java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label45_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 19:14:25,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 19:14:25,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 19:14:25,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 19:14:25,273 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 19:14:25,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 19:14:25,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 19:14:25,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 19:14:25,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 19:14:25,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 19:14:25,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 19:14:25,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 19:14:25,284 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 19:14:25,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 19:14:25,288 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 19:14:25,290 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 19:14:25,290 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 19:14:25,295 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 19:14:25,301 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 19:14:25,303 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 19:14:25,304 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 19:14:25,308 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 19:14:25,314 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 19:14:25,314 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 19:14:25,314 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 19:14:25,316 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 19:14:25,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 19:14:25,317 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 19:14:25,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 19:14:25,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 19:14:25,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 19:14:25,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-06 19:14:25,323 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 19:14:25,353 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 19:14:25,353 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 19:14:25,354 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 19:14:25,355 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 19:14:25,355 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 19:14:25,355 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 19:14:25,356 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 19:14:25,356 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 19:14:25,356 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 19:14:25,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 19:14:25,356 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 19:14:25,357 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 19:14:25,357 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 19:14:25,357 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 19:14:25,357 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 19:14:25,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 19:14:25,358 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 19:14:25,358 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 19:14:25,358 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 19:14:25,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 19:14:25,358 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 19:14:25,359 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 19:14:25,360 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 19:14:25,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 19:14:25,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 19:14:25,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 19:14:25,444 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 19:14:25,444 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 19:14:25,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label45_false-unreach-call.c [2018-11-06 19:14:25,505 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3583df/eed96ca4b560416196bc1cf97116b0f7/FLAG27710349a [2018-11-06 19:14:26,290 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 19:14:26,291 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label45_false-unreach-call.c [2018-11-06 19:14:26,326 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3583df/eed96ca4b560416196bc1cf97116b0f7/FLAG27710349a [2018-11-06 19:14:26,343 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3583df/eed96ca4b560416196bc1cf97116b0f7 [2018-11-06 19:14:26,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 19:14:26,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 19:14:26,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 19:14:26,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 19:14:26,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 19:14:26,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:14:26" (1/1) ... [2018-11-06 19:14:26,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89bea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:26, skipping insertion in model container [2018-11-06 19:14:26,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:14:26" (1/1) ... [2018-11-06 19:14:26,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 19:14:26,595 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 19:14:28,104 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:14:28,109 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 19:14:28,882 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 19:14:28,927 INFO L193 MainTranslator]: Completed translation [2018-11-06 19:14:28,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28 WrapperNode [2018-11-06 19:14:28,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 19:14:28,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 19:14:28,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 19:14:28,931 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 19:14:28,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:29,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:29,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 19:14:29,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 19:14:29,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 19:14:29,829 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 19:14:29,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:29,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:29,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:29,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:30,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:30,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:30,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... [2018-11-06 19:14:30,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 19:14:30,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 19:14:30,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 19:14:30,298 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 19:14:30,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:14:30,377 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 19:14:30,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 19:14:30,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 19:14:41,285 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 19:14:41,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:14:41 BoogieIcfgContainer [2018-11-06 19:14:41,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 19:14:41,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 19:14:41,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 19:14:41,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 19:14:41,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:14:26" (1/3) ... [2018-11-06 19:14:41,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fc024f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:14:41, skipping insertion in model container [2018-11-06 19:14:41,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:14:28" (2/3) ... [2018-11-06 19:14:41,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fc024f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:14:41, skipping insertion in model container [2018-11-06 19:14:41,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:14:41" (3/3) ... [2018-11-06 19:14:41,295 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label45_false-unreach-call.c [2018-11-06 19:14:41,306 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 19:14:41,317 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 19:14:41,336 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 19:14:41,388 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 19:14:41,389 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 19:14:41,389 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 19:14:41,390 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 19:14:41,390 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 19:14:41,390 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 19:14:41,390 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 19:14:41,390 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 19:14:41,390 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 19:14:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-11-06 19:14:41,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-06 19:14:41,440 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:14:41,441 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:14:41,444 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:14:41,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:14:41,451 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-11-06 19:14:41,453 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:14:41,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:14:41,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:14:41,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:14:41,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:14:41,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:14:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:14:41,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:14:41,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:14:41,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:14:41,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:14:41,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:14:41,655 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 3 states. [2018-11-06 19:14:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:14:50,445 INFO L93 Difference]: Finished difference Result 3038 states and 5646 transitions. [2018-11-06 19:14:50,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:14:50,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-06 19:14:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:14:50,484 INFO L225 Difference]: With dead ends: 3038 [2018-11-06 19:14:50,485 INFO L226 Difference]: Without dead ends: 1935 [2018-11-06 19:14:50,494 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:14:50,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2018-11-06 19:14:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1921. [2018-11-06 19:14:50,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2018-11-06 19:14:50,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 3004 transitions. [2018-11-06 19:14:50,638 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 3004 transitions. Word has length 8 [2018-11-06 19:14:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:14:50,638 INFO L480 AbstractCegarLoop]: Abstraction has 1921 states and 3004 transitions. [2018-11-06 19:14:50,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:14:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 3004 transitions. [2018-11-06 19:14:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-06 19:14:50,641 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:14:50,642 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:14:50,642 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:14:50,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:14:50,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1966810658, now seen corresponding path program 1 times [2018-11-06 19:14:50,643 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:14:50,643 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:14:50,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:14:50,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:14:50,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:14:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:14:51,838 WARN L179 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-11-06 19:14:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:14:51,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:14:51,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:14:51,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:14:51,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:14:51,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:14:51,997 INFO L87 Difference]: Start difference. First operand 1921 states and 3004 transitions. Second operand 5 states. [2018-11-06 19:15:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:15:07,475 INFO L93 Difference]: Finished difference Result 7027 states and 10524 transitions. [2018-11-06 19:15:07,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:15:07,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 81 [2018-11-06 19:15:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:15:07,505 INFO L225 Difference]: With dead ends: 7027 [2018-11-06 19:15:07,506 INFO L226 Difference]: Without dead ends: 5108 [2018-11-06 19:15:07,511 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:15:07,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5108 states. [2018-11-06 19:15:07,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5108 to 5107. [2018-11-06 19:15:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5107 states. [2018-11-06 19:15:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5107 states to 5107 states and 6806 transitions. [2018-11-06 19:15:07,621 INFO L78 Accepts]: Start accepts. Automaton has 5107 states and 6806 transitions. Word has length 81 [2018-11-06 19:15:07,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:15:07,622 INFO L480 AbstractCegarLoop]: Abstraction has 5107 states and 6806 transitions. [2018-11-06 19:15:07,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:15:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5107 states and 6806 transitions. [2018-11-06 19:15:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-06 19:15:07,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:15:07,630 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:15:07,630 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:15:07,631 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:15:07,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1519502355, now seen corresponding path program 1 times [2018-11-06 19:15:07,631 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:15:07,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:15:07,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:07,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:07,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-06 19:15:07,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:15:07,922 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:15:07,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:08,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:15:08,064 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:15:08,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 19:15:08,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-06 19:15:08,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:15:08,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:15:08,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:15:08,096 INFO L87 Difference]: Start difference. First operand 5107 states and 6806 transitions. Second operand 4 states. [2018-11-06 19:15:18,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:15:18,606 INFO L93 Difference]: Finished difference Result 16577 states and 23048 transitions. [2018-11-06 19:15:18,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:15:18,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-11-06 19:15:18,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:15:18,670 INFO L225 Difference]: With dead ends: 16577 [2018-11-06 19:15:18,670 INFO L226 Difference]: Without dead ends: 12260 [2018-11-06 19:15:18,679 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:15:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12260 states. [2018-11-06 19:15:18,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12260 to 8276. [2018-11-06 19:15:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8276 states. [2018-11-06 19:15:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8276 states to 8276 states and 10661 transitions. [2018-11-06 19:15:18,875 INFO L78 Accepts]: Start accepts. Automaton has 8276 states and 10661 transitions. Word has length 177 [2018-11-06 19:15:18,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:15:18,876 INFO L480 AbstractCegarLoop]: Abstraction has 8276 states and 10661 transitions. [2018-11-06 19:15:18,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:15:18,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8276 states and 10661 transitions. [2018-11-06 19:15:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-11-06 19:15:18,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:15:18,888 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:15:18,893 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:15:18,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:15:18,893 INFO L82 PathProgramCache]: Analyzing trace with hash 234639946, now seen corresponding path program 1 times [2018-11-06 19:15:18,893 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:15:18,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:15:18,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:18,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:18,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 19:15:19,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:15:19,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:15:19,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:15:19,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:15:19,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:15:19,321 INFO L87 Difference]: Start difference. First operand 8276 states and 10661 transitions. Second operand 5 states. [2018-11-06 19:15:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:15:34,130 INFO L93 Difference]: Finished difference Result 35769 states and 47453 transitions. [2018-11-06 19:15:34,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:15:34,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2018-11-06 19:15:34,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:15:34,216 INFO L225 Difference]: With dead ends: 35769 [2018-11-06 19:15:34,216 INFO L226 Difference]: Without dead ends: 28283 [2018-11-06 19:15:34,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:15:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28283 states. [2018-11-06 19:15:34,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28283 to 28107. [2018-11-06 19:15:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28107 states. [2018-11-06 19:15:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28107 states to 28107 states and 34886 transitions. [2018-11-06 19:15:34,636 INFO L78 Accepts]: Start accepts. Automaton has 28107 states and 34886 transitions. Word has length 191 [2018-11-06 19:15:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:15:34,636 INFO L480 AbstractCegarLoop]: Abstraction has 28107 states and 34886 transitions. [2018-11-06 19:15:34,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:15:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 28107 states and 34886 transitions. [2018-11-06 19:15:34,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-11-06 19:15:34,640 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:15:34,640 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:15:34,640 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:15:34,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:15:34,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1170448595, now seen corresponding path program 1 times [2018-11-06 19:15:34,641 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:15:34,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:15:34,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:34,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:34,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-06 19:15:34,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:15:34,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:15:34,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:15:34,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:15:34,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:15:34,857 INFO L87 Difference]: Start difference. First operand 28107 states and 34886 transitions. Second operand 3 states. [2018-11-06 19:15:40,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:15:40,700 INFO L93 Difference]: Finished difference Result 79846 states and 99837 transitions. [2018-11-06 19:15:40,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:15:40,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2018-11-06 19:15:40,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:15:40,793 INFO L225 Difference]: With dead ends: 79846 [2018-11-06 19:15:40,793 INFO L226 Difference]: Without dead ends: 52529 [2018-11-06 19:15:40,831 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:15:40,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52529 states. [2018-11-06 19:15:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52529 to 50159. [2018-11-06 19:15:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50159 states. [2018-11-06 19:15:41,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50159 states to 50159 states and 59198 transitions. [2018-11-06 19:15:41,507 INFO L78 Accepts]: Start accepts. Automaton has 50159 states and 59198 transitions. Word has length 207 [2018-11-06 19:15:41,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:15:41,508 INFO L480 AbstractCegarLoop]: Abstraction has 50159 states and 59198 transitions. [2018-11-06 19:15:41,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:15:41,509 INFO L276 IsEmpty]: Start isEmpty. Operand 50159 states and 59198 transitions. [2018-11-06 19:15:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-11-06 19:15:41,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:15:41,519 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-11-06 19:15:41,519 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:15:41,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:15:41,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1978878205, now seen corresponding path program 1 times [2018-11-06 19:15:41,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:15:41,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:15:41,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:41,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:41,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:15:42,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:15:42,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:15:42,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:15:42,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:15:42,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:15:42,622 INFO L87 Difference]: Start difference. First operand 50159 states and 59198 transitions. Second operand 4 states. [2018-11-06 19:15:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:15:53,052 INFO L93 Difference]: Finished difference Result 144488 states and 175809 transitions. [2018-11-06 19:15:53,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:15:53,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 309 [2018-11-06 19:15:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:15:53,236 INFO L225 Difference]: With dead ends: 144488 [2018-11-06 19:15:53,236 INFO L226 Difference]: Without dead ends: 95119 [2018-11-06 19:15:53,296 INFO L604 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 [2018-11-06 19:15:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95119 states. [2018-11-06 19:15:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95119 to 90337. [2018-11-06 19:15:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90337 states. [2018-11-06 19:15:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90337 states to 90337 states and 106598 transitions. [2018-11-06 19:15:54,769 INFO L78 Accepts]: Start accepts. Automaton has 90337 states and 106598 transitions. Word has length 309 [2018-11-06 19:15:54,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:15:54,770 INFO L480 AbstractCegarLoop]: Abstraction has 90337 states and 106598 transitions. [2018-11-06 19:15:54,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:15:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 90337 states and 106598 transitions. [2018-11-06 19:15:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-11-06 19:15:54,779 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:15:54,780 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:15:54,780 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:15:54,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:15:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash 658310034, now seen corresponding path program 1 times [2018-11-06 19:15:54,781 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:15:54,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:15:54,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:54,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:15:54,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:15:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:15:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:15:55,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:15:55,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:15:55,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:15:55,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:15:55,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:15:55,027 INFO L87 Difference]: Start difference. First operand 90337 states and 106598 transitions. Second operand 3 states. [2018-11-06 19:16:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:16:00,393 INFO L93 Difference]: Finished difference Result 180651 states and 213027 transitions. [2018-11-06 19:16:00,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:16:00,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 328 [2018-11-06 19:16:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:16:00,614 INFO L225 Difference]: With dead ends: 180651 [2018-11-06 19:16:00,614 INFO L226 Difference]: Without dead ends: 90310 [2018-11-06 19:16:00,698 INFO L604 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 [2018-11-06 19:16:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90310 states. [2018-11-06 19:16:01,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90310 to 87940. [2018-11-06 19:16:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87940 states. [2018-11-06 19:16:02,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87940 states to 87940 states and 98364 transitions. [2018-11-06 19:16:02,715 INFO L78 Accepts]: Start accepts. Automaton has 87940 states and 98364 transitions. Word has length 328 [2018-11-06 19:16:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:16:02,716 INFO L480 AbstractCegarLoop]: Abstraction has 87940 states and 98364 transitions. [2018-11-06 19:16:02,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:16:02,716 INFO L276 IsEmpty]: Start isEmpty. Operand 87940 states and 98364 transitions. [2018-11-06 19:16:02,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-11-06 19:16:02,726 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:16:02,726 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-06 19:16:02,726 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:16:02,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:16:02,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1415611987, now seen corresponding path program 1 times [2018-11-06 19:16:02,728 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:16:02,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:16:02,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:02,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:16:02,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:16:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-06 19:16:03,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:16:03,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 19:16:03,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:16:03,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:16:03,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:16:03,222 INFO L87 Difference]: Start difference. First operand 87940 states and 98364 transitions. Second operand 6 states. [2018-11-06 19:16:20,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:16:20,987 INFO L93 Difference]: Finished difference Result 232811 states and 260971 transitions. [2018-11-06 19:16:20,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:16:20,988 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 341 [2018-11-06 19:16:20,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:16:21,176 INFO L225 Difference]: With dead ends: 232811 [2018-11-06 19:16:21,176 INFO L226 Difference]: Without dead ends: 145661 [2018-11-06 19:16:21,227 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:16:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145661 states. [2018-11-06 19:16:22,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145661 to 140823. [2018-11-06 19:16:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140823 states. [2018-11-06 19:16:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140823 states to 140823 states and 156494 transitions. [2018-11-06 19:16:22,516 INFO L78 Accepts]: Start accepts. Automaton has 140823 states and 156494 transitions. Word has length 341 [2018-11-06 19:16:22,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:16:22,517 INFO L480 AbstractCegarLoop]: Abstraction has 140823 states and 156494 transitions. [2018-11-06 19:16:22,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:16:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 140823 states and 156494 transitions. [2018-11-06 19:16:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-11-06 19:16:22,523 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:16:22,523 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:16:22,524 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:16:22,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:16:22,524 INFO L82 PathProgramCache]: Analyzing trace with hash 34356073, now seen corresponding path program 1 times [2018-11-06 19:16:22,524 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:16:22,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:16:22,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:22,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:16:22,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:16:22,946 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-11-06 19:16:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 350 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:16:23,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:16:23,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:16:23,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:16:23,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:16:23,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:16:23,140 INFO L87 Difference]: Start difference. First operand 140823 states and 156494 transitions. Second operand 4 states. [2018-11-06 19:16:31,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:16:31,418 INFO L93 Difference]: Finished difference Result 296617 states and 328938 transitions. [2018-11-06 19:16:31,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:16:31,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 366 [2018-11-06 19:16:31,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:16:31,579 INFO L225 Difference]: With dead ends: 296617 [2018-11-06 19:16:31,579 INFO L226 Difference]: Without dead ends: 146310 [2018-11-06 19:16:31,641 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:16:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146310 states. [2018-11-06 19:16:32,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146310 to 141575. [2018-11-06 19:16:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141575 states. [2018-11-06 19:16:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141575 states to 141575 states and 155905 transitions. [2018-11-06 19:16:32,845 INFO L78 Accepts]: Start accepts. Automaton has 141575 states and 155905 transitions. Word has length 366 [2018-11-06 19:16:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:16:32,845 INFO L480 AbstractCegarLoop]: Abstraction has 141575 states and 155905 transitions. [2018-11-06 19:16:32,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:16:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 141575 states and 155905 transitions. [2018-11-06 19:16:32,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-11-06 19:16:32,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:16:32,849 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:16:32,849 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:16:32,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:16:32,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2074722948, now seen corresponding path program 1 times [2018-11-06 19:16:32,850 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:16:32,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:16:32,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:32,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:16:32,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:16:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-11-06 19:16:33,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:16:33,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:16:33,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:16:33,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:16:33,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:16:33,218 INFO L87 Difference]: Start difference. First operand 141575 states and 155905 transitions. Second operand 4 states. [2018-11-06 19:16:42,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:16:42,011 INFO L93 Difference]: Finished difference Result 282371 states and 311022 transitions. [2018-11-06 19:16:42,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:16:42,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 414 [2018-11-06 19:16:42,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:16:42,158 INFO L225 Difference]: With dead ends: 282371 [2018-11-06 19:16:42,158 INFO L226 Difference]: Without dead ends: 135244 [2018-11-06 19:16:42,222 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:16:42,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135244 states. [2018-11-06 19:16:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135244 to 124966. [2018-11-06 19:16:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124966 states. [2018-11-06 19:16:44,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124966 states to 124966 states and 132512 transitions. [2018-11-06 19:16:44,615 INFO L78 Accepts]: Start accepts. Automaton has 124966 states and 132512 transitions. Word has length 414 [2018-11-06 19:16:44,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:16:44,616 INFO L480 AbstractCegarLoop]: Abstraction has 124966 states and 132512 transitions. [2018-11-06 19:16:44,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:16:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand 124966 states and 132512 transitions. [2018-11-06 19:16:44,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2018-11-06 19:16:44,623 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:16:44,624 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-06 19:16:44,624 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:16:44,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:16:44,625 INFO L82 PathProgramCache]: Analyzing trace with hash -2029809358, now seen corresponding path program 1 times [2018-11-06 19:16:44,625 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:16:44,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:16:44,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:44,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:16:44,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:16:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2018-11-06 19:16:45,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:16:45,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-06 19:16:45,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:16:45,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:16:45,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:16:45,147 INFO L87 Difference]: Start difference. First operand 124966 states and 132512 transitions. Second operand 3 states. [2018-11-06 19:16:49,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:16:49,994 INFO L93 Difference]: Finished difference Result 245982 states and 260780 transitions. [2018-11-06 19:16:49,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:16:49,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 558 [2018-11-06 19:16:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:16:50,162 INFO L225 Difference]: With dead ends: 245982 [2018-11-06 19:16:50,163 INFO L226 Difference]: Without dead ends: 121806 [2018-11-06 19:16:50,243 INFO L604 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 [2018-11-06 19:16:50,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121806 states. [2018-11-06 19:16:52,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121806 to 119441. [2018-11-06 19:16:52,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119441 states. [2018-11-06 19:16:52,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119441 states to 119441 states and 125036 transitions. [2018-11-06 19:16:52,936 INFO L78 Accepts]: Start accepts. Automaton has 119441 states and 125036 transitions. Word has length 558 [2018-11-06 19:16:52,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:16:52,938 INFO L480 AbstractCegarLoop]: Abstraction has 119441 states and 125036 transitions. [2018-11-06 19:16:52,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 19:16:52,939 INFO L276 IsEmpty]: Start isEmpty. Operand 119441 states and 125036 transitions. [2018-11-06 19:16:52,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2018-11-06 19:16:52,950 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:16:52,951 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:16:52,952 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:16:52,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:16:52,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1860205593, now seen corresponding path program 1 times [2018-11-06 19:16:52,952 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:16:52,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:16:52,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:52,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:16:52,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:16:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:16:54,321 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-11-06 19:16:54,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:16:54,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:16:54,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 19:16:54,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 19:16:54,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:16:54,323 INFO L87 Difference]: Start difference. First operand 119441 states and 125036 transitions. Second operand 5 states. [2018-11-06 19:17:10,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:17:10,494 INFO L93 Difference]: Finished difference Result 322466 states and 338143 transitions. [2018-11-06 19:17:10,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-06 19:17:10,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 713 [2018-11-06 19:17:10,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:17:10,711 INFO L225 Difference]: With dead ends: 322466 [2018-11-06 19:17:10,712 INFO L226 Difference]: Without dead ends: 203815 [2018-11-06 19:17:10,752 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 19:17:10,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203815 states. [2018-11-06 19:17:12,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203815 to 185665. [2018-11-06 19:17:12,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185665 states. [2018-11-06 19:17:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185665 states to 185665 states and 192954 transitions. [2018-11-06 19:17:12,359 INFO L78 Accepts]: Start accepts. Automaton has 185665 states and 192954 transitions. Word has length 713 [2018-11-06 19:17:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:17:12,359 INFO L480 AbstractCegarLoop]: Abstraction has 185665 states and 192954 transitions. [2018-11-06 19:17:12,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 19:17:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 185665 states and 192954 transitions. [2018-11-06 19:17:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2018-11-06 19:17:12,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:17:12,375 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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] [2018-11-06 19:17:12,376 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:17:12,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:17:12,376 INFO L82 PathProgramCache]: Analyzing trace with hash -716144441, now seen corresponding path program 1 times [2018-11-06 19:17:12,376 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:17:12,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:17:12,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:12,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:17:12,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:17:13,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 669 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2018-11-06 19:17:13,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:17:13,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 19:17:13,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 19:17:13,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 19:17:13,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:17:13,601 INFO L87 Difference]: Start difference. First operand 185665 states and 192954 transitions. Second operand 4 states. [2018-11-06 19:17:21,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:17:21,892 INFO L93 Difference]: Finished difference Result 434478 states and 451399 transitions. [2018-11-06 19:17:21,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 19:17:21,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 770 [2018-11-06 19:17:21,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:17:22,187 INFO L225 Difference]: With dead ends: 434478 [2018-11-06 19:17:22,188 INFO L226 Difference]: Without dead ends: 229839 [2018-11-06 19:17:22,290 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 19:17:22,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229839 states. [2018-11-06 19:17:24,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229839 to 197435. [2018-11-06 19:17:24,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197435 states. [2018-11-06 19:17:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197435 states to 197435 states and 204558 transitions. [2018-11-06 19:17:24,906 INFO L78 Accepts]: Start accepts. Automaton has 197435 states and 204558 transitions. Word has length 770 [2018-11-06 19:17:24,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:17:24,907 INFO L480 AbstractCegarLoop]: Abstraction has 197435 states and 204558 transitions. [2018-11-06 19:17:24,907 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 19:17:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 197435 states and 204558 transitions. [2018-11-06 19:17:24,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2018-11-06 19:17:24,918 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:17:24,919 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:17:24,919 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:17:24,920 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:17:24,920 INFO L82 PathProgramCache]: Analyzing trace with hash 48670313, now seen corresponding path program 1 times [2018-11-06 19:17:24,920 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:17:24,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:17:24,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:24,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:17:24,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:17:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 530 proven. 139 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:17:26,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 19:17:26,800 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-06 19:17:26,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:17:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:17:27,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 19:17:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 530 proven. 139 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-06 19:17:27,771 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-06 19:17:27,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2018-11-06 19:17:27,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 19:17:27,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 19:17:27,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:17:27,773 INFO L87 Difference]: Start difference. First operand 197435 states and 204558 transitions. Second operand 6 states. [2018-11-06 19:17:49,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:17:49,315 INFO L93 Difference]: Finished difference Result 514173 states and 533194 transitions. [2018-11-06 19:17:49,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 19:17:49,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 779 [2018-11-06 19:17:49,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:17:49,659 INFO L225 Difference]: With dead ends: 514173 [2018-11-06 19:17:49,659 INFO L226 Difference]: Without dead ends: 315950 [2018-11-06 19:17:49,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 777 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-06 19:17:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315950 states. [2018-11-06 19:17:52,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315950 to 263685. [2018-11-06 19:17:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263685 states. [2018-11-06 19:17:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263685 states to 263685 states and 272917 transitions. [2018-11-06 19:17:53,231 INFO L78 Accepts]: Start accepts. Automaton has 263685 states and 272917 transitions. Word has length 779 [2018-11-06 19:17:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 19:17:53,231 INFO L480 AbstractCegarLoop]: Abstraction has 263685 states and 272917 transitions. [2018-11-06 19:17:53,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 19:17:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 263685 states and 272917 transitions. [2018-11-06 19:17:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2018-11-06 19:17:53,247 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 19:17:53,247 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 19:17:53,248 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 19:17:53,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 19:17:53,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1680008783, now seen corresponding path program 1 times [2018-11-06 19:17:53,249 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 19:17:53,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 19:17:53,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:53,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 19:17:53,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 19:17:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 19:17:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 616 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2018-11-06 19:17:55,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 19:17:55,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 19:17:55,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 19:17:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 19:17:55,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:17:55,386 INFO L87 Difference]: Start difference. First operand 263685 states and 272917 transitions. Second operand 3 states. [2018-11-06 19:18:00,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 19:18:00,769 INFO L93 Difference]: Finished difference Result 522619 states and 540911 transitions. [2018-11-06 19:18:00,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 19:18:00,769 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 850 [2018-11-06 19:18:00,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 19:18:01,046 INFO L225 Difference]: With dead ends: 522619 [2018-11-06 19:18:01,046 INFO L226 Difference]: Without dead ends: 259724 [2018-11-06 19:18:01,107 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 19:18:01,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259724 states. Received shutdown request... [2018-11-06 19:18:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259724 to 259718. [2018-11-06 19:18:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259718 states. [2018-11-06 19:18:09,587 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-06 19:18:09,592 WARN L205 ceAbstractionStarter]: Timeout [2018-11-06 19:18:09,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:18:09 BoogieIcfgContainer [2018-11-06 19:18:09,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-06 19:18:09,593 INFO L168 Benchmark]: Toolchain (without parser) took 223237.10 ms. Allocated memory was 1.5 GB in the beginning and 5.5 GB in the end (delta: 4.0 GB). Free memory was 1.4 GB in the beginning and 4.3 GB in the end (delta: -2.9 GB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,594 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-11-06 19:18:09,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2571.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 897.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -976.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,597 INFO L168 Benchmark]: Boogie Preprocessor took 469.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,597 INFO L168 Benchmark]: RCFGBuilder took 10987.94 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 290.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -82.1 MB). Peak memory consumption was 611.5 MB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,598 INFO L168 Benchmark]: TraceAbstraction took 208305.59 ms. Allocated memory was 2.6 GB in the beginning and 5.5 GB in the end (delta: 2.9 GB). Free memory was 2.1 GB in the beginning and 4.3 GB in the end (delta: -2.1 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-11-06 19:18:09,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2571.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 897.40 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 793.2 MB). Free memory was 1.1 GB in the beginning and 2.1 GB in the end (delta: -976.4 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 469.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10987.94 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 290.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -82.1 MB). Peak memory consumption was 611.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208305.59 ms. Allocated memory was 2.6 GB in the beginning and 5.5 GB in the end (delta: 2.9 GB). Free memory was 2.1 GB in the beginning and 4.3 GB in the end (delta: -2.1 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 33). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 208.2s OverallTime, 15 OverallIterations, 7 TraceHistogramMax, 165.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14195 SDtfs, 30320 SDslu, 4086 SDs, 0 SdLazy, 80523 SolverSat, 14957 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 122.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1015 GetRequests, 972 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263685occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 28.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 138732 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 7048 NumberOfCodeBlocks, 7048 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7031 ConstructedInterpolants, 0 QuantifiedInterpolants, 9059669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1225 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 5458/5740 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown