Start difference. First operand 133181 states and 149907 transitions. Second operand 7 states. [2018-10-26 21:24:16,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:24:16,626 INFO L93 Difference]: Finished difference Result 361492 states and 405284 transitions. [2018-10-26 21:24:16,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:24:16,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 678 [2018-10-26 21:24:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:24:16,887 INFO L225 Difference]: With dead ends: 361492 [2018-10-26 21:24:16,888 INFO L226 Difference]: Without dead ends: 229065 [2018-10-26 21:24:16,974 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:24:17,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229065 states. [2018-10-26 21:24:19,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229065 to 165541. [2018-10-26 21:24:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165541 states. [2018-10-26 21:24:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165541 states to 165541 states and 184367 transitions. [2018-10-26 21:24:19,747 INFO L78 Accepts]: Start accepts. Automaton has 165541 states and 184367 transitions. Word has length 678 [2018-10-26 21:24:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:24:19,748 INFO L481 AbstractCegarLoop]: Abstraction has 165541 states and 184367 transitions. [2018-10-26 21:24:19,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:24:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 165541 states and 184367 transitions. [2018-10-26 21:24:19,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2018-10-26 21:24:19,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:24:19,780 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2018-10-26 21:24:19,780 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:24:19,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:24:19,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1862861537, now seen corresponding path program 1 times [2018-10-26 21:24:19,781 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:24:19,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:24:19,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:19,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:24:19,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:24:20,639 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-10-26 21:24:20,885 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2018-10-26 21:24:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 675 proven. 12 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-10-26 21:24:21,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:24:21,354 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 [2018-10-26 21:24:21,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:24:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:24:21,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:24:23,408 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2018-10-26 21:24:23,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:24:23,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-10-26 21:24:23,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 21:24:23,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 21:24:23,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2018-10-26 21:24:23,450 INFO L87 Difference]: Start difference. First operand 165541 states and 184367 transitions. Second operand 10 states. [2018-10-26 21:24:49,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:24:49,111 INFO L93 Difference]: Finished difference Result 411246 states and 455473 transitions. [2018-10-26 21:24:49,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-26 21:24:49,112 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 685 [2018-10-26 21:24:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:24:49,339 INFO L225 Difference]: With dead ends: 411246 [2018-10-26 21:24:49,340 INFO L226 Difference]: Without dead ends: 195784 [2018-10-26 21:24:49,423 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 692 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=136, Invalid=206, Unknown=0, NotChecked=0, Total=342 [2018-10-26 21:24:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195784 states. [2018-10-26 21:24:51,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195784 to 126619. [2018-10-26 21:24:51,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126619 states. [2018-10-26 21:24:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126619 states to 126619 states and 136879 transitions. [2018-10-26 21:24:51,673 INFO L78 Accepts]: Start accepts. Automaton has 126619 states and 136879 transitions. Word has length 685 [2018-10-26 21:24:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:24:51,673 INFO L481 AbstractCegarLoop]: Abstraction has 126619 states and 136879 transitions. [2018-10-26 21:24:51,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 21:24:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand 126619 states and 136879 transitions. [2018-10-26 21:24:51,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2018-10-26 21:24:51,696 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:24:51,697 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:24:51,697 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:24:51,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:24:51,697 INFO L82 PathProgramCache]: Analyzing trace with hash -370549071, now seen corresponding path program 1 times [2018-10-26 21:24:51,697 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:24:51,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:24:51,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:51,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:24:51,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:24:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:24:52,779 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2018-10-26 21:24:52,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:24:52,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:24:52,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:24:52,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:24:52,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:24:52,780 INFO L87 Difference]: Start difference. First operand 126619 states and 136879 transitions. Second operand 4 states. [2018-10-26 21:25:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:25:01,738 INFO L93 Difference]: Finished difference Result 275796 states and 297743 transitions. [2018-10-26 21:25:01,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:25:01,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 709 [2018-10-26 21:25:01,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:25:01,949 INFO L225 Difference]: With dead ends: 275796 [2018-10-26 21:25:01,950 INFO L226 Difference]: Without dead ends: 149931 [2018-10-26 21:25:02,015 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 [2018-10-26 21:25:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149931 states. [2018-10-26 21:25:03,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149931 to 143915. [2018-10-26 21:25:03,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143915 states. [2018-10-26 21:25:03,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143915 states to 143915 states and 152675 transitions. [2018-10-26 21:25:03,392 INFO L78 Accepts]: Start accepts. Automaton has 143915 states and 152675 transitions. Word has length 709 [2018-10-26 21:25:03,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:25:03,392 INFO L481 AbstractCegarLoop]: Abstraction has 143915 states and 152675 transitions. [2018-10-26 21:25:03,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:25:03,393 INFO L276 IsEmpty]: Start isEmpty. Operand 143915 states and 152675 transitions. [2018-10-26 21:25:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2018-10-26 21:25:03,462 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:25:03,463 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:25:03,463 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:25:03,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:25:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1070664920, now seen corresponding path program 1 times [2018-10-26 21:25:03,464 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:25:03,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:25:03,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:25:03,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:25:03,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:25:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:25:07,906 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2018-10-26 21:25:07,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:25:07,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:25:07,908 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:25:07,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:25:07,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:25:07,908 INFO L87 Difference]: Start difference. First operand 143915 states and 152675 transitions. Second operand 3 states. [2018-10-26 21:25:12,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:25:12,662 INFO L93 Difference]: Finished difference Result 276588 states and 293486 transitions. [2018-10-26 21:25:12,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:25:12,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 982 [2018-10-26 21:25:12,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:25:12,664 INFO L225 Difference]: With dead ends: 276588 [2018-10-26 21:25:12,664 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:25:12,741 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:25:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:25:12,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:25:12,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:25:12,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:25:12,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 982 [2018-10-26 21:25:12,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:25:12,742 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:25:12,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:25:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:25:12,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:25:12,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:25:12,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:12,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:12,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:13,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:13,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:13,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:13,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:13,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:14,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,474 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:15,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,262 WARN L179 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 1109 DAG size of output: 664 [2018-10-26 21:25:16,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:16,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:17,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,026 WARN L179 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 808 DAG size of output: 498 [2018-10-26 21:25:18,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:18,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:19,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,224 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,692 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,935 WARN L179 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 1206 DAG size of output: 666 [2018-10-26 21:25:20,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:20,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,651 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,690 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:21,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,071 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,620 WARN L179 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 997 DAG size of output: 608 [2018-10-26 21:25:22,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:22,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,376 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-26 21:25:23,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-26 21:25:23,458 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-26 21:25:23,459 INFO L168 Benchmark]: Toolchain (without parser) took 218209.08 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 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 1.7 GB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,461 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 21:25:23,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2107.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 717.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,465 INFO L168 Benchmark]: Boogie Preprocessor took 432.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,465 INFO L168 Benchmark]: RCFGBuilder took 8916.04 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 215.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -176.2 MB). Peak memory consumption was 631.9 MB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,467 INFO L168 Benchmark]: TraceAbstraction took 206030.38 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -178.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-26 21:25:23,473 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2107.32 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 717.36 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 432.35 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8916.04 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 215.5 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -176.2 MB). Peak memory consumption was 631.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206030.38 ms. Allocated memory was 2.6 GB in the beginning and 3.9 GB in the end (delta: 1.3 GB). Free memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: -178.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1178. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown